The University of Southampton

Published: 15 March 2019
Illustration
Lorenzo Zanisi (r) celebrates his STEM for Britain prize with fellow physics winners Amalia Thomas (l) and Katie Ley. Copyright: STEM for Britain

University of Southampton astronomer Lorenzo Zanisi has won a STEM for Britain Silver Award for a novel use of data science that exploited similarities between astrophysics and medicine.

The postgraduate researcher used a modelling technique for simulating how galaxies assemble to instead highlight potential shortcomings in the current methodology for treating high blood pressure.

He presented his project at the prestigious House of Commons exhibition on Wednesday and was recognised with one of three physics prizes for the foremost examples of ground-breaking early career research in the UK.

"Galaxies are all very different from each other because of different formation mechanisms and the same principle applies to human beings with our different genes," Lorenzo explains. "During my PhD studies I have shown that the dark matter haloes in which galaxies live may be responsible for the breadth of properties that we observe. This was made possible by Monte Carlo simulations and I have used this technique to show that the current methodology for treating high blood pressure leaves many people at risk of developing severe complications.

"This research is the first of its kind, and more work is certainly needed, but I believe it shows that substantial GP time is being spent in a non-optimally efficient treatment strategy; it therefore poses the question of whether this can be improved with better techniques."

Lorenzo pursued his research through an internship at St Thomas' Hospital in London which was sponsored by the South East Physics Network's Data Intensive Science Centre (DISCnet) and supported by a collaborative framework including the British Heart Foundation and the Institute of Cosmology and Gravitation in Portsmouth.

"The study shows that there may be better strategies, including adopting more precise devices to measure blood pressure, that could significantly reduce the proportion of patients at risk," Lorenzo says. "This could have implications in savings of time and cost as well as public health.

"Thorough health economics considerations are yet to be done, but this is something my research team and I would like to pursue in the near future. These considerations will be even more relevant when the next guidelines for diagnosis of high blood pressure come out this August. According to these guidelines, thousands more patients will be put on treatment, which will indeed increase the pressure on GPs. Having a more efficient treatment strategy and more accurate devices will thus be essential in the future."

STEM for Britain promotes early-stage and early-career research scientists, engineers, technologists and mathematicians through a high profile exhibition during British Science Week. The competition attracts hundreds of entrants, of whom around a third are selected to present their work in Parliament.

"This is the most valuable recognition so far of the passion I put into my research,"€ÂÂÂ? Lorenzo says. "Being selected to participate in such prestigious event was already an honour, winning a prize was something absolutely special. I must thank my PhD supervisor Dr Francesco Shankar, cardiologist Professor Phil Chowienczyk and former Southampton astronomer Dr Chris Frohmaier who supported me in this project. These findings show that there are potentially many unexplored opportunities for breakthroughs that may only be possible when scientists from very different fields work together."

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Email:
M.Sullivan@soton.ac.uk

 

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Head of School of Physics and Astronomy

Faculty of Engineering and Physical Sciences ED&I Champion

Professor Mark Sullivan graduated from Southampton (MPhys with Astronomy), and received a PhD in Astronomy from Cambridge. Following postdoctoral fellowship positions in Durham, Toronto and Oxford, Mark came back to Southampton in 2012 as a Royal Society University Research Fellow. He is now a Professor of Astrophysics in the Astronomy Group, and Head of the School of Physics and Astronomy.

Research

Research interests

Mark's research interests include supernovae, dark energy, galaxy evolution, and applications of data science techniques to astrophysics research. His supernova research group has been funded by the European Research Council and by the Science & Technology Facilities Council (STFC), and he is the PI of the STFC Centre for Doctoral Training in Data Intensive Science (DISCnet).

Publications

Sullivan, M., Conley, A., Howell, D.A., Neill, J.D., Astier, P., Balland, C., Basa, S., Carlberg, R.G., Fouchez, D., Guy, J., Hardin, D., Hook, I.M., Pain, R., Palanque-Delabrouille, N., Perrett, K.M., Pritchet, C.J., Regnault, N., Rich, J., Ruhlmann-Kleider, V., Baumont, S., Hsiao, E., Kronborg, T., Lidman, C., Perlmutter, S. and Walker, E.S. (2010) The dependence of Type Ia supernovae luminosities on their host galaxies. Monthly Notices of the Royal Astronomical Society, 406 (2), 782-802. (doi:10.1111/j.1365-2966.2010.16731.x).

Sullivan, M., Guy, J., Conley, A., Regnault, N., Astier, P., Balland, C., Basa, S., Carlberg, R.G., Fouchez, D., Hardin, D., Hook, I.M., Howell, D.A., Pain, R., Palanque-Delabrouille, N., Perrett, K.M., Pritchet, C.J., Rich, J., Ruhlmann-Kleider, V., Balam, D., Baumont, S., Ellis, R.S., Fabbro, S., Fakhouri, H.K., Fourmanoit, N., González-Gaitán, S., Graham, M.L., Hudson, M.J., Hsiao, E., Kronborg, T., Lidman, C., Mourao, A.M., Neill, J.D., Perlmutter, S., Ripoche, P., Suzuki, N. and Walker, E.S. (2011) SNLS3: Constraints on dark energy combining the supernova legacy survey three-year data with other probes. Astrophysical Journal, 737 (2), 102-121. (doi:10.1088/0004-637X/737/2/102).

Nugent, Peter E., Sullivan, Mark, Cenko, S. Bradley, Thomas, Rollin C., Kasen, Daniel, Howell, D. Andrew, Bersier, David, Bloom, Joshua S., Kulkarni, S. R., Kandrashoff, Michael T., Filippenko, Alexei V., Silverman, Jeffrey M., Marcy, Geoffrey W., Howard, Andrew W., Isaacson, Howard T., Maguire, Kate, Suzuki, Nao, Tarlton, James E., Pan, Yen-Chen, Bildsten, Lars, Fulton, Benjamin J., Parrent, Jerod T., Sand, David, Podsiadlowski, Philipp, Bianco, Federica B., Dilday, Benjamin, Graham, Melissa L., Lyman, Joe, James, Phil, Kasliwal, Mansi M., Law, Nicholas M., Quimby, Robert M., Hook, Isobel M., Walker, Emma S., Mazzali, Paolo, Pian, Elena, Ofek, Eran O., Gal-Yam, Avishay and Poznanski, Dovi (2011) Supernova SN 2011fe from an exploding carbon–oxygen white dwarf star. Nature, 480 (7377), 344-347. (doi:10.1038/nature10644).

Ellis, R.S., Sullivan, M., Nugent, P.E., Howell, D.A., Gal‐Yam, A., Astier, P., Balam, D., Balland, C., Basa, S., Carlberg, R.G., Conley, A., Fouchez, D., Guy, J., Hardin, D., Hook, I., Pain, R., Perrett, K., Pritchet, C.J. and Regnault, N. (2008) Verifying the cosmological utility of type Ia supernovae: implications of a dispersion in the ultraviolet spectra. The Astrophysical Journal, 674 (1), 51-69. (doi:10.1086/524981).

Guy, J., Sullivan, Mark, Conley, A., Regnault, N., Astier, P., Balland, C., Basa, S., Carlberg, R., Fouchez, D., Hardin, D., Hook, I., Howell, D., Pain, R., Palanque-Delabrouille, N., Perrett, K., Pritchet, C., Rich, J., Ruhlmann-Kleider, V., Balam, D., Baumont, S., Ellis, R., Fabbro, S., Fakhouri, H., Fourmanoit, N., Gonzalez-Gaitan, S., Graham, M., Hsiao, E., Kronborg, T., Lidman, C., Mourao, A., Perlmutter, S., Ripoche, P., Suzuki, N. and Walker, E. (2010) The Supernova Legacy Survey 3-year sample: type Ia supernovae photometric distances and cosmological constraints. Astronomy & Astrophysics, 523 (A7), 1-34. (doi:10.1051/0004-6361/201014468).

Maguire, K., Sullivan, M., Patat, F., Gal-Yam, A., Hook, I. M., Dhawan, S., Howell, D. A., Mazzali, P., Nugent, P. E., Pan, Y.- C., Podsiadlowski, P., Simon, J. D., Sternberg, A., Valenti, S., Baltay, C., Bersier, D., Blagorodnova, N., Chen, T.- W., Ellman, N., Feindt, U., Forster, F., Fraser, M., Gonzalez-Gaitan, S., Graham, M. L., Gutierrez, C., Hachinger, S., Hadjiyska, E., Inserra, C., Knapic, C., Laher, R. R., Leloudas, G., Margheim, S., McKinnon, R., Molinaro, M., Morrell, N., Ofek, E. O., Rabinowitz, D., Rest, A., Sand, D., Smareglia, R., Smartt, S. J., Taddia, F., Walker, E. S., Walton, N. A. and Young, D. R. (2013) A statistical analysis of circumstellar material in Type Ia supernovae. Monthly Notices of the Royal Astronomical Society, 436 (1), 222-240. (doi:10.1093/mnras/stt1586).

Betoule, M., Kessler, R., Guy, J., Mosher, J., Hardin, D., Biswas, R., Astier, P., El-Hage, P., Konig, M., Kuhlmann, S., Marriner, J., Pain, R., Regnault, N., Balland, C., Bassett, B.A., Brown, P.J., Campbell, H., Carlberg, R.G., Cellier-Holzem, F., Cinabro, D., Conley, A., D’Andrea, C.B., DePoy, D.L., Doi, M., Ellis, R.S., Fabbro, S., Filippenko, A.V., Foley, R.J., Frieman, J.A., Fouchez, D., Galbany, L., Goobar, A., Gupta, R.R., Hill, G.J., Hlozek, R., Hogan, C.J., Hook, I.M., Howell, D.A., Jha, S.W., Le Guillou, L., Leloudas, G., Lidman, C., Marshall, J.L., Möller, A., Mourão, A.M., Neveu, J., Nichol, R., Olmstead, M.D., Palanque-Delabrouille, N., Perlmutter, S., Prieto, J.L., Pritchet, C.J., Richmond, M., Riess, A.G., Ruhlmann-Kleider, V., Sako, M., Schahmaneche, K., Schneider, D.P., Smith, M., Sollerman, J., Sullivan, M., Walton, N.A. and Wheeler, C.J. (2014) Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples. Astronomy & Astrophysics, 568 (A22), 1-32, [A22]. (doi:10.1051/0004-6361/201423413).

Arcavi, Iair, Gal-Yam, Avishay, Sullivan, Mark, Pan, Yen-Chen, Cenko, S. Bradley, Horesh, Assaf, Ofek, Eran O., De Cia, Annalisa, Yan, Lin, Yang, Chen-Wei, Howell, D.A., Tal, David, Kulkarni, Shrinivas R., Tendulkar, Shriharsh P., Tang, Sumin, Xu, Dong, Sternberg, Assaf, Cohen, Judith G., Bloom, Joshua S., Nugent, Peter E., Kasliwal, Mansi M., Perley, Daniel A., Quimby, Robert M., Miller, Adam A., Theissen, Christopher A. and Laher, Russ R. (2014) A continuum of H- to He-rich tidal disruption candidates with a preference for E+A galaxies. The Astrophysical Journal, 793 (38), 1-16. (doi:10.1088/0004-637X/793/1/38).

