The University of Southampton
×
Physics and Astronomy

Published: 18 December 2017
Illustration
Dr Poshak Gandhi's work made the cover of Nature Astronomy magazine

Staff and students from Physics and Astronomy at the University of Southampton often feature in the media for their research, achievements and expert opinion. Here’s a round-up of some of our most recent achievements:

Gravitational waves

The direct detection of gravitational waves from a collision of two neutron stars featured on the cover of the journal Nature. Professor Mark Sullivan and Postdoctoral Fellow Dr Cosimo Inserra were part of the ePESSTO collaboration which led the electromagnetic observation of this new neutron star event.

In Our Time

Professor Nick Evans featured on an expert panel exploring the work of Carl Friedrich Gauss on BBC Radio 4’s In Our Time.

Gauss is widely viewed as one of the greatest mathematicians of all time, with achievements in his lifetime including the first electromagnetic telegraph and proving the fundamental theorem of algebra.

Listen to the full episode here.

Black hole beams

Research carried out by astronomer Dr Poshak Gandhi made the cover of this month’s online version of Nature Astronomy magazine.

Dr Gandhi was afforded the rare honour thanks to his journal paper investigating relativistic jets – ultra-powerful beams of energy that blast out from the vicinity of black holes. The research measured how quickly these beams ‘switch on’ and start shining brightly once they are launched.

White dwarf stars

A discovery surrounding the ‘feeding habits’ of white dwarf stars has been published in the journal Nature, revealing for the first time that the stars slowly grow by gaining mass in magnetically controlled sudden bursts.

The research, led by former Southampton PhD student Dr Simone Scaringi and co-authored by Physics and Astronomy’s Professor Christian Knigge, examined several years’ worth of data on the binary star MV Lyrae from NASA’s space-based Kepler observatory.

Supermassive black holes

Research led by Dr Francesco Shankar has featured in the Hampshire Independent for finding that the supermassive black holes at the centre of galaxies may on average be smaller than expected.

The results from an international team of scientists demonstrated that biased selections have overestimated black hole masses.

View the article on page 10 of November 3rd edition via the paper’s PageSuite portal.

Articles that may also interest you

Professors Alexander Belyaev and Stefano Moretti have been honoured with the prestigious 2025 Breakthrough Prize in Fundamental Physics

Fellowship news

Dr Philip Wiseman awarded prestigious Ernest Rutherford Fellowship from the Royal Society
Share this article FacebookTwitterWeibo

Published: 15 December 2017
Illustration
A white dwarf sucks matter from a star in the MV Lyrae system. Credit: Knigge/Scaringi/Uthas

Starving white dwarf stars gain mass in magnetically controlled bursts, according to new scientific research including expertise from the University of Southampton.

The findings, published in the journal Nature, challenge the thinking that most white dwarfs are ‘non-magnetic’ and incapable of drawing into orbit material from companion stars.

Professor Christian Knigge, study co-author from the University of Southampton’s Astronomy group, says the discovery that starving white dwarf stars act as magnetic ‘binge eaters’ is confirmation that accretion – the gradual accumulation of additional matter - is a universal process.

Read the full story in the University of Southampton’s main news section.

Articles that may also interest you

Professors Alexander Belyaev and Stefano Moretti have been honoured with the prestigious 2025 Breakthrough Prize in Fundamental Physics

Fellowship news

Dr Philip Wiseman awarded prestigious Ernest Rutherford Fellowship from the Royal Society
Share this article FacebookTwitterWeibo

Publications

Sun, Kai, Xiao, Wei, Ye, Sheng, Kalfagiannis, Nikolaos, Kiang, Kian Shen, de Groot, C H Kees and Muskens, Otto L. (2020) Embedded metal oxide plasmonics using local plasma oxidation of AZO for planar metasurfaces. Advanced Materials, 32 (25), [e2001534]. (doi:10.1002/adma.202001534).

Zhang, Shi, Zhu, Xupeng, Xiao, Wei, Shi, Huimin, Wang, Yasi, Chen, Zhiquan, Chen, Yiqin, Sun, Kai, Muskens, Otto L, De Groot, C H, Liu, Shao-Ding and Duan, Huigao (2020) Strongly coupled evenly divided disks: a new compact and tunable platform for plasmonic Fano resonances. Nanotechnology, 31 (32), 325202, [325202]. (doi:10.1088/1361-6528/ab8d68).

Sun, Kai, Xiao, Wei, Wheeler, Callum, Simeoni, Mirko, Urbani, Alessandro, Gaspari, Matteo, Mengali, Sandro, Kees De Groot, C. H. and Muskens, Otto L. (2022) VO2metasurface smart thermal emitter with high visual transparency for passive radiative cooling regulation in space and terrestrial applications. Nanophotonics. (doi:10.1515/nanoph-2022-0020). (In Press)

Sun, Kai, Xiao, Wei, Wheeler, Callum, Simeoni, Mirko, Urbani, Alessandro, Gaspari, Matteo, Mengali, Sandro, De Groot, Kees and Muskens, Otto (2022) Dataset to support the journal article: VO2 Metasurface Smart Thermal Emitter with High Visual Transparency for Passive Radiative Cooling Regulation in Space and Terrestrial Applications. University of Southampton doi:10.5258/SOTON/D2144 [Dataset]

Contact

Email: Wei.Xiao@soton.ac.uk

Share this profile FacebookTwitterWeibo

Publications

Skenderis, Kostas, Taylor, Marika and Rees, Balt C. van (2009) Topologically massive gravity and the AdS/CFT correspondence. Journal of High Energy Physics, 2009 (9), JHEP09(2009)045-[47pp]. (doi:10.1088/1126-6708/2009/09/045).

Skenderis, Kostas and Taylor, Marika (2008) The fuzzball proposal for black holes. Physics Reports, 467 (4-5), 117-171. (doi:10.1016/j.physrep.2008.08.001).

Compre, Geoffrey, McFadden, Paul, Skenderis, Kostas and Taylor, Marika (2011) The holographic fluid dual to vacuum Einstein gravity. Journal of High Energy Physics, 2011 (7), JHEP07(2011)050-[29pp]. (doi:10.1007/JHEP07(2011)050).

Caldeira Costa, R.N. and Taylor, Marika (2011) Holography for chiral scale-invariant models. Journal of High Energy Physics, 2011 (2), JHEP02(2011)082-[54pp]. (doi:10.1007/JHEP02(2011)082).

