The University of Southampton

Dr Sebastian Hoenig 

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Dr Sebastian Hoenig graduated (Dipl.-Phys.) from the University of Heidelberg and received his PhD in astronomy from the University of Bonn and the Max-Planck-Institute for Radioastronomy. Following postdoctoral fellowships at the Max Planck Institute, the University of California Santa Barbara, and the University of Copenhagen, Sebastian joined the University of Southampton in 2014 as a Lecturer and Marie Curie fellow. He is now an Associate Professor in the Astronomy Group. 

Sebastian's research focuses on dust in supermassive black holes and involves high-angular resolution observations, 3D radiative transfer modelling (CAT3D), radiation hydrodynamic simulations and time series analysis. His research group is supported by the European Research Council, the European Commission's Research Executive Agency, and the Science & Technology Facilities Council (STFC). Sebastian serves as Deputy Director of the Centre for Doctoral Training in Data Intensive Science (DISCnet) as well as President of the European Interferometry Initiative (EII; He is the School's REF champion for the upcoming Research Excellence Framework 2021.


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).

Asmus, D., Hoenig, Sebastian F. and Gandhi, Poshak (2016) The subarcsecond mid-infrared view of local active galactic nuclei.III. Polar dust emission. The Astrophysical Journal, 822 (2), 1-13, [109]. (doi:10.3847/0004-637X/822/2/109).

Ramos Almeida, C., Martinez Gonzalez, M.J., Asensio Ramos, A., Acosta-Pulido, J.A., Hoenig, S.F., Alonso-Herrero, A., Tadhunter, C.N. and Gonzalez-Martin, O. (2016) Upholding the unified model for Active Galactic Nuclei: VLT/FORS2 spectropolarimetry of Seyfert 2 galaxies. Monthly Notices of the Royal Astronomical Society, 1-18. (doi:10.1093/mnras/stw1388).

Asmus, D., Gandhi, P., Hönig, S.F., Smette, A. and Dushl, W.J. (2015) The subarcsecond mid-infrared view of local active galactic nuclei - II. The mid-infrared–X-ray correlation. Monthly Notices of the Royal Astronomical Society, 454 (1), 766-803. (doi:10.1093/mnras/stv1950).

Gandhi, Poshak, Hoenig, Sebastian F. and Kishimoto, Makoto (2015) The dust sublimation radius as an outer envelope to the bulk of the narrow Fe Kα line emission in type 1 AGNs. The Astrophysical Journal, 812 (113), 1-11. (doi:10.1088/0004-637X/812/2/113).

Asmus, D., Hoenig, Sebastian, Gandhi, Poshak, Smette, A. and Duschi, W.J. (2014) The subarcsecond mid-infrared view of local active galactic nuclei – I. The N- and Q-band imaging atlas? Monthly Notices of the Royal Astronomical Society, 439 (2), 1648-1679. (doi:10.1093/mnras/stu041).

Esquej, Pilar, Alonso-Herrero, Almudena, Gonzalez-Martin, Omaira and Hoenig, Sebastian (2013) Nuclear star formation activity and black hole accretion in nearby Seyfert galaxies. The Astrophysical Journal, 780 (1), 1-16. (doi:10.1088/0004-637X/780/1/86).

Lopez-Rodriguez, E., Packham, C., Jones, T.J., Nikutta, R., McMaster, L., Mason, R.E., Elvis, M., Shenoy, D., Alonso-Herrero, A., Ramírez, E., González Martín, O., Hoenig, S.F., Levenson, N.A., Ramos Almeida, C. and Perlman, E. (2015) Near-infrared polarimetric adaptive optics observations of NGC 1068: a torus created by a hydromagnetic outflow wind. Monthly Notices of the Royal Astronomical Society, 452 (2), 1902-1913. (doi:10.1093/mnras/stv1410).