Mazzali, P.A., Sullivan, M., Hachinger, S., Ellis, R.S., Nugent, P.E., Howell, D.A., Gal-Yam, A., Maguire, K., Cooke, J., Thomas, R., Nomoto, K. and Walker, E.S. (2014) Hubble Space Telescope spectra of the Type Ia supernova SN 2011fe: a tail of low-density, high-velocity material with Z <Z. Monthly Notices of the Royal Astronomical Society, 439 (2), 1959-1979. (doi:10.1093/mnras/stu077).

Nicholl, M., Smartt, S.J., Jerkstrand, A., Inserra, C., Anderson, J.P., Baltay, C., Benetti, S., Chen, T.- W., Elias-Rosa, N., Feindt, U., Fraser, M., Gal-Yam, A., Hadjiyska, E., Howell, D.A., Kotak, R., Lawrence, A., Leloudas, G., Margheim, S., Mattila, S., McCrum, M., McKinnon, R., Mead, A., Nugent, P., Rabinowitz, D., Rest, A., Smith, K.W., Sollerman, J., Sullivan, M., Taddia, F., Valenti, S., Walker, E.S. and Young, D.R. (2014) Superluminous supernovae from PESSTO. Monthly Notices of the Royal Astronomical Society, 444 (3), 2096-2113. (doi:10.1093/mnras/stu1579).

Ofek, Eran O., Zoglauer, Andreas, Boggs, Steven E., Barriére, Nicolas M., Reynolds, Stephen P., Fryer, Chris L., Harrison, Fiona A., Cenko, S. Bradley, Kulkarni, Shrinivas R., Gal-Yam, Avishay, Arcavi, Iair, Bellm, Eric, Bloom, Joshua S., Christensen, Finn, Craig, William W., Even, Wesley, Filippenko, Alexei V., Grefenstette, Brian, Hailey, Charles J., Laher, Russ, Madsen, Kristin, Nakar, Ehud, Nugent, Peter E., Stern, Daniel, Sullivan, Mark, Surace, Jason and Zhang, William W. (2014) SN 2010jl: Optical to hard x-ray observations reveal an explosion embedded in a ten solar mass cocoon. The Astrophysical Journal, 781 (42), 1-17. (doi:10.1088/0004-637X/781/1/42).

Ofek, Eran O., Sullivan, Mark, Shaviv, Nir J., Steinbok, Aviram, Arcavi, Iair, Gal-Yam, Avishay, Tal, David, Kulkarni, Shrinivas R., Nugent, Peter E., Ben-Ami, Sagi, Kasliwal, Mansi M., Cenko, S. Bradley, Laher, Russ, Surace, Jason, Bloom, Joshua S., Filippenko, Alexei V., Silverman, Jeffrey M. and Yaron, Ofer (2014) Precursors prior to type IIn supernova explosions are common: precursor rates, properties, and correlations. The Astrophysical Journal, 789 (104), 1-15. (doi:10.1088/0004-637X/789/2/104).

Pan, Y.- C., Sullivan, M., Maguire, K., Hook, I.M., Nugent, P.E., Howell, D.A., Arcavi, I., Botyanszki, J., Cenko, S.B., DeRose, J., Fakhouri, H.K., Gal-Yam, A., Hsiao, E., Kulkarni, S.R., Laher, R.R., Lidman, C., Nordin, J., Walker, E.S. and Xu, D. (2014) The host galaxies of Type Ia supernovae discovered by the Palomar Transient Factory. Monthly Notices of the Royal Astronomical Society, 438 (2), 1391-1416. (doi:10.1093/mnras/stt2287).

Smith, N., Mauerhan, J.C., Cenko, S.B., Kasliwal, M.M., Silverman, J.M., Filippenko, A.V., Gal-Yam, A., Clubb, K.I., Graham, M.L., Leonard, D.C., Horst, J.C., Williams, G.G., Andrews, J.E., Kulkarni, S.R., Nugent, P., Sullivan, M., Maguire, K., Xu, D. and Ben-Ami, S. (2015) PTF11iqb: cool supergiant mass-loss that bridges the gap between Type IIn and normal supernovae. Monthly Notices of the Royal Astronomical Society, 449 (2), 1876-1896. (doi:10.1093/mnras/stv354).

Smartt, S.J., Valenti, S., Fraser, M., Inserra, C., Young, D.R., Sullivan, M., Pastorello, A., Benetti, S., Gal-Yam, A., Knapic, C., Molinaro, M., Smareglia, R., Smith, K.W., Taubenberger, S., Yaron, O., Anderson, J.P., Ashall, C., Balland, C., Baltay, C., Barbarino, C., Bauer, F.E., Baumont, S., Bersier, D., Blagorodnova, N., Bongard, S., Botticella, M.T., Bufano, F., Bulla, M., Cappellaro, E., Campbell, H., Cellier-Holzem, F., Chen, T.-W., Childress, M.J., Clocchiatti, A., Contreras, C., Dall’Ora, M., Danziger, J., de Jaeger, T., De Cia, A., Della Valle, M., Dennefeld, M., Elias-Rosa, N., Elman, N., Feindt, U., Fleury, M., Gall, E., Gonzalez-Gaitan, S., Galbany, L., Morales Garoffolo, A., Greggio, L., Guillou, L.L., Hachinger, S., Hadjiyska, E., Hage, P.E., Hillebrandt, W., Hodgkin, S., Hsiao, E.Y., James, P.A., Jerkstrand, A., Kangas, T., Kankare, E., Kotak, R., Kromer, M., Kuncarayakti, H., Leloudas, G., Lundqvist, P., Lyman, J.D., Hook, I.M., Maguire, K., Manulis, I., Margheim, S.J., Mattila, S., Maund, J.R., Mazzali, P.A., McCrum, M., McKinnon, R., Moreno-Raya, M.E., Nicholl, M., Nugent, P., Pain, R., Pignata, G., Phillips, M.M., Polshaw, J., Pumo, M.L., Rabinowitz, D., Reilly, E., Romero-Cañizales, C., Scalzo, R., Schmidt, B., Schulze, S., Sim, S., Sollerman, J., Taddia, F., Tartaglia, L., Terreran, G., Tomasella, L., Turatto, M., Walker, E., Walton, N.A., Wyrzykowski, L., Yuan, F. and Zampieri, L. (2015) PESSTO: survey description and products from the first data release by the Public ESO Spectroscopic Survey of Transient Objects. Astronomy & Astrophysics, 579 (A40), 1-25. (doi:10.1051/0004-6361/201425237).

Valenti, S., Yuan, F., Taubenberger, S., Maguire, K., Pastorello, A., Benetti, S., Smartt, S.J., Cappellaro, E., Howell, D.A., Bildsten, L., Moore, K., Stritzinger, M., Anderson, J.P., Benitez-Herrera, S., Bufano, F., Gonzalez-Gaitan, S., McCrum, M.G., Pignata, G., Fraser, M., Gal-Yam, A., Le Guillou, L., Inserra, C., Reichart, D.E., Scalzo, R., Sullivan, M., Yaron, O. and Young, D.R. (2014) PESSTO monitoring of SN 2012hn: further heterogeneity among faint Type I supernovae. Monthly Notices of the Royal Astronomical Society, 437 (2), 1519-1533. (doi:10.1093/mnras/stt1983).

White, Christopher J., Kasliwal, Mansi M., Nugent, Peter E., Gal-Yam, Avishay, Howell, D. Andrew, Sullivan, Mark, Goobar, Ariel, Piro, Anthony L., Bloom, Joshua S., Kulkarni, Shrinivas R., Laher, Russ R., Masci, Frank, Ofek, Eran O., Surace, Jason, Ben-Ami, Sagi, Cao, Yi, Cenko, S. Bradley, Hook, Isobel M., Jönsson, Jakob, Matheson, Thomas, Sternberg, Assaf, Quimby, Robert M. and Yaron, Ofer (2015) Slow-speed supernovae from the Palomar Transient Factory: two channels. The Astrophysical Journal, 799 (52), 1-21. (doi:10.1088/0004-637X/799/1/52).

Nicholl, M., Smartt, S.J., Jerkstrand, A., Inserra, C., Sim, S.A., Chen, T.-W., Benetti, S., Fraser, M., Gal-Yam, A., Kankare, E., Maguire, K., Smith, K., Sullivan, M., Valenti, S., Young, D.R., Baltay, C., Bauer, F.E., Baumont, S., Bersier, D., Botticella, M.-T., Childress, M., Dennefeld, M., Della Valle, M., Elias-Rosa, N., Feindt, U., Galbany, L., Hadjiyska, E., Le Guillou, L., Leloudas, G., Mazzali, P., McKinnon, R., Polshaw, J., Rabinowitz, D., Rostami, S., Scalzo, R., Schmidt, B.P., Schulze, S., Sollerman, J., Taddia, F. and Yuan, F. (2015) On the diversity of superluminous supernovae: ejected mass as the dominant factor. Monthly Notices of the Royal Astronomical Society, 452 (4), 3869-3893. (doi:10.1093/mnras/stv1522).

Firth, R.E., Sullivan, M., Gal-Yam, A., Howell, D.A., Maguire, K., Nugent, P., Piro, A.L., Baltay, C., Feindt, U., Hadjiyksta, E., McKinnon, R., Ofek, E., Rabinowitz, D. and Walker, E.S. (2015) The rising light curves of Type Ia supernovae. Monthly Notices of the Royal Astronomical Society, 446 (4), 3895-3910. (doi:10.1093/mnras/stu2314).

Vreeswijk, Paul M., Savaglio, Sandra, Gal-Yam, Avishay, De Cia, Annalisa, Quimby, Robert M., Sullivan, Mark, Cenko, S. Bradley, Perley, Daniel A., Filippenko, Alexei V., Clubb, Kelsey I., Taddia, Francesco, Sollerman, Jesper, Leloudas, Giorgos, Arcavi, Iair, Rubin, Adam, Kasliwal, Mansi M., Cao, Yi, Yaron, Ofer, Tal, David, Ofek, Eran O., Capone, John, Kutyrev, Alexander S., Toy, Vicki, Nugent, Peter E., Laher, Russ, Surace, Jason and Kulkarni, Shrinivas R. (2014) The hydrogen-poor superluminous supernova iPTF 13ajg and its host galaxy in absorption and emission. The Astrophysical Journal, 797 (24), 1-15. (doi:10.1088/0004-637X/797/1/24).

Maguire, K., Sullivan, M., Pan, Y.-C., Gal-Yam, A., Hook, I.M., Howell, D.A., Nugent, P.E., Mazzali, P., Chotard, N., Clubb, K.I., Filippenko, A.V., Kasliwal, M.M., Kandrashoff, M.T., Poznanski, D., Saunders, C.M., Silverman, J.M., Walker, E. and Xu, D. (2014) Exploring the spectral diversity of low-redshift Type Ia supernovae using the Palomar Transient Factory. Monthly Notices of the Royal Astronomical Society, 444 (4), 3258-3274. (doi:10.1093/mnras/stu1607).