Taylor, Marika (2008) Matching of correlators in AdS3/CFT2. Journal of High Energy Physics, 2008 (6), JHEP06(2008)010-[16pp]. (doi:10.1088/1126-6708/2008/06/010).

Guica, Monica, Skenderis, Kostas, Taylor, Marika and Rees, Balt van (2011) Holography for Schrodinger backgrounds. Journal of High Energy Physics, 1102, p.056. (doi:10.1007/JHEP02(2011)056). (PMID:ArXiv ePrint: 1008.1991)

Taylor, Marika (2008) Non-relativistic holography. Pre-print. (Submitted)

Skenderis, Kostas and Taylor, Marika (2012) Holographic realization of gauge mediated supersymmetry breaking. Journal of High Energy Physics, 1-11. (doi:10.1007/JHEP09(2012)028).

Compere, Geoffrey, McFadden, Paul, Skenderis, Konstantinos and Taylor, Marika (2012) The relativistic fluid dual to vacuum Einstein gravity. Journal of High Energy Physics, 2012 (76), 1-29. (doi:10.1007/JHEP03(2012)076).

Smolic, Jelena and Taylor, Marika (2013) Higher derivative effects for 4d AdS gravity. Journal of High Energy Physics, 2013 (96), 1-46. (doi:10.1007/JHEP06(2013)096).

Kim, Keun-Young and Taylor, Marika (2013) Holographic d-wave superconductors. Journal of High Energy Physics, 2013 (112), 1-58. (doi:10.1007/JHEP08(2013)112).

Korovin, Yegor, Skenderis, Konstantinos and Taylor, Marika (2013) Lifshitz as a deformation of anti-de Sitter. Journal of High Energy Physics, 2013 (26), 1-54. (doi:10.1007/JHEP08(2013)026).

Korovin, Yegor, Skenderis, Konstantinos and Taylor, Marika (2013) Lifshitz from AdS at finite temperature and top down models. Journal of High Energy Physics, 2013 (127), 1-26. (doi:10.1007/JHEP11(2013)127).

Pinzani-Fokeeva, Natalia and Taylor, Marika (2015) Towards a general fluid/gravity correspondence. Physical Review D, 91 (4), 1-33. (doi:10.1103/PhysRevD.91.044001).

Taylor, Marika and Woodhead, William (2014) Inhomogeneity simplified. The European Physical Journal C, 74 (3176), 1-32. (doi:10.1140/epjc/s10052-014-3176-9).

Jones, Peter and Taylor, Marika (2015) Entanglement entropy and differential entropy for massive flavors. Journal of High Energy Physics, 2015 (14), 1-53. (doi:10.1007/JHEP08(2015)014).

Taylor, Marika (2016) Lifshitz holography. Classical and Quantum Gravity, 33 (3), 1-51. (doi:10.1088/0264-9381/33/3/033001).

Jones, Peter A.R. and Taylor, Marika (2016) Entanglement entropy in top-down models. Journal of High Energy Physics, 16 (8), 1-39, [158]. (doi:10.1007/JHEP08(2016)158).

Taylor, Marika (2016) Generalized entanglement entropy. Journal of High Energy Physics, 2016 (40), 1-40. (doi:10.1007/JHEP07(2016)040).

Taylor, Marika and Woodhead, William (2016) Renormalized entanglement entropy. Journal of High Energy Physics, 2016 (165), 1-42. (doi:10.1007/JHEP08(2016)165).

Taylor, Marika and Woodhead, William (2017) The holographic F theorem. Frontiers in Physics, 5 (66). (doi:10.3389/fphy.2017.00066).

Taylor, Marika (2018) Generalized conformal structure, dilaton gravity and SYK. Journal of High Energy Physics, 2018 (1), [10]. (doi:10.1007/JHEP01(2018)010).

Taylor, Marika and Woodhead, William (2018) Non-conformal entanglement entropy. Journal of High Energy Physics, 2018 (1), [4]. (doi:10.1007/JHEP01(2018)004).

Taylor, Marika and Garcia Tormo, Joan (2018) Correlation functions in the D1-D5 orbifold CFT. Journal of High Energy Physics. (doi:10.1007/JHEP06(2018)012).

Poole, Aaron, Skenderis, Kostas and Taylor, Marika (2019) (A)dS4 in Bondi gauge. Classical and Quantum Gravity, 36 (9), [095005]. (doi:10.1088/1361-6382/ab117c).

Katsianis, Georgios, Papadimitriou, Ioannis, Skenderis, Kostas and Taylor, Marika (2019) Anomalous supersymmetry. Physical Review Letters, 122 (23), [231602]. (doi:10.1103/PhysRevLett.122.231602).

GarciaiTormo, Joan and Taylor, Marika (2019) One point functions for black hole microstates. General Relativity and Gravitation, 51 (7), [89]. (doi:10.1007/s10714-019-2566-6).

Capone, Federico and Taylor, Marika (2019) Cosmic branes and asymptotic structure. Journal of High Energy Physics, (138). (doi:10.1007/JHEP10(2019)138).

Taylor, Marika and Too, Linus Ho Yi (2020) Renormalized entanglement entropy and curvature invariants. Journal of High Energy Physics. (In Press)

Skenderis, Kostas, Taylor, Marika, Katsianis, Georgios and Papadimitriou, Ioannis (2021) Supersymmetry anomaly in the superconformal Wess-Zumino model. Journal of High Energy Physics, 2021 (2), [209]. (doi:10.1007/JHEP02(2021)209).

Taylor, Marika and Too, Linus (2021) Generalised proofs of the first law of entanglement entropy. Journal of High Energy Physics. (doi:10.48550/arXiv.2112.00972).

Poole, Aaron, Skenderis, Kostas and Taylor, Marika (2021) Charges, conserved quantities and fluxes in de Sitter spacetime. Physical Review Letters. (doi:10.48550/arXiv.2112.14210).

Contact

Telephone: +44 (0) 23 8059 3684

Email: M.M.Taylor@soton.ac.uk

Share this profile FacebookTwitterWeibo

Publications

Leblanc, K., Hare, C. E., Boyd, P. W., Bruland, K. W., Sohst, B., Pickmere, S., Lohan, M. C., Buck, K., Ellwood, M. and Hutchins, D. A. (2005) Fe and Zn effects on the Si cycle and diatom community structure in two contrasting high and low-silicate HNLC areas. Deep Sea Research Part I: Oceanographic Research Papers, 52 (10), 1842-1864. (doi:10.1016/j.dsr.2005.06.005).