Barth, Aaron J., Bennert, Vardha N., Canalizo, Gabriela, Filippenko, Alexei V., Gates, Elinor L., Greene, Jenny E., Li, Weidong, Malkan, Matthew A., Pancoast, Anna, Sand, David J., Stern, Daniel, Treu, Tommaso, Woo, Jong-Hak, Assef, Roberto J., Bae, Hyun-Jin, Brewer, Brendon J., Cenko, S. Bradley, Clubb, Kelsey I., Cooper, Michael C., Diamond-Stanic, Aleksandar M., Hiner, Kyle D., Hoenig, Sebastian, Hsiao, Eric, Kandrashoff, Michael T., Lazarova, Mariana S., Nierenberg, A. M., Rex, Jacob, Silverman, Jeffrey M., Tollerud, Erik J. and Walsh, Jonelle L. (2015) The Lick AGN monitoring project 2011: spectroscopic campaign and emission-line light curves. The Astrophysical Journal Supplement Series, 217 (26), 1-32. (doi:10.1088/0067-0049/217/2/26).

Hernán-Caballero, Antonio, Alonso-Herrero, Almudena, Hatziminaoglou, Evanthia, Spoon, Henrik W.W., Almeida, Cristina Ramos, Santos, Tanio Díaz, Hoenig, Sebastian, González-Martín, Omaira and Esquej, Pilar (2015) Resolving the active galactic nucleus and host emission in the mid-infrared using a model-independent spectral decomposition. The Astrophysical Journal, 803 (2), 1-16. (doi:10.1088/0004-637X/803/2/109).

Ichikawa, Kohei, Packham, Christopher, Almeida, Cristina Ramos, Ramos, Andrés Asensio, Alonso-Herrero, Almudena, González-Martín, Omaira, Lopez-Rodriguez, Enrique, Ueda, Yoshihiro, Díaz-Santos, Tanio, Elitzur, Moshe, Hoenig, Sebastian, Imanishi, Masatoshi, Levenson, Nancy A., Mason, Rachel E., Perlman, Eric S. and Alsip, Crystal D. (2015) The differences in the torus geometry between hidden and non-hidden broad line active galactic nuclei. The Astrophysical Journal, 803 (57), 1-12. (doi:10.1088/0004-637X/803/2/57).

Rakshit, S., Petrov, R.G., Meilland, A. and Hoenig, S.F. (2015) Differential interferometry of QSO broad-line regions - I. Improving the reverberation mapping model fits and black hole mass estimates. Monthly Notices of the Royal Astronomical Society, 447 (3), 2420-2436. (doi:10.1093/mnras/stu2613).

Hönig, Sebastian F., Watson, Darach, Kishimoto, Makoto and Hjorth, Jens (2014) A dust-parallax distance of 19 megaparsecs to the supermassive black hole in NGC 4151. Nature, 515 (7528), 528-530. (doi:10.1038/nature13914).

Alonso-Herrero, A., Ramos Almeida, C., Esquej, P., Roche, P.F., Hernan-Caballero, A., Hoenig, S.F., Gonzalez-Martin, O., Aretxaga, I., Mason, R.E., Packham, C., Levenson, N.A., Rodriguez Espinosa, J.M., Siebenmorgen, R., Pereira-Santaella, M., Diaz-Santos, T., Colina, L., Alvarez, C. and Telesco, C.M. (2014) Nuclear 11.3 m PAH emission in local active galactic nuclei. Monthly Notices of the Royal Astronomical Society, 443 (3), 2766-2782. (doi:10.1093/mnras/stu1293).

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).

Hoenig, Sebastian (2014) Dust reverberation mapping in the era of big optical surveys and its cosmological application. The Astrophysical Journal Letters, 784 (L4), 1-5. (doi:10.1088/2041-8205/784/1/L4).

Boorman, P., Gandhi, P., Alexander, D., Annuar, A., Ballantyne, D.R., Bauer, F., Boggs, S.E., Brandt, N., Brightman, M., Christensen, F.E., Craig, W.W., Farrah, D., Hailey, C.J., Harrison, F.A., Hoenig, Sebastian, Koss, M., LaMassa, S.M., Masini, A., Ricci, C., Risaliti, G., Stern, D. and Zhang, W.W. (2016) IC 3639 - A new bona fide Compton thick AGN unveiled by NuSTAR. The Astrophysical Journal, 833 (2), 1-18. (doi:10.3847/1538-4357/833/2/245).