Corsi, A., Ofek, E.O., Gal-Yam, A., Frail, D.A., Kulkarni, S.R., Fox, D.B., Kasliwal, M.M., Sullivan, M., Horesh, A., Carpenter, J., Maguire, K., Arcavi, I., Cenko, S.B., Cao, Y., Mooley, K., Pan, Y.-C., Sesar, B., Sternberg, A., Xu, D., Bersier, D., James, P., Bloom, J.S. and Nugent, P.E. (2014) A multi-wavelength investigation of the radio-loud supernova PTF11qcj and its circumstellar environment. The Astrophysical Journal, 782 (42), 1-18. (doi:10.1088/0004-637X/782/1/42).

Gonzalez-Gaitan, S., Tominaga, N., Molina, J., Galbany, L., Bufano, F., Anderson, J.P., Gutierrez, C., Forster, F., Pignata, G., Bersten, M., Howell, D.A., Sullivan, M., Carlberg, R., de Jaeger, T., Hamuy, M., Baklanov, P.V. and Blinnikov, S.I. (2015) The rise-time of Type II supernovae. Monthly Notices of the Royal Astronomical Society, 451 (2), 2212-2229. (doi:10.1093/mnras/stv1097).

Papadopoulos, A., D'andrea, C.B., Sullivan, M., Nichol, R.C., Barbary, K., Biswas, R., Brown, P.J., Covarrubias, R.A., Finley, D.A., Fischer, J.A., Foley, R.J., Goldstein, D., Gupta, R.R., Kessler, R., Kovacs, E., Kuhlmann, S.E., Lidman, C., March, M., Nugent, P.E., Sako, M., Smith, R.C., Spinka, H., Wester, W., Abbott, T.M.C., Abdalla, F., Allam, S.S., Banerji, M., Bernstein, J.P., Bernstein, R.A., Carnero, A., da Costa, L.N., DePoy, D L., Desai, S., Diehl, H.T., Eifler, T., Evrard, A.E., Flaugher, B., Frieman, J.A., Gerdes, D., Gruen, D., Honscheid, K., James, D., Kuehn, K., Kuropatkin, N., Lahav, O., Maia, M.A.G., Makler, M., Marshall, J.L., Merritt, K.W., Miller, C.J., Miquel, R., Ogando, R., Plazas, A.A., Roe, N.A., Romer, A.K., Rykoff, E., Sanchez, E., Santiago, B.X., Scarpine, V., Schubnell, M., Sevilla, I., Soares-Santos, M., Suchyta, E., Swanson, M., Tarle, G., Thaler, J., Tucker, L.D., Wechsler, R.H. and Zuntz, J. (2015) DES13S2cmm: the first superluminous supernova from the Dark Energy Survey. Monthly Notices of the Royal Astronomical Society, 449 (2), 1215-1227. (doi:10.1093/mnras/stv174).

Ofek, Eran O., Arcavi, Iair, Tal, David, Sullivan, Mark, Gal-Yam, Avishay, Kulkarni, Shrinivas R., Nugent, Peter E., Ben-Ami, Sagi, Bersier, David, Cao, Yi, Cenko, S. Bradley, De Cia, Annalisa, Filippenko, Alexei V., Fransson, Claes, Kasliwal, Mansi M., Laher, Russ, Surace, Jason, Quimby, Robert and Yaron, Ofer (2014) Interaction-powered supernovae: rise-time versus peak-luminosity correlation and the shock-breakout velocity. The Astrophysical Journal, 788 (154), 1-6. (doi:10.1088/0004-637X/788/2/154).

Mazzali, P.A., Sullivan, M., Filippenko, A.V., Garnavich, P.M., Clubb, K.I., Maguire, K., Pan, Y.-C., Shappee, B., Silverman, J.M., Benetti, S., Hachinger, S., Nomoto, K. and Pian, E. (2015) Nebular spectra and abundance tomography of the Type Ia supernova SN 2011fe: a normal SN Ia with a stable Fe core. Monthly Notices of the Royal Astronomical Society, 450 (3), 2631-2643. (doi:10.1093/mnras/stv761).

Pan, Y.-C., Sullivan, M., Maguire, K., Gal-Yam, A., Hook, I. M., Howell, D. A., Nugent, P. E. and Mazzali, P. A. (2015) Type Ia supernova spectral features in the context of their host galaxy properties. Monthly Notices of the Royal Astronomical Society, 446 (1), 354-368. (doi:10.1093/mnras/stu2121).

Graham, M.L., Nugent, P.E., Sullivan, M., Filippenko, A.V., Cenko, S.B., Silverman, J.M., Clubb, K.I. and Zheng, W. (2015) Constraining the progenitor companion of the nearby Type Ia SN 2011fe with a nebular spectrum at +981 d. Monthly Notices of the Royal Astronomical Society, 454 (2), 1948-1957. (doi:10.1093/mnras/stv1888).

Maguire, K., Taubenberger, S., Sullivan, M. and Mazzali, P.A. (2016) Searching for swept-up hydrogen and helium in the late-time spectra of 11 nearby Type Ia supernovae. Monthly Notices of the Royal Astronomical Society, 457 (3), 3254-3265. (doi:10.1093/mnras/stv2991).

Baron, E., Hoeflich, P., Friesen, Brian, Sullivan, M., Hsiao, E., Ellis, R.S., Gal-Yam, A., Howell, D.A., Nugent, P.E., Dominguez, I., Krisciunas, K., Phillips, M.M., Suntzeff, N., Wang, L. and Thomas, R.C. (2015) Spectral models for early time SN 2011fe observations. Monthly Notices of the Royal Astronomical Society, 454 (3), 2549-2556. (doi:10.1093/mnras/stv1951).

Scovacricchi, D., Nichol, R.C., Bacon, D., Sullivan, M. and Prajs, S. (2016) Cosmology with superluminous supernovae. Monthly Notices of the Royal Astronomical Society, 456 (2), 1700-1707. (doi:10.1093/mnras/stv2752).

Smith, M., Sullivan, M., D'andrea, C.B., Castander, F.J., Casas, R., Prajs, S., Papadopoulos, A., Nichol, R.C., Karpenka, N.V., Bernard, S.R., Brown, P., Cartier, R., Cooke, J., Curtin, C., Davis, T.M., Finley, D.A., Foley, R.J., Gal-Yam, A., Goldstein, D.A., González-Gaitán, S., Gupta, R.R., Howell, D.A., Inserra, C., Kessler, R., Lidman, C., Marriner, J., Nugent, P., Pritchard, T.A., Sako, M., Smartt, S., Smith, R.C., Spinka, H., Thomas, R.C., Wolf, R.C., Zenteno, A., Abbott, T.M.C., Benoit-Lévy, A., Bertin, E., Brooks, D., Buckley-Geer, E., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Crocce, M., Cunha, C.E., Costa, L.N. da, Desai, S., Diehl, H.T., Doel, P., Estrada, J., Evrard, A.E., Flaugher, B., Fosalba, P., Frieman, J., Gerdes, D.W., Gruen, D., Gruendl, R.A., James, D.J., Kuehn, K., Kuropatkin, N., Lahav, O., Li, T.S., Marshall, J.L., Martini, P., Miller, C.J., Miquel, R., Nord, B., Ogando, R., Plazas, A.A., Reil, K., Romer, A.K., Roodman, A., Rykoff, E.S., Sanchez, E., Scarpine, V., Schubnell, M., Sevilla-Noarbe, I., Soares-Santos, M., Sobreira, F., Suchyta, E., Swanson, M.E.C., Tarle, G., Walker, A.R. and Wester, W. (2016) DES14X3taz: a type I superluminous supernova showing a luminous, rapidly cooling initial pre-peak bump. The Astrophysical Journal, 818 (L8), 1-7. (doi:10.3847/2041-8205/818/1/L8).

Strotjohann, Nora L., Ofek, Eran O., Gal-Yam, Avishay, Sullivan, Mark, Kulkarni, Shrinivas R., Shaviv, Nir J., Fremling, Christoffer, Kasliwal, Mansi M., Nugent, Peter E., Cao, Yi, Arcavi, Iair, Sollerman, Jesper, Filippenko, Alexei V., Yaron, Ofer, Laher, Russ and Surace, Jason (2015) Search for precursor eruptions among type IIb supernovae. The Astrophysical Journal, 811 (117), 1-16. (doi:10.1088/0004-637X/811/2/117).

Tartaglia, L., Pastorello, A., Sullivan, M., Baltay, C., Rabinowitz, D., Nugent, P., Drake, A.J., Djorgovski, S.G., Gal-Yam, A., Fabrika, S., Barsukova, E.A., Goranskij, V.P., Valeev, A.F., Fatkhullin, T., Schulze, S., Mehner, A., Bauer, F.E., Taubenberger, S., Nordin, J., Valenti, S., Howell, D.A., Benetti, S., Cappellaro, E., Fasano, G., Elias-Rosa, N., Barbieri, M., Bettoni, D., Harutyunyan, A., Kangas, T., Kankare, E., Martin, J.C., Mattila, S., Morales-Garoffolo, A, Ochner, P., Rebbapragada, Umaa D., Terreran, G., Tomasella, L., Turatto, M., Verroi, E. and Woźniak, P.R. (2016) Interacting supernovae and supernova impostors. LSQ13zm: an outburst heralds the death of a massive star. Monthly Notices of the Royal Astronomical Society, 459 (1), 1039-1059. (doi:10.1093/mnras/stw675).

Mazzali, P.A., Sullivan, M., Pian, E., Greiner, J. and Kann, D.A. (2016) Spectrum formation in superluminous supernovae (Type I). Monthly Notices of the Royal Astronomical Society, 458 (4), 3455-3465. (doi:10.1093/mnras/stw512).

Childress, Michael J., Hillier, D. John, Seitenzahl, Ivo, Sullivan, Mark, Maguire, Kate, Taubenberger, Stefan, Scalzo, Richard, Ruiter, Ashley, Blagorodnova, Nadejda, Camacho, Yssavo, Castillo, Jayden, Elias-Rosa, Nancy, Fraser, Morgan, Gal-Yam, Avishay, Graham, Melissa, Howell, D. Andrew, Inserra, Cosimo, Jha, Saurabh W., Kumar, Sahana, Mazzali, Paolo A., McCully, Curtis, Morales-Garoffolo, Antonia, Pandya, Viraj, Polshaw, Joe, Schmidt, Brian, Smartt, Stephen, Smith, Ken W., Sollerman, Jesper, Spyromilio, Jason, Tucker, Brad, Valenti, Stefano, Walton, Nicholas, Wolf, Christian, Yaron, Ofer, Young, D. R., Yuan, Fang and Zhang, Bonnie (2015) Measuring nickel masses in Type Ia supernovae using cobalt emission in nebular phase spectra. Monthly Notices of the Royal Astronomical Society, 454 (4), 3816-3842. (doi:10.1093/mnras/stv2173).

Yuan, Fang, Jerkstrand, A., Valenti, S., Sollerman, J., Seitenzahl, I.R., Pastorello, A., Schulze, S., Chen, T.-W., Childress, Michael, Fraser, M., Fremling, C., Kotak, R., Ruiter, A.J., Schmidt, B.P., Smartt, S.J., Taddia, F., Terreran, G., Tucker, B.E., Barbarino, C., Benetti, S., Elias-Rosa, N., Gal-Yam, A., Howell, D.A., Inserra, C., Kankare, E., Lee, M.Y., Li, K.L., Maguire, K., Margheim, S., Mehner, A., Ochner, P., Sullivan, Mark, Tomasella, L. and Young, D.R. (2016) 450 d of Type II SN 2013ej in optical and near-infrared. Monthly Notices of the Royal Astronomical Society, 461 (2), 2003-2018. (doi:10.1093/mnras/stw1419).