Noori, Yasir, Meng, Lingcong, Hamdiyah, Ayoub Hassan Jaafar, Zhang, Wenjian, Kissling, Gabriela, Han, Yisong, Abdelazim, Nema, Alibouri, Mehrdad, Leblanc, Kathleen, Zhelev, Nikolay, Huang, Ruomeng, Beanland, Richard, Smith, David C., Reid, Gillian, De Groot, Kees and Bartlett, Philip N. (2021) Phase change memory by GeSbTe electrodeposition in crossbar arrays. ACS Applied Electronic Materials, 3 (8), 3610-3618. (doi:10.1021/acsaelm.1c00491).

Noori, Yasir, Meng, Lingcong, Hamdiyah, Ayoub Hassan Jaafar, Han, Yisong and Abdelazim, Nema (2021) Dataset for Phase Change Memory by GeSbTe Electrodeposition in Crossbar Arrays. University of Southampton https://doi.org/10.1021/acsaelm.1c00491 [Dataset]

Contact

Telephone: +44 (0) 23 8059 2106

Email: K.I.Leblanc@soton.ac.uk

Share this profile FacebookTwitterWeibo
Telephone:
+442380592150
Email:
F.Shankar@soton.ac.uk

 

Francesco Shankar is Professor of Astrophysics and CHEP teaching champion in the School of Physics and Astronomy.

After obtaining his PhD at SISSA and a postdoc at the Ohio State University, he moved to the Max Planck Institute for Astrophysics as an Alexander von Hulmboldt Fellow, and then to the Observatoire de Paris as a Marie Curie Fellow. He then joined the Department of Physics and Astronomy in 2013.

Professor Shankar is PI of a H2020 Marie Skłodowska-Curie Innovative Training Network (https://www.bid4best.org/), fellow of the Alan Turing Institute, fellow of the Higher Education Academy, fellow of the Royal Astronomical Society, and PI of a large-scale project in medical science aimed at optimising blood pressure measurements strategies. Professor Shankar also sits on diverse scientific Advisory Board Panels worldwide and is leading a massive outreach/public engagement project named Astera (Astera - A Cosmological Visualizer (soton.ac.uk)), an interactive, fully immersive 3D realization of the Universe. 

Research

Research interests

Professor Shankar's research revolves around the theoretical modelling of galaxies, their central supermassive black holes, and their host dark matter haloes. He pioneered in the phenomenological modelling of galaxies and black holes based on a combination of abundance matching and continuity equation techniques. He has now started a group in extra-galactic astronomy aimed at specifically constraining the evolutionary channels of early-type, bulged galaxies and supermassive black holes via advanced semi-empirical models. The latter are characterized by a “bottom-up” approach: The least possible assumptions and associated parameters are initially included in the models which are otherwise informed by a number of independent observations. Additional degrees of complexities can be gradually included wherever needed. Semi-empirical models in this respect are a very powerful complementary tool to cosmological hydrodynamic simulations and semi-analytic models. The team is part of Euclid, Athena, and LSST. The increasing quantity of future data in extra-galactic Astronomy will have to be paralleled by fast modelling. The extreme flexibility and accuracy make semi-empirical models ideal tools to create full test catalogues for fast predictions and comparisons to data. Professor Shankar's research interests also lie in other areas of physics. He acted as guest editor for a review on keV sterile neutrinos and joined as co-I massive grant proposals that focus on the detection of dark matter particles via quantum sensors.

Teaching

Professor Shankar is currently the module leader of Cosmology. In previous years he was teaching Introduction to Astronomy, Galaxies and Photons in Astrophysics.

Publications

Shankar, Francesco, Bernardi, Mariangela and Haiman, Zoltan (2009) The evolution of the M_BH-sigma relation inferred from the age distribution of local early-type galaxies and active galactic nuclei evolution. Astrophysical Journal, 694 (2), 867-878. (doi:10.1088/0004-637X/694/2/867).

Shankar, Francesco, Weinberg, David H. and Miralda-Escude, Jordi (2009) Self-consistent models of the AGN and black hole populations: duty cycles, accretion rates, and the mean radiative efficiency. Astrophysical Journal, 690, 20-41. (doi:10.1088/0004-637X/690/1/20).

Shankar, Francesco, Marulli, Federico, Bernardi, Mariangela, Mei, Simona, Meert, Alan and Vikram, Vinu (2013) Size evolution of spheroids in a hierarchical Universe. Monthly Notices of the Royal Astronomical Society, 428 (1), 109-128. (doi:10.1093/mnras/sts001).

Shankar, Francesco, Crocce, Martin, Miralda-Escude', Jordi, Fosalba, Pablo and Weinberg, David H. (2010) On the radiative efficiencies, Eddington ratios, and duty cycles of luminous high-redshift quasars. The Astrophysical Journal, 718 (1), 231-250. (doi:10.1088/0004-637X/718/1/231).

Shankar, Francesco, Calderone, Giorgio, Knigge, Christian, Matthews, James, Buckland, Rachel, Hryniewicz, Krzysztof, Sivakoff, Gregory, Dai, Xinyu, Richardson, Kayleigh, Riley, Jack, Gray, James, La Franca, Fabio, Altamirano, Diego, Croston, Judith, Gandhi, Poshak, Hoenig, Sebastian, Mchardy, Ian and Middleton, Matthew (2016) The optical-UV emissivity of quasars: dependence on black hole mass and radio loudness. The Astrophysical Journal, 818 (1), 1-6. (doi:10.3847/2041-8205/818/1/L1).

Shankar, Francesco, Buchan, Stewart, Rettura, Alessandro, Bouillot, Vincent R., Moreno, Jorge, Licitra, Rossella, Bernardi, Mariangela, Hertas-Company, Marc, Mei, Simona, Ascaso, Begona, Sheth, Ravi, Delaye, Lauriane and Raichoor, Anand (2015) Avoiding progenitor bias: the structural and mass evolution of brightest group and cluster galaxies in hierarchical models since Z~1. The Astrophysical Journal, 802 (2), 1-9. (doi:10.1088/0004-637X/802/2/73).