Hönig, Sebastian F. (2016) Tori, discs, and winds: the first ten years of AGN interferometry. In, Boffin, H., Hussain, G., Berger, JP. and Schmidtobreick, L. (eds.) Astronomy at High Angular Resolution. (Astrophysics and Space Science Library, , (doi:10.1007/978-3-319-39739-9_6), 439) Cham. Springer, pp. 95-112. (doi:10.1007/978-3-319-39739-9_6).

Hoenig, Sebastian, Gandhi, P., Asmus, D., Mushotzky, R. F., Antonucci, R., Ueda, Y. and Ichikawa, K. (2014) What obscures low-X-ray-scattering active galactic nuclei? Monthly Notices of the Royal Astronomical Society, 438 (1), 647-656. (doi:10.1093/mnras/stt2234).

Tristram, Konrad R. W., Burtscher, Leonard, Jaffe, Walter, Meisenheimer, Klaus, Hönig, Sebastian F., Kishimoto, Makoto, Schartmann, Marc and Weigelt, Gerd (2014) The dusty torus in the Circinus galaxy: a dense disk and the torus funnel. Astronomy & Astrophysics, 563, [A82]. (doi:10.1051/0004-6361/201322698).

Hönig, Sebastian F. and Kishimoto, Makoto (2017) Dusty winds in active galactic nuclei: Reconciling observations with models. The Astrophysical Journal Letters, 838 (2), [L20]. (doi:10.3847/2041-8213/aa6838).

Jensen, J.J., Hoenig, S.F., Rakshit, S., Alonso-Herrero, A., Asmus, D., Gandhi, P., Kishimoto, M., Smette, A. and Tristram, K.R.W. (2017) PAH features within few hundred parsecs of active galactic nuclei. Monthly Notices of the Royal Astronomical Society, 470 (3), 3071-3094. (doi:10.1093/mnras/stx1447).

Gonzalez-Garcia, J., Alonso-Herrero, A., Hoenig, S.F., Hernan-Caballero, A., Ramos Almeida, C., Levenson, N.A., Roche, P.F., Gonzalez-Martin, O., Packham, C. and Kishimoto, M. (2017) A mid-infrared statistical investigation of clumpy torus model predictions. Monthly Notices of the Royal Astronomical Society, 470 (3), 2578-2598. (doi:10.1093/mnras/stx1361).

Fernandez-Ontiveros, J.A., Tristram, K.R.W., Hönig, S., Gandhi, P. and Weigelt, G. (2017) Embedded AGN and star formation in the central 80 pc of IC 3639. Astronomy & Astrophysics. (doi:10.1051/0004-6361/201731906).

Mandal, Amit Kumar, Rakshit, Suvendu, Kurian, Kshama S., Stalin, C. S., Mathew, Blesson, Hoenig, Sebastian, Gandhi, Poshak, Sagar, Ram and Pandge, M. B. (2018) Determination of the size of the dust torus in H0507+164 through optical and infrared monitoring. Monthly Notices of the Royal Astronomical Society. (doi:10.1093/mnras/sty200).

Pancoast, A., Barth, A.J., Horne, K., Treu, T., Brewer, B.J., Bennert, V.N., Canalizo, G., Gates, E.L., Li, W., Malkan, M.A., Sand, D., Schmidt, T., Valenti, S., Woo, J.H., Clubb, K.I., Cooper, M.C., Crawford, S.M., Hönig, S.F., Joner, M.D., Kandrashoff, M.T., Lazarova, M., Nierenberg, A.M., Romero-Colmenero, E., Son, D., Tollerud, E., Walsh, J.L. and Winkler, H. (2018) Stability of the Broad-line Region Geometry and Dynamics in Arp 151 over Seven Years. Astrophysical Journal, 856 (2), [108]. (doi:10.3847/1538-4357/aab3c6).

