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arXiv · 0904.3747

Host galaxy morphologies of X-ray selected AGN: assessing the significance of different black hole fueling mechanisms to the accretion density of the Universe at z~1

A. Georgakakis·A. L. Coil·E. S. Laird·R. L. Griffith·K. Nandra·J. M. Lotz·C. M. Pierce·M. C. Cooper·J. A. Newman·A. M. Koekemoer
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Abstract

We use morphological information of X-ray selected AGN hosts to set limits on the fraction of the accretion density of the Universe at z~1 that is not likely to be associated with major mergers. Deep X-ray observations are combined with high resolution optical data from the Hubble Space Telescope in the AEGIS, GOODS North and GOODS South fields to explore the morphological breakdown of X-ray sources in the redshift interval 0.5 1e44 erg/s) compared to predictions for the stochastic fueling of massive black holes in disk galaxies.

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A. Georgakakis, A. L. Coil, E. S. Laird, R. L. Griffith, K. Nandra, J. M. Lotz, C. M. Pierce, M. C. Cooper, J. A. Newman, A. M. Koekemoer. 2009-04-23. Host galaxy morphologies of X-ray selected AGN: assessing the significance of different black hole fueling mechanisms to the accretion density of the Universe at z~1. https://doi.org/10.1111/j.1365-2966.2009.14951.x

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