Shankar, Francesco, Guo, Hon, Bouillot, Vincent, Rettura, Alessandro, Meert, Alan, Buchan, Stewart, Kravtsov, Andrey, Bernardi, Mariangela, Sheth, Ravi, Vikrum, Vinu, Marchesini, Danilo, Behroozie, Peter, Zheng, Zheng, Maraston, Claudia, Ascasp, Begona, Lemaux, Brian C., Capozzi, Diego, Huertas-Company, Marc, Gal, Roy R., Lubin, Lori M., Conselice, Christopher J., Carollo, Marcella and Cattaneo, Andrea (2014) On the intermediate-redshift central stellar mass-halo mass relation, and implications for the evolution of the most massive galaxies since Z~1. The Astrophysical Journal Letters, 797 (L27), 1-6. (doi:10.1088/2041-8205/797/2/L27).

Shankar, Francesco, Mei, Simona, Huertas-Company, Marc, Moreno, Jorge, Fontanot, Fabio, Monaco, Pierluigi, Bernardi, Mariangela, Cattaneo, Andrea, Sheth, Ravi, Licitra, Rossella, Delaye, Lauriane and Raichoor, Anand (2014) Environmental dependence of bulge-dominated galaxy sizes in hierarchical models of galaxy formation. Comparison with the local Universe. Monthly Notices of the Royal Astronomical Society, 439 (4), 3189-3212. (doi:10.1093/mnras/stt2470).

Gatti, M., Shankar, F., Boillot, V., Menci, N., Lamastra, A., Hirschmann, M. and Fiore, F. (2016) Constraining AGN triggering mechanisms through the clustering analysis of active black holes. Monthly Notices of the Royal Astronomical Society, 456 (1), 1073-1092. (doi:10.1093/mnras/stv2754).

Brook, Chris B. and Shankar, Francesco (2016) A matter of measurement: rotation velocities and the velocity function of dwarf galaxies. Monthly Notices of the Royal Astronomical Society, 455 (4), 3841-3847. (doi:10.1093/mnras/stv2550).

Shankar, Francesco, Bernardi, Mariangela, Sheth, Ravi K., Ferrarese, Laura, Graham, Alister W., Savorgnan, Giulia, Allevato, Viola, Marconi, Alessandro, Lasker, Ronald and Lapi, Andrea (2016) Selection bias in dynamically-measured super-massive black hole samples: its consequences and the quest for the most fundamental relation. Monthly Notices of the Royal Astronomical Society, 460 (3), 3119-3142. (doi:10.1093/mnras/stw678).

Papastergis, E. and Shankar, F. (2016) An assessment of the "too big to fail" problem for field dwarf galaxies in view of baryonic feedback effects. Astronomy & Astrophysics, 591 (A58), 1-13. (doi:10.1051/0004-6361/201527854).

Buchan, Stewart and Shankar, Francesco (2016) Setting firmer constraints on the evolution of the most massive, central galaxies from their local abundances and ages. Monthly Notices of the Royal Astronomical Society, 462 (2), 2001-2010. (doi:10.1093/mnras/stw1771).

Sesana, Alberto, Shankar, Francesco, Bernardi, Mariangela and Sheth, Ravi K. (2016) Selection bias in dynamically measured supermassive black hole samples: consequences for pulsar timing arrays. Monthly Notices of the Royal Astronomical Society: Letters, 463 (1), L6-L11. (doi:10.1093/mnrasl/slw139).

Marchesi, S., Civano, F., Salvato, M., Shankar, F., Comastri, A., Elvis, M., Lanzuisi, G., Trakhtenbrot, B., Vignali, C., Zamorani, G., Allevato, V., Brusa, M., Fiore, F., Gilli, R., Griffiths, R., Hasinger, G., Miyaji, T., Schawinski, K., Treister, E. and Urry, C.M. (2016) The Chandra COSMOS-Legacy Survey: The z>3 sample. The Astrophysical Journal, 827 (150), 1-16. (doi:10.3847/0004-637X/827/2/150).

Fontanot, Fabio, Monaco, Pierluigi and Shankar, Francesco (2016) Interpreting the possible break in the black hole-bulge mass relation. Monthly Notices of the Royal Astronomical Society, 453 (4), 4112-4120. (doi:10.1093/mnras/stv1930).

Allevato, V., Civano, F., Finoguenov, A., Marchesi, S., Shankar, F., Zamorani, G., Hasinger, G., Salvato, M., Miyaji, T., Gilli, R., Cappelluti, N., Brusa, M., Suh, H., Lanzuisi, G., Trakhtenbrot, B., Griffiths, R., Vignali, C., Schawinski, K. and Karim, A. (2016) The Chandra Cosmos legacy survey: clustering of x-ray selected AGN at 2.9. The Astrophysical Journal, 832 (1), 1-10. (doi:10.3847/0004-637X/832/1/70).

Papastergis, E., Giovanelli, R., Haynes, M.P. and Shankar, F. (2015) Is there a "too big to fail" problem in the field? Astronomy & Astrophysics, 574, [A113]. (doi:10.1051/0004-6361/201424909).

Aversa, R., Lapi, A., de Zotti, G., Shankar, F. and Danese, L. (2015) Black hole and galaxy coevolution from continuity equation and abundance matching. The Astrophysical Journal Letters, 810 (74), 1-40. (doi:10.1088/0004-637X/810/1/74).

Huertas-Company, M., Bernardi, M., Perez-Gonzalez, P.G., Ashby, M.L.N., Barro, G., Conselice, C., Daddi, E., Dekel, A., Dimauro, P., Faber, S.M., Grogin, N.A., Kartaltepe, J.S., Kocevski, D.D., Koekemoer, A.M., Koo, D.C., Mei, S. and Shankar, F. (2016) Mass assembly and morphological transformations since z~3 from CANDELS. Monthly Notices of the Royal Astronomical Society, 462 (4), 4495-4516. (doi:10.1093/mnras/stw1866).

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).

Ricci, Federica, Marchesi, Stefano, Shankar, Francesco, La Franca, Fabio and Civano, Francesca (2017) Constraining the UV emissivity of AGN throughout cosmic time via X-ray surveys. Monthly Notices of the Royal Astronomical Society, 465 (2), 1915-1925. (doi:10.1093/mnras/stw2909).