Vollmer, B., Schartmann, M., Burtscher, L., Marin, F., Hoenig, S., Davies, R. and Goosmann, R. (2018) Thick turbulent gas disks with magnetocentrifugal winds in active galactic nuclei - Model infrared emission and optical polarization. Astronomy & Astrophysics, 615. (doi:10.1051/0004-6361/201731133).

Alonso-Herrero, A., Pereira-Santaella, M., García-Burillo, S., Davies, R.I., Combes, F., Asmus, D., Bunker, A., Díaz-Santos, T., Gandhi, P., González-Martín, O., Hernán-Caballero, A., Hicks, E., Hönig, S., Labiano, A., Levenson, N.A., Packham, C., Ramos Almeida, C., Ricci, C., Rigopoulou, D., Rosario, D., Sani, E. and Ward, M.J. (2018) Resolving the nuclear obscuring disk in the Compton-thick Seyfert galaxy NGC5643 with ALMA. The Astrophysical Journal, 859 (2), [144]. (doi:10.3847/1538-4357/aabe30).

Tristram, Konrad R.W. and Hönig, Sebastian F. (2018) The success of extragalactic infrared interferometry: from what we have learned to what to expect. In Optical and Infrared Interferometry and Imaging VI. vol. 10701, SPIE.. (doi:10.1117/12.2314352).

Monnier, John D., Kraus, Stefan, Ireland, Michael J., Baron, Fabien, Bayo, Amelia, Berger, Jean Philippe, Creech-Eakman, Michelle, Dong, Ruobing, Duchêne, Gaspard, Espaillat, Catherine, Haniff, Chris, Hönig, Sebastian, Isella, Andrea, Juhasz, Attila, Labadie, Lucas, Lacour, Sylvestre, Leifer, Stephanie, Merand, Antoine, Michael, Ernest, Minardi, Stefano, Mordasini, Christoph, Mozurkewich, David, Olofsson, Johan, Paladini, Claudia, Petrov, Romain, Pott, Jörg Uwe, Ridgway, Stephen, Rinehart, Stephen, Stassun, Keivan, Surdej, Jean, Brummelaar, Theo Ten, Turner, Neal, Tuthill, Peter, Vahala, Kerry, van Belle, Gerard, Vasisht, Gautam, Wishnow, Ed, Young, John and Zhu, Zhaohuan (2018) The planet formation imager. Experimental Astronomy, 1-13. (doi:10.1007/s10686-018-9594-1).

Leftley, James H., Tristram, Konrad R.W., Hönig, Sebastian F., Kishimoto, Makoto, Asmus, Daniel and Gandhi, Poshak (2018) New evidence for the dusty wind model: Polar dust and a hot core in the type-1 Seyfert ESO 323-G77. Astrophysical Journal, 862 (17), [17]. (doi:10.3847/1538-4357/aac8e5).

Williams, Peter R., Pancoast, Anna, Treu, Tommaso, Brewer, Brendon J., Barth, Aaron J., Bennert, Vardha N., Buehler, Tabitha, Canalizo, Gabriela, Cenko, S. Bradley, Clubb, Kelsey I., Cooper, Michael C., Filippenko, Alexei V., Gates, Elinor, Hoenig, Sebastian F., Joner, Michael D., Kandrashoff, Michael T., Laney, Clifton David, Lazarova, Mariana S., Li, Weidong, Malkan, Matthew A., Rex, Jacob, Silverman, Jeffrey M., Tollerud, Erik, Walsh, Jonelle L. and Woo, Jong Hak (2018) The Lick AGN Monitoring Project 2011: dynamical modeling of the broad-line region. The Astrophysical Journal, 866 (2), 1-21, [75]. (doi:10.3847/1538-4357/aae086).