Hoenig, S.F., Watson, D., Kishimoto, M., Gandhi, P., Goad, M., Horne, K., Shankar, F., Banerji, M., Boulderstone, B., Jarvis, M., Smith, M. and Sullivan, M. (2017) Cosmology with AGN dust time lags–simulating the new VEILS survey. Monthly Notices of the Royal Astronomical Society, 464 (2), 1693-1703. (doi:10.1093/mnras/stw2484).

Cartier Ugarte, R., Sullivan, M., Firth, R., Pignata, G., Mazzali, P., Maguire, K., Childress, M., Arcavi, I., Ashall, C., Bassett, B., Crawford, S.M., Frohmaier, C., Galbany, L., Gal-Yam, A., Hosseinzadeh, G., Howell, D.A., Inserra, C., Johansson, J., Kasai, E.K., McCully, C., Prajs, S., Prentice, S., Schulze, S., Smartt, S.J., Smith, K.W., Smith, M., Valenti, S. and Young, D.R. (2017) Early observations of the nearby Type Ia supernova SN 2015F. Monthly Notices of the Royal Astronomical Society, 464 (4), 4476-4494. (doi:10.1093/mnras/stw2678).

Prajs, S., Sullivan, M., Smith, M., Levan, A., Karpenka, N.V., Edwards, T.D.P., Walker, C.R., Wolf, W.M., Balland, C., Carlberg, R., Howell, D.A., Lidman, C., Pain, R., Pritchet, C. and Ruhlmann-Kleider, V. (2017) The volumetric rate of superluminous supernovae at z ~ 1. Monthly Notices of the Royal Astronomical Society, 464 (3), 3568-3579. (doi:10.1093/mnras/stw1942).

Frohmaier, Christopher (2017) Real-Time Recovery Efficiencies and Performance of the Palomar Transient Factory's Transient Discovery Pipeline: Fakes Catalog. University of Southampton doi:10.5258/SOTON/D0030 [Dataset]

Dimitriadis, G., Sullivan, M., Kerzendorf, W., Ruiter, A. J., Seitenzahl, I. R., Taubenberger, S., Doran, G. B., Gal-Yam, A., Laher, R. R., Maguire, K., Nugent, P., Ofek, E. O. and Surace, J. (2017) The late-time light curve of the Type Ia supernova SN 2011fe. Monthly Notices of the Royal Astronomical Society, 468 (4), 3798-3812. (doi:10.1093/mnras/stx683).

Frohmaier, Christopher, Sullivan, Mark, Nugent, P.E., Goldstein, D.A. and DeRose, J. (2017) Real-time recovery efficiencies and performance of the Palomar Transient Factory's transient discovery pipeline. The Astrophysical Journal Supplement Series, 230 (1). (doi:10.3847/1538-4365/aa6d70).

Hachinger, S., Ropke, F.K, Mazzali, P.A., Gal-Yam, Avishay, Maguire, K. and Sullivan, M. (2017) Type Ia supernovae with and without blueshifted narrow Na I D lines - how different is their structure? Monthly Notices of the Royal Astronomical Society, 471 (1), 491-506. (doi:10.1093/mnras/stx1578).

Yaron, O., Perley, D.A., Gal-Yam, A., Groh, J.H., Horesh, A., Ofek, E.O., Kulkarni, S.R., Sollerman, J., Fransson, C., Rubin, A., Szabo, P., Sapir, N., Taddia, F., Cenko, S.B., Valenti, S., Arcavi, I., Howell, D.A., Kasliwal, M.M., Vreeswijk, P.M., Khazov, D., Fox, O.D., Cao, Y., Gnat, O., Kelly, P.L., Nugent, P.E., Filippenko, A.V., Laher, R.R., Wozniak, P.R., Lee, W.H., Rebbapragada, U.D., Maguire, K., Sullivan, M. and Soumagnac, M.T. (2017) Confined dense circumstellar material surrounding a regular type II supernova. Nature Physics, 13 (5), 510-517. (doi:10.1038/nphys4025).

Goobar, A., Amanullah, R., Kulkarni, S.R., Nugent, P.E., Johansson, J., Steidel, C., Law, D., Mörtsell, E., Quimby, R., Blagorodnova, N., Brandeker, A., Cao, Y., Cooray, A., Ferretti, R., Fremling, C., Hangard, L., Kasliwal, M., Kupfer, T., Lunnan, R., Masci, F., Miller, A.A., Nayyeri, H., Neill, J.D., Ofek, E.O., Papadogiannakis, S., Petrushevska, T., Ravi, V., Sollerman, J., Sullivan, M., Taddia, F., Walters, R., Wilson, D., Yan, L. and Yaron, O. (2017) iPTF16geu: A multiply imaged, gravitationally lensed type Ia supernova. Science, 356 (6335), 291-295. (doi:10.1126/science.aal2729).

Terreran, G., Pumo, M.L., Chen, T.-W., Moriya, T. J., Taddia, F. and Sullivan, M. (2017) Hydrogen-rich supernovae beyond the neutrino-driven core-collapse paradigm. Nature Astronomy. (doi:10.1038/s41550-017-0228-8).

Karamehmetoglu, E., Taddia, F., Sollerman, J., Wyrzykowski, Ł., Schmidl, S., Fraser, M., Fremling, C., Greiner, J., Inserra, C., Kostrzewa-Rutkowska, Z., Maguire, K., Smartt, S., Sullivan, M. and Young, D.R. (2017) OGLE-2014-SN-131: a long-rising Type Ibn supernova from a massive progenitor. Astronomy & Astrophysics, 602, 1-14, [A93]. (doi:10.1051/0004-6361/201629619).

Chen, T.-W., Nicholl, M., Smartt, S.J., Mazzali, P.A., Yates, R.M., Moriya, T.J., Inserra, C., Langer, N., Krühler, T., Pan, Y.-C., Kotak, R., Galbany, L., Schady, P., Wiseman, P., Greiner, J., Schulze, S., Man, A.W.S., Jerkstrand, A., Dennefeld, M., Baltay, C., Bolmer, J., Kankare, E., Knust, F., Maguire, K., Rabinowitz, D., Rostami, S. and Sullivan, M. (2017) The evolution of superluminous supernova LSQ14mo and its interacting host galaxy system. Astronomy & Astrophysics, 602, 1-22, [A9]. (doi:10.1051/0004-6361/201630163).

de Jaeger, T., González-Gaitán, S., Hamuy, M., Galbany, L., Anderson, J. P., Phillips, M.M., Stritzinger, M.D., Carlberg, R.G., Sullivan, M., Gutiérrez, C.P., Hook, I. M., Howell, D. Andrew, Hsiao, E.Y., Kuncarayakti, H., Ruhlmann-Kleider, V., Folatelli, G., Pritchet, C. and Basa, S. (2017) A Type II supernova Hubble diagram from the CSP-I, SDSS-II, and SNLS surveys. The Astrophysical Journal, 835 (2), [166]. (doi:10.3847/1538-4357/835/2/166).

Hosseinzadeh, Griffin, Arcavi, Iair, Valenti, Stefano, McCully, Curtis, Howell, D. Andrew, Johansson, Joel, Sollerman, Jesper, Pastorello, Andrea, Benetti, Stefano, Cao, Yi, Cenko, S. Bradley, Clubb, Kelsey I., Corsi, Alessandra, Duggan, Gina, Elias-Rosa, Nancy, Filippenko, Alexei V., Fox, Ori D., Fremling, Christoffer, Horesh, Assaf, Karamehmetoglu, Emir, Kasliwal, Mansi, Marion, G.H., Ofek, Eran, Sand, David, Taddia, Francesco, Zheng, WeiKang, Fraser, Morgan, Gal-Yam, Avishay, Inserra, Cosimo, Laher, Russ, Masci, Frank, Rebbapragada, Umaa, Smartt, Stephen, Smith, Ken W., Sullivan, Mark, Surace, Jason and Woźniak, Przemek (2017) Type Ibn supernovae show photometric homogeneity and spectral diversity at maximum light. The Astrophysical Journal, 836 (2), 1-22. (doi:10.3847/1538-4357/836/2/158).

Vreeswijk, Paul M., Leloudas, Giorgos, Gal-Yam, Avishay, De Cia, Annalisa, Perley, Daniel A., Quimby, Robert M., Waldman, Roni, Sullivan, Mark, Yan, Lin, Ofek, Eran O., Fremling, Christoffer, Taddia, Francesco, Sollerman, Jesper, Valenti, Stefano, Arcavi, Iair, Howell, D. Andrew, Filippenko, Alexei V., Cenko, S. Bradley, Yaron, Ofer, Kasliwal, Mansi M., Cao, Yi, Ben-Ami, Sagi, Horesh, Assaf, Rubin, Adam, Lunnan, Ragnhild, Nugent, Peter E., Laher, Russ, Rebbapragada, Umaa D., Woźniak, Przemysław and Kulkarni, Shrinivas R. (2017) On the early-time excess emission in hydrogen-poor superluminous supernovae. The Astrophysical Journal, 835 (1), 1-19. (doi:10.3847/1538-4357/835/1/58).

Tartaglia, L., Sand, D. J., Smartt, S. J., Fraser, M., McCully, C., Anderson, J. P., Arcavi, I., Galbany, L., Gal-Yam, A., Hosseinzadeh, G., Howell, D. A., Inserra, C., Jha, S. W., Lundqvist, P., Maguire, K., Smith, M., Stritzinger, M. and Sullivan, M. (2017) The Progenitor and Early Evolution of the Type IIb SN 2016gkg. The Astrophysical Journal Letters, 836 (1). (doi:10.3847/2041-8213/aa5c7f).

Sullivan, M. , ANTARES Collaboration and H.E.S.S. Collaboration (2017) A polarized fast radio burst at low Galactic latitude. Monthly Notices of the Royal Astronomical Society, 469 (4), 4465-4482. (doi:10.1093/mnras/stx1098).

Arcavi, Iair, Howell, D. Andrew, Kasen, Daniel, Bildsten, Lars, Hosseinzadeh, Griffin, McCully, Curtis, Wong, Zheng Chuen, Katz, Sarah Rebekah, Gal-Yam, Avishay, Sollerman, Jesper, Taddia, Francesco, Leloudas, Giorgos, Fremling, Christoffer, Nugent, Peter E., Horesh, Assaf, Mooley, K., Rumsey, Clare, Cenko, S. Bradley, Graham, Melissa L., Perley, Daniel A., Nakar, Ehud, Shaviv, Nir J., Bromberg, Omer, Shen, Ken J., Ofek, Eran O., Cao, Yi, Wang, Xiaofeng, Huang, Fang, Rui, Liming, Zhang, Tianmeng, Li, Wenxiong, Li, Zhitong, Zhang, Jujia, Valenti, Stefano, Guevel, David, Shappee, Benjamin, Kochanek, Christopher S., Holoien, Thomas W.-S., Filippenko, Alexei V., Fender, Rob, Nyholm, Anders, Yaron, Ofer, Kasliwal, Mansi M., Sullivan, Mark, Blagorodnova, Nadejda, Walters, Richard S., Lunnan, Ragnhild, Khazov, D., Andreoni, Igor, Laher, Russ R., Konidaris, Nick, Woźniak, Przemek and Bue, Brian (2017) Energetic eruptions leading to a peculiar hydrogen-rich explosion of a massive star. Nature, 210-213. (doi:10.1038/nature24030).