Shankar, Francesco (2016) Host galaxies of luminous z? 0.6 quasars: Major mergers are not prevalent at the highest AGN luminosities. Monthly Notices of the Royal Astronomical Society, 1-20. (doi:10.1093/mnras/stw3037).

Bernardi, M., Meert, A., Sheth, R. K., Fischer, J.-L., Huertas-Company, M., Maraston, C., Shankar, F. and Vikram, V. (2017) The high mass end of the stellar mass function: dependence on stellar population models and agreement between fits to the light profile. Monthly Notices of the Royal Astronomical Society, 467 (2), 2217-2233. (doi:10.1093/mnras/stx176).

Shankar, Francesco, Bernardi, Mariangela and Sheth, Ravi K. (2017) Selection bias in dynamically-measured super-massive black hole samples: dynamical masses and dependence on Sérsic index. Monthly Notices of the Royal Astronomical Society, 466, 4029-4039. (doi:10.1093/mnras/stw3368).

Morabito, L. K., Dai, Xinyu, Leighly, Karen M, Sivakoff, Gregory and Shankar, F (2014) Unveiling the intrinsic x-ray properties of broad absorption line quasars with a relatively unbiased sample. The Astrophysical Journal. (In Press)

Schulze, A., Bongiorno, A., Gavignaud, I and Shankar, F (2014) The cosmic growth of the active black hole population at 1 < z < 2 in zCOSMOS, VVDS and SDSS. Monthly Notices of the Royal Astronomical Society. (In Press)

Huertas-Company, M., Perez-Gonzalez, P.G., Mei, S. and Shankar, F (2015) The morphologies of massive galaxies from z 3 - witnessing the 2 channels of bulge growth. The Astrophysical Journal.

Huertas-Company, Marc, Gravet, R, Cabrera-Vives, G., Pérez-González, Pablo G., Kartaltepe, J.S., Barro, G., Bernardi, M., Mei, S., Shankar, F, Dimauro, P., Bell, E. F., Kocevski, D., Koo, D. C., Faber, S. M. and Mcintosh, D. H. (2015) A catalog of visual-like morphologies in the 5 CANDELS fields using deep-learning. The Astrophysical Journal Supplement Series, 221 (1), [8]. (doi:10.1088/0067-0049/221/1/8).

Fiore, F., Feruglio, C., Shankar, F., Bischetti, M., Bongiorno, A., Brusa, M., Carniani, S., Cicone, C., Duras, F., Lamastra, A., Mainieri, V., Marconi, A., Menci, N., Maiolino, R., Piconcelli, E., Vietri, G. and Zappacosta, L. (2017) AGN wind scaling relations and the co-evolution of black holes and galaxies. Astronomy & Astrophysics, 601, 1-21, [A143]. (doi:10.1051/0004-6361/201629478).

Bernardi, M., Meert, Alan and Shankar, F (2015) The massive end of the luminosity and stellar mass functions and clustering from CMASS to SDSS:: evidence for and against passive evolution. Monthly Notices of the Royal Astronomical Society. (In Press)

Bernardi, M., Fischer, J.-L., Sheth, R.K., Meert, A., Huertas-Company, M., Shankar, F. and Vikram, V. (2017) Comparing PyMorph and SDSS photometry. II.: The differences are more than semantics and are not dominated by intracluster light. Monthly Notices of the Royal Astronomical Society, 468 (3), 2569-2581.

Barausse, Enrico, Shankar, F and Bernardi, Mariangela (2017) Selection bias in dynamically measured supermassive black hole samples: Scaling relations and correlations between residuals in semi-analytic galaxy formation models: Scaling relations and correlations between residuals in semi-analytic galaxy formation models. Monthly Notices of the Royal Astronomical Society, 468 (4), 4782-4791. (doi:10.1093/mnras/stx799).

Delaye, L., Huertas-Company, M., Mei, S., Lidman, C., Licitra, R., Newman, A., Raichoor, A., Shankar, F., Barrientos, F., Bernardi, M., Cerulo, P., Couch, W., Demarco, R., Munoz, R., Sanchez-Janssen, R. and Tanaka, M. (2014) Larger sizes of massive quiescent early-type galaxies in clusters than in the field at 0.8 < z < 1.5. Monthly Notices of the Royal Astronomical Society, 441 (1), 203-223. (doi:10.1093/mnras/stu496).

Adhikari, R., Bari, P. Di and Shankar, F. , White Paper on keV Sterile Neutrino Dark Matter collaboration (2017) A White Paper on keV sterile neutrino Dark Matter. Journal of Cosmology and Astroparticle Physics, 2017 (1), [025]. (doi:10.1088/1475-7516/2017/01/025).

Ricci, F., La Franca, F., Marconi, A., Onori, F., Shankar, F., Schneider, R., Sani, E., Bianchi, S., Bongiorno, A., Brusa, M., Fiore, F., Maiolino, R. and Vignali, C. (2017) Detection of faint broad emission lines in type 2 AGNs – III. On the MBH-σ⋆ relation of type 2 AGNs. Monthly Notices of the Royal Astronomical Society, 471 (1), L41-L46. (doi:10.1093/mnrasl/slx103).

Lasker, Ronald, Ferrarese, Laura, Van De Ven, Glenn and Shankar, F (2013) Supermassive black holes and their host galaxies – ii. The correlation with near-infrared luminosity revisited. The Astrophysical Journal. (In Press)

Shankar, Francesco (2017) Revisiting the bulge-halo conspiracy I: dependence on galaxy properties and halo mass. The Astrophysical Journal. (doi:10.3847/1538-4357/aa66ce).

Shankar, F., Sonnenfeld, A., Grylls, P., Zanisi, L., Nipoti, C., Chae, K.-H., Bernardi, M., Petrillo, C.E., Huertas-Company, M., Mamon, G.A. and Buchan, S. (2018) Revisiting the bulge-halo conspiracy - II. Towards explaining its puzzling dependence on redshift. Monthly Notices of the Royal Astronomical Society, 475 (3), 2878-2890. (doi:10.1093/mnras/stx3086).

Calderone, G., Nicastro, L., Ghisellini, G., Dotti, M., Sbarrato, T., Shankar, F. and Colpi, M. (2017) QSFit: Automatic analysis of optical AGN spectra. Monthly Notices of the Royal Astronomical Society, 472 (4), 4051-4080. (doi:10.1093/mnras/stx2239).