Hönig, Sebastian F., Herrero, Almudena Alonso, Gandhi, Poshak, Kishimoto, Makoto, Pott, Jörg Uwe, Almeida, Cristina Ramos, Surdej, Jean and Tristram, Konrad R.W. (2018) New active galactic nuclei science cases with interferometry: An incomplete preview. Experimental Astronomy, 46 (3), 413-419. (doi:10.1007/s10686-018-9612-3).

Sturm, E., Dexter, J., Pfuhl, O., Stock, M. R., Davies, R. I., Lutz, D., Clénet, Y., Eckart, A., Eisenhauer, F., Genzel, R., Gratadour, D., Hönig, S. F., Kishimoto, M., Lacour, S., Millour, F., Netzer, H., Perrin, G., Peterson, B. M., Petrucci, P. O., Rouan, D., Waisberg, I., Woillez, J., Amorim, A., Brandner, W., Schreiber, N. M.Förster, Garcia, P. J.V., Gillessen, S., Ott, T., Paumard, T., Perraut, K., Scheithauer, S., Straubmeier, C., Tacconi, L. J. and Widmann, F. (2018) Spatially resolved rotation of the broad-line region of a quasar at sub-parsec scale. Nature, 563 (7733), 657-660. (doi:10.1038/s41586-018-0731-9).

Rakshit, Suvendu, Johnson, Ansu, Stalin, C. S., Gandhi, Poshak and Hoenig, Sebastian (2019) WISE view of narrow-line Seyfert 1 galaxies: mid-infrared colour and variability. Monthly Notices of the Royal Astronomical Society, 483 (2), 2362-2370. (doi:10.1093/mnras/sty3261).

Williamson, David, Hoenig, Sebastian and Venanzi, Marta (2019) 3D radiation hydrodynamics of a dynamical torus. The Astrophysical Journal, 876 (2), 1-15, [137]. (doi:10.3847/1538-4357/ab17d5).

Hoenig, Sebastian (2019) Redefining the Torus: A unifying view of AGNs in the infrared and submillimeter. The Astrophysical Journal, 884 (2), [171]. (doi:10.3847/1538-4357/ab4591).

Leftley, James, Hoenig, Sebastian, Asmus, Daniel, Tristram, Konrad R.W., Gandhi, Poshak, Kishimoto, Makoto, Venanzi, Marta and Williamson, David (2019) Parsec-scale dusty winds in active galactic nuclei: Evidence for radiation pressure driving. The Astrophysical Journal, 886 (1), [55]. (doi:10.3847/1538-4357/ab4a0b).

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).

Alonso-Herrero, A., Pereira-Santaella, M., Rigopoulou, D., Garcia-Bernete, I., Dominguez-Fernandez, A.J., Combes, F., Davies, R.I., Diaz-Santos, T., Esparza-Arrendondo, D., Gonzalez-Martin, O., Hernan-Caballero, A., Hicks, E.K.S., Hoenig, S.F., Levenson, N.A., Ramos Almeida, C., Roche, P.F. and Rosario, D. (2020) Cold molecular gas and PAH emission in Seyfert galaxies. Astronomy & Astrophysics, 639, [A43]. (doi:10.1051/0004-6361/202037642).

Williamson, David, Hoenig, Sebastian and Venanzi, Marta (2020) Radiation hydrodynamics models of active galactic nuclei: beyond the central parsec. The Astrophysical Journal, 897 (1), [26]. (doi:10.3847/1538-4357/ab989e).

Dexter, J., Shangguan, J. and Hoenig, Sebastian , GRAVITY Collaboration (2020) The resolved size and structure of hot dust in the immediate vicinity of AGN. Astronomy & Astrophysics, 635, [A92]. (doi:10.1051/0004-6361/201936767).

Pfuhl, O., Davies, R. and Dexter, J. , GRAVITY Collaboration (2020) An image of the dust sublimation region in the nucleus of NGC 1068. Astronomy & Astrophysics, 634. (doi:10.1051/0004-6361/201936255).

Venanzi, Marta, Hoenig, Sebastian and Williamson, David (2020) The role of infrared radiation pressure in shaping dusty winds in AGN. Astrophysical Journal. (In Press)


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