Galaxy formation and evolution

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AGN feedback using AMR cosmological simulations

(2011)

Authors:

Yohan Dubois, Julien Devriendt, Adrianne Slyz, Romain Teyssier
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Local Luminous Infrared Galaxies. II. AGN Activity from Spitzer/IRS spectra

(2011)

Authors:

Almudena Alonso-Herrero, Miguel Pereira-Santaella, George H Rieke, Dimitra Rigopoulou
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GOODS-Herschel~: Gas-to-dust mass ratios and CO-to-H_2 conversion factors in normal and starbursting galaxies at high-z

(2011)

Authors:

Georgios E Magdis, E Daddi, E Elbaz, M Sargent, M Dickinson, H Dannerbauer, H Aussel, F Walter, HS Hwang, V Charmandaris, J Hodge, D Riechers, D Rigopoulou, C Carilli, M Pannella, J Mullaney, R Leiton, D Scott
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Very Strong Emission-Line Galaxies in the WISP Survey and Implications for High-Redshift Galaxies

(2011)

Authors:

H Atek, B Siana, C Scarlata, M Malkan, P McCarthy, H Teplitz, A Henry, J Colbert, C Bridge, AJ Bunker, A Dressler, R Fosbury, NP Hathi, C Martin, NR Ross, H Shim
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A new model for the infrared emission of IRAS F10214+4724

Proceedings of the International Astronomical Union 7:S284 (2011) 205-209

Authors:

A Efstathiou, N Christopher, A Verma, R Siebenmorgen

Abstract:

We present a new model for the infrared emission of the high redshift hyperluminous infrared galaxy IRAS F10214+4724 which takes into account recent photometric data from Spitzer and Herschel that sample the peak of its spectral energy distribution. We first demonstrate that the combination of the AGN tapered disc and starburst models of Efstathiou and coworkers, while able to give an excellent fit to the average spectrum of type 2 AGN measured by Spitzer, fails to match the spectral energy distribution of IRAS F10214+4724. This is mainly due to the fact that the ν S ν distribution of the galaxy falls very steeply with increasing frequency (a characteristic of heavy absorption by dust) but shows a silicate feature in emission. We propose a model that assumes two components of emission: clouds that are associated with the narrow-line region and a highly obscured starburst. The emission from the clouds must suffer significantly stronger gravitational lensing compared to the emission from the torus to explain the observed spectral energy distribution. © 2012 International Astronomical Union.
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