Baldi, R.D., Williams, D.R.A., McHardy, I.M., Beswick, R.J., Argo, M.K., Dullo, B.T., Knapen, J.H., Brinks, E., Muxlow, T.W.B., Aalto, S., Alberdi, A., Bendo, G.J., Corbel, S., Evans, R., Fenech, D.M., Green, D.A., Klöckner, H.-R., Körding, E., Kharb, P., Maccarone, T.J., Martí-Vidal, I., Mundell, C.G., Panessa, F., Peck, A.B., Pérez-Torres, M.A., Saikia, D.J., Saikia, P., Shankar, F., Spencer, R.E., Stevens, I.R., Uttley, P. and Westcott, J. (2018) LeMMINGs. I. The eMERLIN legacy survey of nearby galaxies. 1.5-GHz parsec-scale radio structures and cores. Monthly Notices of the Royal Astronomical Society, 476 (3), 3478-3522. (doi:10.1093/mnras/sty342).

Bernardi, M., Sheth, R.K., Fischer, J.-L., Meert, A., Chae, K.-H., Dominguez-Sanchez, H., Huertas-Company, M., Shankar, F. and Vikram, V. (2018) Stellar mass functions and implications for a variable IMF. Monthly Notices of the Royal Astronomical Society, 475 (1), 757-771. (doi:10.1093/mnras/stx3171).

Sani, Eleonora, Ricci, Federica, Le Franca, Fabio, Bianchi, Stefano, Bongiorno, Angela, Brusa, Marcella, Marconi, Alessandro, Onori, Francesca, Shankar, F and Vignali, Cristian (2018) NGC 1275: an outlier of the black hole-host scaling relations. Frontiers in Astronomy and Space Sciences. (doi:10.3389/fspas.2018.00002).

Bernardi, M., Sheth, R.K., Dominguez-Sanchez, H., Fischer, J.-L., Chae, K.-H., Huertas-Company, M. and Shankar, F. (2018) M*/L gradients driven by IMF variation: large impact on dynamical stellar mass estimates. Monthly Notices of the Royal Astronomical Society, 477 (2), 2560–2571. (doi:10.1093/mnras/sty781).

Lapi, A., Pantoni, L., Zanisi, L., Shi, J., Mancuso, C., Massardi, M., Shankar, F., Bressen, A. and Danese, L. (2018) The dramatic size and kinematic evolution of massive early-type galaxies. The Astrophysical Journal, 857 (1), [22].

Dimauro, Paola, Huertas-Company, Marc, Daddi, Emanuele, Pérez-González, Pablo G., Bernardi, Mariangela, Barro, Guillermo, Buitrago, Fernando, Caro, Fernando, Cattaneo, Andrea, Dominguez-Sánchez, Helena, Faber, Sandra M., Häußler, Boris, Kocevski, Dale D., Koekemoer, Anton M., Koo, David C., Lee, Christoph T., Mei, Simona, Margalef-Bentabol, Berta, Primack, Joel, Rodriguez-Puebla, Aldo, Salvato, Mara, Shankar, Francesco and Tuccillo, Diego (2018) A catalog of polychromatic bulge-disc decompositions of ~17.600 galaxies in CANDELS. Monthly Notices of the Royal Astronomical Society, 478 (4), 5410-5426. (doi:10.1093/mnras/sty1379).

Steinborn, Lisa K, Hirschmann, Michaela, Dolag, Klaus, Shankar, Francesco, Juneau, Stéphanie, Krumpe, Mirko, Remus, Rhea-silvia and Teklu, Adelheid F (2018) Cosmological simulations of black hole growth II: how (in)significant are merger events for fuelling nuclear activity? Monthly Notices of the Royal Astronomical Society, 481 (1), 341-360. (doi:10.1093/mnras/sty2288).

Yang, Lilan, Dai, Xinyu, Lu, Youjun, Zhu1, Zong Hong and Shankar, Francesco (2018) Swift monitoring observations of Mrk 231: detection of ultraviolet variability. Monthly Notices of the Royal Astronomical Society, 480 (4), 5504-5510. (doi:10.1093/MNRAS/STY2253).

Grylls, Philip J, Shankar, F, Zanisi, L and Bernardi, M (2019) A statistical semi-empirical model: satellite galaxies in groups and clusters. Monthly Notices of the Royal Astronomical Society, 483 (2), 2506-2523. (doi:10.1093/mnras/sty3281).

Menci, N., Fiore, F., Feruglio, C., Lamastra, A., Shankar, F., Piconcelli, E., Giallongo, E. and Grazian, A. (2019) Outflows in the disks of active galaxies. The Astrophysical Journal, 877 (2), 1-19, [74]. (doi:10.3847/1538-4357/ab1a3a).

Shankar, Francesco, Bernardi, Mariangela, Richardson, Kayleigh, Marsden, Christopher, Sheth, Ravi, Allevato, Viola, Graziani, Luca, Mezcua, Mar, Ricci, Federica, Penny, Samantha J., La Franca, Fabio and Pacucci, Fabio (2019) Black hole scaling relations of active and quiescent galaxies: Addressing selection effects and constraining virial factors. Monthly Notice of the Royal Astronomical Society, 485 (1), 1278-1292. (doi:10.1093/mnras/stz376).

Delvecchio, I., Daddi, E., Shankar, F., Mullaney, J.R., Zamorani, G., Aird, J., Bernhard, E., Cimatti, A., Elbaz, D., Giavalisco, M. and Grimmett, L.P. (2019) The galaxy's gas content regulated by the dark matter halo mass results in a superlinear M BH-M ∗ relation. The Astrophysical Journal Letters, 885 (2), [L36]. (doi:10.3847/2041-8213/ab4e21).

Shankar, F, Allevato, Viola, Bernardi, Mariangela, Marsden, Christopher, Lapi, Andrea, Menci, Nicola, Grylls, Philip J., Krumpe, Mirko, Zanisi, Lorenzo, Ricci, Federica, La Franca, Fabio, Baldi, Ranieri D., Moreno, Jorge and Sheth, Ravi K. (2019) Constraining black hole–galaxy scaling relations and radiative efficiency from galaxy clustering. Nature Astronomy.