Jerkstrand, A., Smartt, S. J., Inserra, C., Nicholl, M., Chen, T.-W., Krühler, T., Sollerman, J., Taubenberger, S., Gal-Yam, A., Kankare, E., Maguire, K., Fraser, M., Valenti, S., Sullivan, M., Cartier, R. and Young, D. R. (2017) Long-duration superluminous supernovae at late times. The Astrophysical Journal, 835 (1), 13. (doi:10.3847/1538-4357/835/1/13).

Hernandez Santisteban, J.V., Knigge, C., Pretorius, M.L., Sullivan, M. and Warner, B. (2018) The space density of post-period minimum cataclysmic variables. Monthly Notices of the Royal Astronomical Society, 473 (3), 3241–3250. (doi:10.1093/mnras/stx2296).

Barbarino, C., Botticella, M.T. and Dall’Ora, M. , et al. (2017) LSQ14efd: observations of the cooling of a shock break-out event in a type Ic Supernova. Monthly Notices of the Royal Astronomical Society, 471 (2), 2463-2480. (doi:10.1093/mnras/stx1709).

Smartt, S.J., Chen, T.-W. and Jerkstrand, A. , et al. (2017) A kilonova as the electromagnetic counterpart to a gravitational-wave source. Nature, 551 (7678), 75-79. (doi:10.1038/nature24303).

Inserra, Cosimo and Angus, Charlotte , DES Collaboration (2017) Studying the ultraviolet spectrum of the first spectroscopically confirmed supernova at redshift two. The Astrophysical Journal. (In Press)

Inserra, Cosimo, Prajs, Szymon, Gutierrez Avendano, Claudia Patrici, Angus, Charlotte, Smith, Mathew and Sullivan, Mark (2018) A statistical approach to identify superluminous supernovae and probe their diversity. The Astrophysical Journal, 854 (175), 1-12. (doi:10.3847/1538-4357/aaaaaa).

Frohmaier, Christopher, Sullivan, Mark, Maguire, Kate and Nugent, Peter E. (2018) The volumetric rate of calcium-rich transients in the local universe. The Astrophysical Journal, 858 (50). (doi:10.3847/1538-4357/aabc0b).

Leibundgut, B. and Sullivan, M. (2018) Type Ia Supernova cosmology. Space Science Reviews, 214 (2), [57]. (doi:10.1007/s11214-018-0491-8).

Inserra, C., Nichol, R.C., Scovacricchi, D., Amiaux, J., Brescia, M., Burigana, C., Cappellaro, E., Carvalho, C.S., Cavuoti, S., Conforti, V., Cuillandre, J.C., Da Silva, A., De Rosa, A., Della Valle, M., Dinis, J., Franceschi, E., Hook, I., Hudelot, P., Jahnke, K., Kitching, T., Kurki-Suonio, H., Lloro, I., Longo, G., Maiorano, E., Maris, M., Rhodes, J.D., Scaramella, R., Smartt, S.J., Sullivan, M., Tao, C., Toledo-Moreo, R., Tereno, I., Trifoglio, M. and Valenziano, L. (2018) Euclid: Superluminous supernovae in the deep survey? Astronomy and Astrophysics, 609, 1-12, [A83]. (doi:10.1051/0004-6361/201731758).

Tartaglia, L., Sand, D.J., Valenti, S., Wyatt, S., Anderson, J.P., Arcavi, I., Ashall, C., Botticella, M.T., Cartier, R., Chen, T.W., Cikota, A., Coulter, D., Valle, M. Della, Foley, R.J., Gal-Yam, A., Galbany, L., Gall, C., Haislip, J.B., Harmanen, J., Hosseinzadeh, G., Howell, D.A., Hsiao, E.Y., Inserra, C., Jha, S.W., Kankare, E., Kilpatrick, C.D., Kouprianov, V.V., Kuncarayakti, H., Maccarone, T.J., Maguire, K., Mattila, S., Mazzali, P.A., McCully, C., Melandri, A., Morrell, N., Phillips, M.M., Pignata, G., Piro, A.L., Prentice, S., Reichart, D.E., Rojas-Bravo, C., Smartt, S.J., Smith, K.W., Sollerman, J., Stritzinger, M.D., Sullivan, M., Taddia, F. and Young, D.R. (2018) The early detection and follow-up of the highly obscured Type II Supernova 2016ija/DLT16am. Astrophysical Journal, 853 (1), [62]. (doi:10.3847/1538-4357/aaa014).

Anderson, J.P., Dessart, L., Gutierrez, C.P., Krühler, T., Galbany, L., Jerkstrand, A., Smartt, S.J., Contreras, C., Morrell, N., Phillips, M.M., Stritzinger, M. D., Hsiao, E.Y., Gonzalez-Gaitan, S., Agliozzo, C., Castellon, S., Chambers, K.C., Chen, T.W., Flewelling, H., Gonzalez, C., Hosseinzadeh, G., Huber, M., Fraser, M., Inserra, C., Kankare, E., Mattila, S., Magnier, E.A., Maguire, K., Lowe, T.B., Sollerman, J., Sullivan, M., Young, D.R. and Valenti, S. (2018) The lowest metallicity type II supernova from the highest mass red-supergiant progenitor. Nature Astronomy. (doi:10.1038/s41550-018-0458-4).

Kim, Young Lo, Smith, Mathew, Sullivan, Mark and Lee, Young Wook (2018) Environmental dependence of type Ia supernova luminosities from a sample without a local-global difference in host star formation. Astrophysical Journal, 854 (1), [24]. (doi:10.3847/1538-4357/aaa127).

Quimby, Robert M., Cia, Annalisa De, Gal-Yam, Avishay, Leloudas, Giorgos, Lunnan, Ragnhild, Perley, Daniel A., Vreeswijk, Paul M., Yan, Lin, Bloom, Joshua S., Cenko, S. Bradley, Cooke, Jeff, Ellis, Richard, Filippenko, Alexei V., Kasliwal, Mansi M., Kleiser, Io K.W., Kulkarni, Shrinivas R., Matheson, Thomas, Nugent, Peter E., Pan, Yen Chen, Silverman, Jeffrey M., Sternberg, Assaf, Sullivan, Mark and Yaron, Ofer (2018) Spectra of hydrogen-poor superluminous supernovae from the Palomar Transient Factory. Astrophysical Journal, 855 (1), [2]. (doi:10.3847/1538-4357/aaac2f).

Maguire, K., Sim, S. A., Shingles, L., Spyromilio, J., Jerkstrand, A., Sullivan, M., Chen, T. W., Cartier, R., Dimitriadis, G., Frohmaier, C., Galbany, L., Gutiérrez, C. P., Hosseinzadeh, G., A. Howell, D., Inserra, C., Rudy, R. and Sollerman, J. (2018) Using late-time optical and near-infrared spectra to constrain Type Ia supernova explosion properties. Monthly Notices of the Royal Astronomical Society, 477 (3), 3567-3582. (doi:10.1093/mnras/sty820).

Gutiérrez, C. P., Anderson, J. P., Sullivan, M., Dessart, L., González-Gaitan, S., Galbany, L., Dimitriadis, G., Arcavi, I., Bufano, F., Chen, T. W., Dennefeld, M., Gromadzki, M., Haislip, J. B., Hosseinzadeh, G., Howell, D. A., Inserra, C., Kankare, E., Leloudas, G., Maguire, K., McCully, C., Morrell, N., Olivares, E. F., Pignata, G., Reichart, D. E., Reynolds, T., Smartt, S. J., Sollerman, J., Taddia, F., Takáts, K., Terreran, G., Valenti, S. and Young, D. R. (2018) Type II supernovae in low-luminosity host galaxies. Monthly Notices of the Royal Astronomical Society, 479 (3), 3232-3253. (doi:10.1093/mnras/sty1581).

De Cia, Annalisa, Gal-Yam, A., Rubin, A., Leloudas, G., Vreeswijk, P., Perley, D. A., Quimby, R., Yan, Lin, Sullivan, M., Flörs, A., Sollerman, J., Bersier, D., Cenko, S. B., Gal-Yam, M., Maguire, K., Ofek, E. O., Prentice, S., Schulze, S., Spyromilio, J., Valenti, S., Arcavi, I., Corsi, A., Howell, D. A., Mazzali, P., Kasliwal, M. M., Taddia, F. and Yaron, O. (2018) Light curves of hydrogen-poor superluminous supernovae from the palomar transient factory. Astrophysical Journal, 860 (2), [100]. (doi:10.3847/1538-4357/aab9b6).

Balland, C., Cellier-Holzem, F., Lidman, C., Astier, P., Betoule, M., Carlberg, R.G., Conley, A., Ellis, R.S., Guy, J., Hardin, D., Hook, I.M., Howell, D.A., Pain, R., Pritchet, C.J., Regnault, N., Sullivan, M., Arsenijevic, V., Baumont, S., El-Hage, P., Fabbro, S., Fouchez, D., Mitra, A., Möller, A., Mourão, A.M., Neveu, J., Roman, M. and Ruhlmann-Kleider, V. (2018) The ESO's VLT type Ia supernova spectral set of the final two years of SNLS. Astronomy and Astrophysics, 614, [A134]. (doi:10.1051/0004-6361/201731924).

Anderson, J.P., Pessi, P.J., Dessart, L., Inserra, C., Hiramatsu, D., Taggart, K., Smartt, S.J., Leloudas, G., Chen, T.-W., Moller, A., Roy, R., Schulze, S., Perley, D.A., Selsing, J., Prentice, S.J., Gal‐Yam, A., Angus, C.R., Arcavi, I., Ashall, C., Bulla, M., Bray, C., Burke, J., Callis, E., Cartier, R., Chang, S-W., Chambers, K., Clark, P., Denneau, L., Dennefeld, M., Flewelling, H., Fraser, M., Galbany, L., Gromadzki, M., Gutierrez, C.P., Heinze, A., Hosseinzadeh, G., Howell, D.A., Hsiao, E.Y., Kankare, E., Kostrzewa-Rutkowska, Z., Magnier, E.A., Maguire, K., Mazzali, P., McBrien, O., McCully, C., Morrell, N., Lowe, T.B., Onken, C.A., Onori, F., Phillips, M.M., Rest, A., Ridden-Harper, R., Ruiter, A.J., Sand, D. J., Smith, K.W., Smith, M., Stalder, B., Stritzinger, M.D., Sullivan, M., Tonry, J.L., Tucker, B.E., Valenti, S., Wainscoat, R., Waters, C.Z., Wolf, C. and Young, D. (2018) A nearby superluminous supernova with a long pre-maximum ‘plateau’ and strong Cii features. Astronomy & Astrophysics, 620, 1-17. (doi:10.1051/0004-6361/201833725).