Allevato, V., Viitanen, A., Finoguenov, A., Civano, F., Suh, H., Shankar, F, Bongiorno, A., Ferrara, A., Gilli, R., Miyaji, T., Marchesi, S., Cappelluti, N. and Salvato, M. (2019) Chandra COSMOS Legacy Survey: Clustering dependence of Type 2 active galactic nuclei on host galaxy properties. Astronomy & Astrophysics, 632. (doi:10.1051/0004-6361/201936191).

Duras, F., Bongiorno, A., Ricci, F., Piconelli, E., Shankar, F., Lusso, E., Bianchi, S., Fiore, F., Maiolino, R., Marconi, A., Onori, F., Sani, E., Schneider, R., Vignali, C. and La Franca, F. (2020) Universal bolometric corrections for active galactic nuclei over seven luminosity decades. Astronomy & Astrophysics, 636, [A73]. (doi:10.1051/0004-6361/201936817).

Suh, Hyewon, Civano, Francesca, Trakhtenbrot, Benny, Shankar, Francesco, Hasinger, Günther, Sanders, David B. and Allevato, Viola (2020) No significant evolution of relations between black hole mass and galaxy total stellar mass up to z ∼ 2.5. The Astrophysical Journal, 889 (1), [32]. (doi:10.3847/1538-4357/ab5f5f).

Grylls, Philip J, Shankar, F, Leja, J, Menci, N, Moster, B, Behroozi, P and Zanisi, L (2020) Predicting fully self-consistent satellite richness, galaxy growth and starformation rates from the STastical sEmi-Empirical modeL steel. Monthly Notices of the Royal Astronomical Society, 491 (1), 634–654. (doi:10.1093/mnras/stz2956).

Zanisi, Lorenzo, Shankar, Francesco, Lapi, Andrea, Menci, Nicola, Bernardi, Mariangela, Duckworth, Christopher, Huertas-Company, Marc, Grylls, Philip and Salucci, Paolo (2020) Galaxy sizes and the galaxy–halo connection – I. The remarkable tightness of the size distributions. Monthly Notices of the Royal Astronomical Society, 492 (2), 1671-1690. (doi:10.1093/mnras/stz3516).

Dimauro, Paola, Huertas-Company, Marc, Daddi, Emanuele, Pérez-González, Pablo G., Bernardi, Mariangela, Caro, Fernando, Cattaneo, Andrea, Häußler, Boris, Kuchner, Ulrike, Shankar, Francesco, Barro, Guillermo, Buitrago, Fernando, Faber, Sandra M, Kocevski, Dale D, Koekemoer, Anton M, Koo, David C, Mei, Simona, Peletier, Reynier, Primack, Joel, Rodriguez-puebla, Aldo, Salvato, Mara and Tuccillo, Diego (2019) The structural properties of classical bulges and discs from z ∼ 2. Monthly Notices of the Royal Astronomical Society, 489 (3), 4135-4154. (doi:10.1093/mnras/stz2421).

Stringer, M. J., Shankar, F., Novak, G. S., Huertas-company, M., Combes, F. and Moster, B. P. (2014) Galaxy size trends as a consequence of cosmology. Monthly Notices of the Royal Astronomical Society, 441 (2), 1570-1583. (doi:10.1093/mnras/stu645).

Allevato, V., Finoguenov, A., Civano, F., Cappelluti, N., Shankar, F., Miyaji, T., Hasinger, G., Gilli, R., Zamorani, G., Lanzuisi, G., Salvato, M., Elvis, M., Comastri, A. and Silverman, J. (2014) Clustering of moderate luminosity X-ray-selected Type 1 and Type 2 AGNS at Z ~ 3. The Astrophysical Journal, 796 (1), 4. (doi:10.1088/0004-637X/796/1/4).

Bernardi, M., Meert, A., Vikram, V., Huertas-Company, M., Mei, S., Shankar, F. and Sheth, R. K. (2014) Systematic effects on the size–luminosity relations of early- and late-type galaxies: dependence on model fitting and morphology. Monthly Notices of the Royal Astronomical Society, 443 (1), 874-897. (doi:10.1093/mnras/stu1106).

Marsden, Christopher, Shankar, F, Ginolfi, Michele and Zubovas, Kastytis (2020) The case for the fundamental MBH-σ relation. Frontiers in Physics, 8, [61]. (doi:10.3389/fphy.2020.00061).

Asmus, D., Greenwell, C.L., Gandhi, P., Boorman, P.G., Aird, J., Alexander, D.M., Assef, R.J., Baldi, R.D., Davies, R.I., Hönig, S.F., Ricci, C., Rosario, D.J., Salvato, M., Shankar, F. and Stern, D. (2020) Local AGN Survey (LASr): I. Galaxy sample, infrared colour selection and predictions for AGN within 100 Mpc. Monthly Notices of the Royal Astronomical Society, 494 (2), 1784–1816. (doi:10.1093/mnras/staa766).

Shankar, Francesco, Weinberg, David H, Marsden, Christopher, Grylls, Philip J., Bernardi, Mariangela, Yang, Guang, Moster, Benjamin, Fu, Hao, Carraro, Rosamaria, Alexander, David M., Allevato, Viola, Ananna, Tonima T., Bongiorno, Angela, Calderone, Giorgio, Civano, Francesca, Daddi, Emanuele, Delvecchio, Ivan, Duras, Federica, La franca, Fabio, Lapi, Andrea, Lu, Youjun, Menci, Nicola, Mezcua, Mar, Ricci, Federica, Rodighiero, Giulia, Sheth, Ravi K, Suh, Hyewon, Villforth, Carolin and Zanisi, Lorenzo (2020) Probing black hole accretion tracks, scaling relations, and radiative efficiencies from stacked X-ray active galactic nuclei. Monthly Notices of the Royal Astronomical Society, 493 (1), 1500-1511. (doi:10.1093/mnras/stz3522).

Ananna, Tonima T., Megan Urry, C., Treister, Ezequiel, Hickox, Ryan C., Shankar, Francesco, Ricci, Claudio, Cappelluti, Nico, Marchesi, Stefano and Turner, Tracey Jane (2020) Accretion history of AGNs. III. Radiative efficiency and AGN contribution to reionization. Astrophysical Journal, 903 (2), [85]. (doi:10.3847/1538-4357/abb815).