Roman, M., Hardin, D., Betoule, M., Astier, P., Balland, C., Ellis, R. S., Fabbro, S., Guy, J., Hook, I., Howell, D. A., Lidman, C., Mitra, A., Möller, A., Mourão, A. M., Neveu, J., Palanque-Delabrouille, N., Pritchet, C. J., Regnault, N., Ruhlmann-Kleider, V., Saunders, C. and Sullivan, M. (2018) Dependence of Type Ia supernova luminosities on their local environment. Astronomy and Astrophysics, 615, [A68]. (doi:10.1051/0004-6361/201731425).

De, K., Kasliwal, M. M., Ofek, E. O., Moriya, T. J., Burke, J., Cao, Y., Cenko, S. B., Doran, G. B., Duggan, G. E., Fender, R. P., Fransson, C., Gal-Yam, A., Horesh, A., Kulkarni, S. R., Laher, R. R., Lunnan, R., Manulis, I., Masci, F., Mazzali, P. A., Nugent, P. E., Perley, D. A., Petrushevska, T., Piro, A. L., Rumsey, C., Sollerman, J., Sullivan, M. and Taddia, F. (2018) A hot and fast ultra-stripped supernova that likely formed a compact neutron star binary. Science, 362 (6411), 201-206. (doi:10.1126/science.aas8693).

Graham, M. L., Harris, C.E., Nugent, P. E., Maguire, K., Sullivan, M., Smith, M., Valenti, S., Goobar, A., Fox, O.D., Shen, Ken J., Kelly, P.L., McCully, C., Brink, Thomas G. and Filippenko, A.V. (2019) Delayed circumstellar interaction for Type Ia SN 2015cp revealed by an HST ultraviolet imaging survey. The Astrophysical Journal, 871. (doi:10.3847/1538-4357/aaf41e).

DES Collaboration (2019) First cosmology results using type IA Supernovae from the Dark Energy Survey: Effects of chromatic corrections to supernova photometry on measurements of cosmological parameters. Monthly Notices of the Royal Astronomical Society, 485 (4), 5329-5344. (doi:10.1093/mnras/stz619).

Frohmaier, C., Sullivan, M., Nugent, P.E., Dimitriadis, G., Bloom, J.S., Cenko, S.B., Kasliwal, M.M., Kulkarni, S.R., Maguire, K., Ofek, E. O., Poznanski, D., Quimby, R.M. and Smith, M. (2019) The volumetric rate of normal type Ia supernovae in the local universe discovered by the Palomar Transient Factory. Monthly Notices of the Royal Astronomical Society, 486 (2), 2308–2320. (doi:10.1093/mnras/stz807).

Bostroem, K. Azalee, Valenti, Stefano, Horesh, Assaf, Morozova, Viktoriya, Kuin, N. Paul M., Wyatt, Samuel, Jerkstrand, Anders, Sand, David J., Lundquist, Michael, Smith, Mathew, Sullivan, Mark, Hosseinzadeh, Griffin, Arcavi, Iair, Callis, Emma, Cartier, Régis, Gal-yam, Avishay, Galbany, Lluís, Gutiérrez, Claudia, Howell, D Andrew, Inserra, Cosimo, Kankare, Erkki, López, Kristhell Marisol, Mccully, Curtis, Pignata, Giuliano, Piro, Anthony L., Rodríguez, Ósmar, Smartt, Stephen J., Smith, Kenneth W., Yaron, Ofer and Young, David R. (2019) Signatures of circumstellar interaction in the Type IIL Supernova ASASSN-15oz. Monthly Notices of the Royal Astronomical Society. (doi:10.1093/mnras/stz570).

Smith, Mathew, Kessler, R., Brout, D. and D’Andrea, C.B. , DES Collaboration (2019) First cosmology results using Type Ia supernova from the Dark Energy Survey: simulations to correct supernova distance biases. Monthly Notices of the Royal Astronomical Society, 485 (1), 1171-1187. (doi:10.1093/mnras/stz463).

Prentice, S.J., Ashall, C. and James, P.A. , et al. (2018) Investigating the properties of stripped-envelope supernovae; what are the implications for their progenitors? Monthly Notices of the Royal Astronomical Society, 485, 1559-1578. (doi:10.1093/mnras/sty3399). (In Press)

Smith, Mathew, Sullivan, Mark and Childress, Michael , The DES Collaboration (2019) First cosmology results using SNe Ia from the Dark Energy Survey: analysis, systematic uncertainties, and validation. The Astrophysical Journal, 874 (2), 1-30, [150]. (doi:10.3847/1538-4357/ab08a0).

Abbott, T.M.C., Allam, S. and Andersen, P. , The DES Collaboration (2019) First cosmology results using Type Ia Supernovae from the Dark Energy Survey: Constraints on cosmological parameters. The Astrophysical Journal Letters, 872 (2), [L30]. (doi:10.3847/2041-8213/ab04fa).

Sullivan, Mark, Smith, Mathew and Childress, Michael , The DES Collaboration (2019) First cosmology results using Type Ia Supernovae from the Dark Energy Survey: Photometric pipeline and light-curve data release. The Astrophysical Journal, 874, [106]. (doi:10.3847/1538-4357/ab06c1).

Macaulay, E, Smith, Mathew, Sullivan, Mark and Wiseman, Philip , The DES Collaboration (2019) First cosmological results using Type Ia supernovae from the Dark Energy Survey: measurement of the Hubble constant. Monthly Notices of the Royal Astronomical Society, 486 (2), 2184-2196. (doi:10.1093/mnras/stz978).

Vincenzi, M., Sullivan, M., Firth, R.E., Gutierrez, C.P., Frohmaier, C. and Smith, M. (2019) Spectrophotometric templates for core collapse supernovae and their application in simulations of time-domain surveys. Monthly Notices of the Royal Astronomical Society. (doi:10.1093/mnras/stz2448).

Jha, Saurabh W., Maguire, Kate and Sullivan, Mark (2019) Observational properties of thermonuclear supernovae. Nature Astronomy, 3 (8), 706-716. (doi:10.1038/s41550-019-0858-0).

Frohmaier, C, Angus, C R, Vincenzi, M, Sullivan, M, Smith, M, Nugent, P E, Cenko, S B, Gal-Yam, A, Kulkarni, S R, Law, N M and Quimby, R M (2021) From core collapse to superluminous: the rates of massive stellar explosions from the Palomar Transient Factory. Monthly Notices of the Royal Astronomical Society, 500 (4), 5142-5158. (doi:10.1093/mnras/staa3607).

Hodgkin, S. T., Harrison, D. L., Breedt, E., Wevers, T., Rixon, G., Delgado, A., Yoldas, A., Kostrzewa-Rutkowska, Z., Wyrzykowski, Ł., Leeuwen, M. van, Blagorodnova, N., Campbell, H., Eappachen, D., Fraser, M., Ihanec, N., Koposov, S. E., Kruszyńska, K., Marton, G., Rybicki, K. A., Brown, A. G. A., Burgess, P. W., Busso, G., Cowell, S., Angeli, F. De, Diener, C., Evans, D. W., Gilmore, G., Holland, G., Jonker, P. G., Leeuwen, F. van, Mignard, F., Osborne, P. J., Portell, J., Prusti, T., Richards, P. J., Riello, M., Seabroke, G. M., Walton, N. A., Ábrahám, Péter, Altavilla, G., Baker, S. G., Bastian, U., O'Brien, P., Bruijne, J. de, Butterley, T., Carrasco, J. M., Castañeda, J., Clark, J. S., Clementini, G., Copperwheat, C. M., Cropper, M., Damljanovic, G., Davidson, M., Davis, C. J., Dennefeld, M., Dhillon, V. S., Dolding, C., Dominik, M., Esquej, P., Eyer, L., Fabricius, C., Fridman, M., Froebrich, D., Garralda, N., Gomboc, A., González-Vidal, J. J., Guerra, R., Hambly, N. C., Hardy, L. K., Holl, B., Hourihane, A., Japelj, J., Kann, D. A., Kiss, C., Knigge, C., Kolb, U., Komossa, S., Kóspál, Á., Kovács, G., Kun, M., Leto, G., Lewis, F., Littlefair, S. P., Mahabal, A. A., Mundell, C. G., Nagy, Z., Padeletti, D., Palaversa, L., Pigulski, A., Pretorius, M. L., Reeven, W. van, Ribeiro, V. A. R. M., Roelens, M., Rowell, N., Schartel, N., Scholz, A., Schwope, A., Sipőcz, B. M., Smartt, S. J., Smith, M. D., Serraller, I., Steeghs, D., Sullivan, M., Szabados, L., Szegedi-Elek, E., Tisserand, P., Tomasella, L., Velzen, S. van, Whitelock, P. A, Wilson, R. W. and Young, D. R. (2021) Gaia photometric science alerts. Monthly Notices of the Royal Astronomical Society.

Sullivan, Mark, Carrick, Jonathan E., Hook, Isobel M., Swann, Elizabeth, Boone, Kyle, Frohmaier, C. and Kim, A.G. (2021) Optimizing a magnitude-limited spectroscopic training sample for photometric classification of supernovae. Monthly Notices of the Royal Astronomical Society, 508 (1), 1-18. (doi:10.1093/mnras/stab2343).

Schulze, Steve, Yaron, Ofer, Sollerman, Jesper, Leloudas, Giorgos, Gal, Amit, Wright, Angus H., Lunnan, Ragnhild, Gal-Yam, Avishay, Ofek, Eran O., Perley, Daniel A., Filippenko, Alexei V., Kasliwal, Mansi M., Kulkarni, Shri R., Nugent, Peter E., Quimby, Robert M., Sullivan, Mark, Linn Strothjohann, Nora, Arcavi, Iair, Ben-Ami, Sagi, Bianco, Federica, Bloom, Joshua S., De, Kishalay, Fraser, Morgan, Fremling, Christoffer U., Horesh, Assaf, Johansson, Joel, Kelly, Patrick L., Knezevic, Sladjana, Maguire, Kate, Nyholm, Anders, Semeli Papadogiannakis, 2, Petrushevska, Tanja, Rubin, Adam, Yan, Lin, Yang, Yi, Adams, Scott M., Bufano, Filomena, Clubb, Kelsey I., Foley, Ryan J., Green, Yoav, Harmanen, Jussi, Ho, Anna Y. Q., Hook, Isobel M., Hosseinzadeh, Griffin, Howell, D. Andrew, Kong, Albert K. H., Kotak, Rubina, Matheson, Thomas, McCully, Curtis, Milisavljevic, Dan, Pan, Yen-Chen, Poznanski, Dovi, Shivvers, Isaac and van Velzen, Sjoert (2021) The Palomar Transient Factory Core-Collapse Supernova Host-Galaxy Sample. I. Host-Galaxy Distribution Functions and Environment-Dependence of CCSNe. The Astrophysical Journal Supplement Series, 255 (2), [29]. (doi:10.3847/1538-4365/abff5e).

Müller-Bravo, Tomás E., Sullivan, Mark, Smith, Mathew, Frohmaier, Chris, Gutiérrez, Claudia P., Wiseman, Philip and Zontou, Zoe (2021) PISCOLA: a data-driven transient light-curve fitter. Monthly Notices of the Royal Astronomical Society. (doi:10.1093/mnras/stab3065).

Clark, Peter, Maguire, Kate, Bulla, Mattia, Galbany, Lluís, Sullivan, Mark, Anderson, Joseph P. and Smartt, Stephen J. (2021) Probing the Progenitors of Type Ia Supernovae using circumstellar material interaction signatures. Monthly Notices of the Royal Astronomical Society, 507. (doi:10.1093/mnras/stab2038).

Wiseman, P., Sullivan, M., Smith, M., Frohmaier, C., Vincenzi, M., Graur, O., Popovic, B., Armstrong, P., Brout, D., Davis, T. M., Galbany, L., Hinton, S. R., Kelsey, L., Kessler, R., Lidman, C., Möller, A., Nichol, R. C., Rose, B., Scolnic, D., Toy, M., Zontou, Z., Asorey, J., Carollo, D., Glazebrook, K., Lewis, G. F., Tucker, B. E., Abbott, T. M. C., Aguena, M., Allam, S., Andrade-Oliveira, F., Annis, J., Bacon, D., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Costanzi, M., da Costa, L. N., Pereira, M. E. S., Desai, S., Diehl, H. T., Doel, P., Everett, S., Ferrero, I., Flaugher, B., Fosalba, P., Frieman, J., García-Bellido, J., Gaztanaga, E., Giannantonio, T., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hollowood, D. L., Honscheid, K., Hoyle, B., James, D. J., Krause, E., Kuehn, K., Kuropatkin, N., Maia, M. A. G., Marshall, J. L., Martini, P., Menanteau, F., Miquel, R., Morgan, R., Ogando, R. L. C., Palmese, A., Paz-Chinchón, F., Petravick, D., Pieres, A., Plazas Malagón, A. A., Romer, A. K., Sanchez, E., Scarpine, V., Schubnell, M., Serrano, S., Sevilla-Noarbe, I., Soares-Santos, M., Suchyta, E., Swanson, M. E. C., Tarle, G., Thomas, D., To, C., Varga, T. N., Walker, A. R. and Collaboration, DES (2021) Rates and delay times of Type Ia supernovae in the Dark Energy Survey. Monthly Notices of the Royal Astronomical Society, 506 (3), 3330–3348. (doi:10.1093/mnras/stab1943).

Galbany, L., Ashall, C., Höflich, P., González-Gaitán, S., Taubenberger, S., Stritzinger, M., Hsiao, E. Y., Mazzali, P., Baron, E., Blondin, S., Bose, S., Bulla, M., Burke, J. F., Burns, C. R., Cartier, R., Della Valle, M., Diamond, T. R., Gutiérrez, C. P., Harmanen, J., Hiramatsu, D., Holoien, T. W.-S., Hosseinzadeh, G., Howell, D. Andrew, Huang, Y., Inserra, C., de Jaeger, T., Jha, S. W., Kangas, T., Kromer, M., Lyman, J. D., Maguire, K., Marion, G. Howie, Milisavljevic, D., Prentice, S. J., Razza, A., Reynolds, T. M., Sand, D. J., Shappee, B. J., Shekhar, R., Smartt, S. J., Stassun, K. G., Sullivan, M., Valenti, S., Villanueva, S., Wang, X., Wheeler, J. Craig, Zhai, Q. and Zhang, J. (2019) Evidence for a Chandrasekhar-mass explosion in the Ca-strong 1991bg-like type Ia supernova 2016hnk. Astronomy & Astrophysics, 630. (doi:10.1051/0004-6361/201935537).

Clark, Peter, Maguire, Kate, Inserra, Cosimo, Prentice, Simon, Smartt, Stephen J., Contreras, Carlos, Hossenizadeh, Griffin, Hsiao, Eric Y., Kankare, Erkki, Kasliwal, Mansi, Nugent, Peter, Shahbandeh, Melissa, Baltay, Charles, Rabinowitz, David, Arcavi, Iair, Ashall, Chris, Burns, Christopher R., Callis, Emma, Chen, Ting-Wan, Diamond, Tiara, Fraser, Morgan, Howell, D. Andrew, Karamehmetoglu, Emir, Kotak, Rubina, Lyman, Joseph, Morrell, Nidia, Phillips, Mark, Pignata, Giuliano, Pursiainen, Miika, Sollerman, Jesper, Stritzinger, Maximilian, Sullivan, Mark and Young, David (2020) LSQ13ddu: a rapidly evolving stripped-envelope supernova with early circumstellar interaction signatures. Monthly Notices of the Royal Astronomical Society, 492 (2), 2208-2228. (doi:10.1093/mnras/stz3598).

Müller-Bravo, Tomás E., Gutiérrez, Claudia P., Sullivan, Mark, Jerkstrand, Anders, Anderson, Joseph P., González-Gaitán, Santiago, Sollerman, Jesper, Arcavi, Iair, Burke, Jamison, Galbany, Lluís, Gal-Yam, Avishay, Gromadzki, Mariusz, Hiramatsu, Daichi, Hosseinzadeh, Griffin, Howell, D. Andrew, Inserra, Cosimo, Kankare, Erki, Kozyreva, Alexandra, McCully, Curtis, Nicholl, Matt, Smartt, Stephen, Valenti, Stefano and Young, Dave R. (2020) The low-luminosity Type II SN 2016aqf: a well-monitored spectral evolution of the Ni/Fe abundance ratio. Monthly Notices of the Royal Astronomical Society, 497 (1), 361-377. (doi:10.1093/mnras/staa1932).

The Dark Energy Survey Collaboration (2021) Understanding the extreme luminosity of DES14X2fna. Monthly Notices of the Royal Astronomical Society, 505 (3), 3950-3967. (doi:10.1093/mnras/stab1478).

The Dark Energy Survey Collaboration (2021) The Dark Energy Survey supernova programme: modelling selection efficiency and observed core-collapse supernova contamination. Monthly Notices of the Royal Astronomical Society, 505 (2), 2819-2839. (doi:10.1093/mnras/stab1353).

Angus, C. R., Sullivan, M., Inserra, C., Wiseman, P., D'Andrea, C. B., Nichol, R. C., Galbany, L., Childress, M., Asorey, J., Casas, R., Castander, F. J., Curtin, C., Frohmaier, C., Glazebrook, K., Gruen, D., Gutierrez, C., Kessler, R., Kim, A. G., Lidman, C., Macaulay, E., Nugent, P., Pursiainen, M., Sako, M., Soares-Santos, M., Avila, S., Bertin, E., Buckley-Geer, E., Burke, D. L., Carnero Rosell, A., Carretero, J., da Costa, L. N., De Vicente, J., Desai, S., Diehl, H. T., Doel, P., Eifler, T. F., Flaugher, B., Fosalba, P., Frieman, J., García-Bellido, J., Gruendl, R. A., Gschwend, J., Hartley, W. G., Hollowood, D. L., Honscheid, K., Hoyle, B., Kuehn, K., Kuropatkin, N., Lahav, O. and Lima, M. , The Dark Energy Survey Collaboration (2019) Superluminous supernovae from the Dark Energy Survey. Monthly Notices of the Royal Astronomical Society, 487 (2), 2215-2241. (doi:10.1093/mnras/stz1321).

Inserra, C., Sullivan, M., Angus, C. R., Macaulay, E., Nichol, R. C., Frohmaier, C., Gutiérrez, C. P., Vicenzi, M., Möller, A., Brout, D., D'Andrea, C. B., Galbany, L., Kessler, R., Kim, A. G., Pursiainen, M., Scolnic, D., Wiseman, P., Annis, J., Avila, S., Bertin, E., Burke, D. L., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Castander, F. J., Cawthon, R., Desai, S., Diehl, H. T., Eifler, T. F., Finley, D. A., Flaugher, B., Fosalba, P., Frieman, J., Garcia-Bellido, J., Gaztanaga, E., Gerdes, D. W., Giannantonio, T., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hollowood, D. L., Honscheid, K., Krause, E., Kuehn, K., Kuropatkin, N., Lidman, C., Lima, M., Maia, M. A. G. and Swann, E. , The Dark Energy Survey Collaboration (2021) The first Hubble diagram and cosmological constraints using superluminous supernovae. Monthly Notices of the Royal Astronomical Society, 504 (2), 2535-2549. (doi:10.1093/mnras/stab978).

Kelsey, L., Sullivan, M., Wiseman, P., Brout, D., Frohmaier, C., Galbany, L., Grayling, M., Gutiérrez, C. P., Hinton, S. R., Kessler, R., Lidman, C., Möller, A., Sako, M., Scolnic, D., Uddin, S. A., Vincenzi, M., Aguena, M., Allam, S., Annis, J., Avila, S., Bertin, E., Burke, D. L., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Castander, F. J., Costanzi, M., da Costa, L. N., Desai, S., Diehl, H. T., Doel, P., Everett, S., Ferrero, I., Ferté, A., Flaugher, B., Fosalba, P., García-Bellido, J., Gerdes, D. W., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hollowood, D. L., Honscheid, K., Kim, A. G., Kuehn, K., Kuropatkin, N., Lahav, O., Lima, M. and Martini, P. , The Dark Energy Survey Collaboration (2020) The effect of environment on Type Ia supernovae in the Dark Energy Survey three-year cosmological sample. Monthly Notices of the Royal Astronomical Society, 501 (4), 4861-4876. (doi:10.1093/mnras/staa3924).

Hodgkin, S. T., Wevers, T., Rixon, G., Delgado, A., Yoldas, A., Kostrzewa-Rutkowska, Z., Wyrzykowski, Ł., van Leeuwen, M., Blagorodnova, N., Eappachen, D., Fraser, M., Ihanec, N., Koposov, S. E., Kruszyńska, K., Marton, G., Rybicki, K. A., Burgess, P. W., Busso, G., Cowell, S., De Angeli, F., Diener, C., Gilmore, G., Holland, G., Jonker, P. G., van Leeuwen, F., Mignard, F., Portell, J., Prusti, T., Riello, M., Seabroke, G. M., Walton, N. A., Ábrahám, P., Altavilla, G., Bastian, U., O'Brien, P., de Bruijne, J., Butterley, T., Castañeda, J., Clementini, G., Copperwheat, C. M., Cropper, M., Damljanovic, G., Davidson, M., Dennefeld, M., Dhillon, V. S., Dolding, C., Dominik, M., Esquej, P., Eyer, L., Fabricius, C., Fridman, M., Froebrich, D., Garralda, N., Gomboc, A., González-Vidal, J. J., Guerra, R., Hambly, N. C., Hardy, L. K., Holl, B., Hourihane, A., Japelj, J., Kann, D. A., Kiss, C., Knigge, C., Kolb, U., Komossa, S., Kóspál, Á., Kovács, G., Kun, M., Leto, G., Littlefair, S. P., Mahabal, A. A., Mundell, C. G., Nagy, Z., Padeletti, D., Palaversa, L., Pigulski, A., Pretorius, M. L., van Reeven, W., Ribeiro, V. A. R. M., Roelens, M., Rowell, N., Schartel, N., Scholz, A., Schwope, A., Sipőcz, B. M., Smartt, S. J., Serraller, I., Steeghs, D., Sullivan, M., Szabados, L., Szegedi-Elek, E., Tisserand, P., Tomasella, L., van Velzen, S. and Whitelock, P. A. (2021) Gaia Early Data Release 3. Gaia photometric science alerts. Astronomy & Astrophysics, 652. (doi:10.1051/0004-6361/202140735).