Zanisi, Lorenzo, Huertas-Company, Marc, Lanusse, François, Bottrell, Connor, Pillepich, Annalisa, Nelson, Dylan, Rodriguez-Gomez, Vicente, Shankar, Francesco, Hernquist, Lars, Dekel, Avishai, Margalef-Bentabol, Berta, Vogelsberger, Mark and Primack, Joel (2020) A deep learning approach to test the small-scale galaxy morphology and its relationship with star formation activity in hydrodynamical simulations. Monthly Notices of the Royal Astronomical Society, 501 (3). (doi:10.1093/mnras/staa3864).

Augustin, Alexandry, Coutts, Louise, Zanisi, Lorenzo, Wierzbicki, Anthony S., Shankar, Francesco, Chowienczyk, Phil J. and Floyd, Christopher N. (2021) Impact of therapeutic inertia on long-term blood pressure control a Monte Carlo simulation study. Hypertension, 77 (4), 1350–1359. (doi:10.1161/HYPERTENSIONAHA.120.15866).

Zanisi, Lorenzo, Shankar, F, Fu, H., Rodriguez-Puebla, Aldo, Avila-Reese, V., Faisst, A., Daddi, E., Boco, L., Lapi, A., Giavalisco, M., Saracco, P., Buitrago, Fernando, Huertas-Company, M., Puglisi, A. and Dekel, A. (2021) The evolution of compact massive quiescent and star-forming galaxies derived from the Re-Rhand Mstar-Mhrelations. Monthly Notices of the Royal Astronomical Society, 505 (3), 4555–4570. (doi:10.1093/mnras/stab1472).

Allevato, V., Shankar, F., Marsden, C., Rasulov, U., Viitanen, A., Georgakakis, A., Ferrara, A. and Finoguenov, A. (2021) Building robust active galactic nuclei mock catalogs to unveil black hole evolution and for survey planning. Astrophysical Journal. (doi:10.3847/1538-4357/abfe59/meta).

Baldi, Ranieri Diego, McHardy, Ian, Zanisi, Lorenzo, Shankar, F, Williams, D.R.A., Beswick, R.J., Dullo, B.T., Knapen, J.H., Argo, M.K., Aalto, S., Alberdi, A., Baan, W.A., Bendo, G.J., Fenech, D.M., Green, D.A., Klöckner, H.-R., Körding, E., Maccarone, T.J., Marcaide, J.M., Mutie, I., Panessa, F., Pérez-Torres, M.A., Romero-Cañizales, C., Saikia, D.J., Saikia, P., Spencer, R.E., Stevens, I.R., Uttley, P., Brinks, E., Corbel, S., Martí-Vidal, I., Mundell, C.G., Pahari, M. and Ward, M.J. (2021) LeMMINGs III. The e-MERLIN legacy survey of the Palomar sample: Exploring the origin of nuclear radio emission in active and inactive galaxies through the [O iii] - radio connection. Monthly Notices of the Royal Astronomical Society.

Zanisi, Lorenzo, Shankar, F, Bernardi, M., Mei, S. and Huertas-Company, M. (2021) The size function of massive satellites from the R-e-R-h and M-star-M-h relations: constraining the role of environment. Monthly Notices of the Royal Astronomical Society. (In Press)

Timberlake, Christopher, Vinante, Andrea, Shankar, F, Lapi, Andrea and Ulbricht, Hendrik (2021) Probing modified gravity with magnetically levitated resonators. Physical Review D, 104 (10), [L101101]. (doi:10.1103/PhysRevD.104.L101101).

Sicilia, Alex, Lapi, Andrea, Boco, Lumen, Spera, Mario, Di Carlo, Ugo N., Mapelli, Michela, Shankar, Francesco, Alexander, David M., Bressan, Alessandro and Danese, Luigi (2022) The black hole mass function across cosmic times. I. Stellar black holes and light seed distribution. The Astrophysical Journal, 924 (2), 56, [56]. (doi:10.3847/1538-4357/ac34fb).

Marsden, Christopher, Shankar, F., Fu, Hao, Bernardi, Mariangela, Sheth, Ravi K. and Lapi, Andrea (2021) The weak dependence of velocity dispersion on disc fractions, mass-to-light ratio, and redshift: implications for galaxy and black hole evolution. Monthly Notices of the Royal Astronomical Society, 510 (4), 5639–5660. (doi:10.1093/mnras/stab3705).

Shankar, F, Marsden, Christopher, Carraro, Rosamaria, Allevato, Viola, Rodighiero, Giulia, Arévalo, Patricia, Delvecchio, Ivan and Lapi, Andrea (2022) An Eddington ratio-driven origin for the LX - M-* relation in quiescent and star-forming active galaxies. Monthly Notices of the Royal Astronomical Society, 512 (1), 1185 - 1195. (doi:10.1093/mnras/stac441).

Shankar, F., Dimauro, Paola, Daddi, Emanuele, Cattaneo, Andrea, Huertas-Company, Marc, Bernardi, Mariangela, Caro, Fernando, Dupke, Renato, Häußler, Boris, Johnston, Evelyn, Cortesi, Arianna, Mei, Simona and Peletier, Reynier (2022) Coincidence between morphology and star formation activity through cosmic time: the impact of the bulge growth. Monthly Notices of the Royal Astronomical Society. (In Press)

Martin-Navarro, Ignacio, Shankar, F. and Mezcua, Mar (2021) Rejuvenation triggers nuclear activity in nearby galaxies. Monthly Notices of the Royal Astronomical Society: Letters, 513 (1), L10–L14. (doi:10.1093/mnrasl/slab112).

Shankar, F, Trinca, Alessandro, Schneider, Raffaella, Valiante, Rosa, Graziani, Luca and Zappacosta, Luca (2022) The low-end of the black hole mass function at cosmic dawn. Monthly Notices of the Royal Astronomical Society. (doi:10.48550/arXiv.2201.02630). (In Press)

Grylls, Philip J, Shankar, F and Conselice, C. J. (2020) The significant effects of stellar mass estimation on galaxy pair fractions. Monthly Notices of the Royal Astronomical Society, 499 (2), 2262-2275. (doi:10.1093/mnras/staa2966).

Contact

Telephone: +44 (0) 23 8059 2150

Email: F.Shankar@soton.ac.uk

Share this profile FacebookTwitterWeibo

Pages