Gutiérrez, C. P., Bersten, M. C., Orellana, M., Pastorello, A., Ertini, K., Folatelli, G., Pignata, G., Smartt, S., Sullivan, M., Pursiainen, M., Inserra, C., Elias-Rosa, N., Fraser, M., Kankare, E., Moran, S., Reguitti, A., Reynolds, T. M., Stritzinger, M., Burke, J., Frohmaier, C., Galbany, L., Hiramatsu, D., Kuncarayakti, H., Mattila, S., Müller-Bravo, T. and Pellegrino, C. (2021) The double-peaked Type Ic supernova 2019cad: another SN 2005bf-like object. Monthly Notices of the Royal Astronomical Society, 504 (4), 4907-4922. (doi:10.1093/mnras/stab1009).

Pessi, P. J., Fraser, M., Ertini, K., Martinez, L., Hoeflich, P., Hsiao, E. Y., Folatelli, G., Ashall, C., Bersten, M., Englert, B., Benetti, S., Bunzel, A., Contreras, C., Elias-Rosa, N., Falco, E., Galbany, L., Kirshner, R. P., Lyman, J. D., Marion, G. H., Mattila, S., Maund, J., Morrell, N., Serón, J., Stritzinger, M., Shahbandeh, M., Sullivan, M. and Suntzeff, N. B. (2021) SN 2013ai: A Link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae. The Astrophysical Journal, 909 (2), 145. (doi:10.3847/1538-4357/abdd36).

Swann, E., Sullivan, M., Carrick, J., Hoenig, S., Hook, I., Kotak, R., Maguire, Kate, Nichol, R. and Smartt, S. (2019) 4MOST Consortium Survey 10: The Time-Domain Extragalactic Survey (TiDES). The Messenger, 175, 58-61. (doi:10.18727/0722-6691/5129).

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Published: 8 March 2019
Illustration
The Photon Shop. Photo credit: Kasia Grabska

Researchers from the University of Southampton demonstrated the science of light through a pop-up 'Photon Shop' at the Light Up Poole! Art Festival.

Scientists from Physics and Astronomy, Chemistry and the Optoelectronics Research Centre engaged over 1,000 visitors with hands-on activities at the store on Poole High Street across the three evenings of the digital light art festival.

Hundreds of pupils and teachers at Lytchett Minster and Poole High Schools were also introduced to the world of photonics in two Light Express Roadshow performances delivered by University staff and students.

Pearl John, Physics and Astronomy Public Engagement Leader, said: "Working with light plays a pivotal role in a lot of pioneering research at the University of Southampton and it has been exciting to see the enthusiasm from people of all ages who made scientific discoveries in our activities during the Light Up Poole! Art Festival."

Optical engineers, astrophysicists and chemists contributed to five interactive exhibits from February 21st to 23rd at the Photon Shop, which was funded by an Institute of Physics Public Engagement Grant and supported by the EPSRC Future Photonics Hub, ADEPT, the STFC-funded Planeterrella, the NERC-funded Aurora Zoo research, the Royal Academy of Engineering and the South East Physics Network.

Visitors identified different types of aurora from the Northern Lights as part of the Aurora Zoo activity with Dr Daniel Whiter, which contributed to a larger study helping researchers better understand the processes of the upper atmosphere and space weather that can damage satellites, GPS and telecommunications.

The Light Wave exhibit with Callum Stirling and Andrei Donko encouraged visitors to send music down a laser beam and learn how the internet sends information from one place to another as researchers demonstrated their application of fibre optics and low-powered lasers.

Dr Jo Corsi's team introduced visitors to the process of electrodeposition in the creation of semiconductor materials while making their own gold fingerprints. Dr Sadie Jones's #Sotonastroart hands-on activity enabled visitors to create artwork inspired by research materials and methods used by astrophysicists exploring Dark Energy.

Around 40,000 visitors enjoyed digital light art spectacles in the broader programme of the Light Up Poole! festival. The event, which was produced by Audacious CIC in partnership with several leading cultural organisations, included a Light Art Symposium that explored creative and commercial opportunities with Poole's business, tourism and technology communities.

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Published: 5 March 2019
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Dr Muddassar Rashid

Pioneering research at the University of Southampton has levitated nanoparticles using a Nobel Prize winning technique to an unprecedented level of sensing capability.

The experiment, which suspended glass nanoparticles using a method known as optical tweezers, observed and measured the material wobbling much like a spinning top rotating on a table. The findings could enable ultra-precise sensing with potential to detect the torque of a single nuclear spin, something yet to be reached by any experiment.

Scientists described the implementation and control of this precession motion in a paper for the Physical Review Letters that has been highlighted as an Editors' Suggestion.

Research Fellow Dr Muddassar Rashid says, "Different types of control of these trapped nanoparticles have been demonstrated experimentally in recent years, making such systems promising candidates to explore quantum mechanical features at an unprecedented large-mass scale and could yield precise sensors such as state-of-the-art gyroscopes.

"We have discovered that these levitated nanoparticles not only demonstrate translation and rotation motion but they also exhibit precession motion, a wobble of one of the axes about which the object is rotating, due to the optical force of light generating a torque on the particle.

"The research team here at Southampton worked tirelessly to characterise and understand the precession motion from both an experimental and theoretical standpoint. The analysis is complicated and requires great care, but the promotion of this work in Physical Review Letters highlights its importance and broad impact".

The optical tweezers technique was recognised in the Nobel Prize give to Arthur Ashkin in October 2018. The method uses highly focused light, producing a focal point, where particles are trapped and using properties of light can be controlled and their motion detected. This presents scientists with a powerful toolkit to study fundamental physics at the nanoscale.

"From a fundamental research point of view, we require new and novel tools to measure phenomena in the lab," Muddassar says. "Thus, this precession motion of a levitated particle becomes a tool, when coupled to other systems or forces, which can be used to detect extremely weak changes that we find in nature, for example forces generated by nuclear spins of the nucleus of the atoms. I hope our work will encourage others to utilise this approach for real-world applications and carry out further novel experiments in study of natural phenomena."

These experiments were part of a larger series of projects in Southampton's Quantum Nanophysics and Matter Wave Interferometry Group, led by Professor Hendrik Ulbricht, which are designed to detect weak forces in nature that may help address some of the most foundational questions in quantum physics.

"Our next steps will be to use this precession motion to carry out proof-of-principle experiments to detect electrical and magnetic forces, and maybe even Earth's gravity," Muddassar explains. "One of the critical requirements to this work is being able to control the shape of the nanoparticles, so we will be focusing on the ideal shapes that we can use for generating the desired precession motion."

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Publications

Ozbey Arabaci, Mehtap, Kalemci, E., Diner, T., Bailyn, Charles D., Altamirano, Diego and Ak, T. (2022) Multiwavelength observations of MAXI J1820+070 during its outburst decay and subsequent mini-outburst. Monthly Notices of the Royal Astronomical Society, 514 (3), 3894 - 3909. (doi:10.1093/mnras/stac1574).

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Published: 11 February 2019
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University of Southampton’s School of Physics and Astronomy has been awarded Juno Champion Status

The Institute of Physics has awarded Juno Champion status to the University of Southampton’s School of Physics and Astronomy. The accolade recognises the School’s actions to develop a working culture in which students and staff can achieve their full potential, and follows the Athena SWAN Silver award that the School received in 2018.

Physics and Astronomy is committed to addressing the under-representation of women in its subject and has been embedding Project Juno’s six principles into its environment since being recognised with Practitioner status in 2017. The School has demonstrated open and supportive departmental systems and structures, improved appointment and selection processes and is home to a highly active Women’s Physics Network.

There are four levels of Juno awards, with Champion status representing a third tier that is fulfilling a detailed action plan.

Professor Mark Sullivan, Head of Physics and Astronomy, says: “A positive environment for working and learning is key to the success of our School and I am delighted that everyone’s dedicated work embedding the Project Juno principles has been rewarded with Champion status. I look forward to working with our team in the coming months to advance more successful and innovative practice as we work towards Juno Excellence.â€?

Physics and Astronomy has improved recruitment processes and led positive public engagement and outreach since the awarding of an Athena SWAN Bronze Award in 2014. It has also introduced a number of local schemes, such as a core hours policy, that seek to enhance the University provision.

The Women’s Physics Network was set up in 2014 by PhD students, undergraduate students and academic staff. The Network has organised lectures by leading female researchers, educational workshops for both students and staff, and raised awareness of the importance of equality through a variety of social events. The Network was recognised for its ‘exceptional contribution’ with a Vice-Chancellor’s Award in 2017.

Professor Paul Hardaker, Institute of Physics Chief Executive Officer, says: “The IOP is delighted that the School of Physics and Astronomy at the University of Southampton has become a Project Juno Champion. The School demonstrated clear leadership and a genuine commitment to addressing gender inequality and our Juno Assessment Panel commended them for their sustained efforts to effect change across the whole School. We look forward to publicly recognising their achievement at our Awards Ceremony later this year.â€?

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Publications

Muskens, Otto, Ajia, Idris, Ou, Jun-Yu, Dinsdale, Nicholas Joseph, Singh, Haobijam, Chen-Sverre, Theo, Liu, Tongjun and Zheludev, Nikolai (2021) Dataset for: Gigahertz nano-optomechanical resonances in a dielectric SiC-membrane metasurface array. University of Southampton doi:10.5258/SOTON/D1812 [Dataset]

Ajia, Idris A., Ou, Jun-Yu, Singh, H. Johnson, Chen-Sverre, Theo, Liu, Tongjun, Zheludev, Nikolay I. and Muskens, Otto L. (2021) Gigahertz nano-optomechanical resonances in a dielectric SiC-membrane metasurface array. Nano Letters, 21 (11), 4563 - 4569. (doi:10.1021/acs.nanolett.1c00205).

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Published: 22 January 2019
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Winners of this year's Southampton Schools Physicist of the Year awards.

The University of Southampton celebrated the city’s brightest young minds at the annual Southampton Schools Physicist of the Year awards.

The awards scheme, which is a collaboration with the Ogden Trust, highlights the talent of exceptional pupils studying Physics across Southampton’s schools.

Over 25 Year 11 pupils received awards at the sixth annual event on Highfield Campus, supported by the many teachers and parents that had nominated them for their first-rate effort during the year.

Dr Sadie Jones, event organiser and Outreach Leader in the School of Physics and Astronomy, said: “This award ceremony is a great opportunity for the students and their families to celebrate their successes and also get a taster for Physics at university.â€?

The Ogden Trust promotes the teaching and learning of physics by working collaboratively with schools and universities. The trust aims to increase the uptake of physics for all post-16, particularly for under-represented pupils, and fully funded last month’s ceremony which included a buffet dinner.

All prize-winners received a certificate and gift voucher as they automatically became part of the Ogden Trust alumni community.

In addition to the awards, Public Engagement Leader Pearl John and PhD students Tom Jefferson-Brain, Angela De Fazio and Tiberius Georgescu presented a Light Express roadshow. The interactive show, which tours schools and colleges in the south of England, presents its audience with a series of visual demonstrations exploring the physics of science and light behind the internet developed at the University.

The University of Southampton is committed to delivering a wide-ranging outreach program with Key Stage activities for both students and teachers. Find out more at the School of Physics and Astronomy’s outreach and public engagement pages.

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