AGN Outflows in a Cosmological Context

Abstract

We combine cosmological simulations with an AGN luminosity function constrained by optical surveys in order to create a realistic AGN distribution in which to model AGN outflows. The outflows are modeled with assumptions of spherical symmetry and energy conservation. We study the importance of the kinetic luminosity of AGN outflows in determining the fractional volume of the IGM filled with outflows as a function of redshift. We find that kinetic luminosities of < 10% of the bolometric luminosities are required or the entire IGM would be filled with outflows at z=0. We also examine the effects of varying the AGN lifetime and the bias parameter, which describes how tightly correlated AGN are to high density regions. We find that longer lifetimes (tau_{AGN} ~ 1 Gyr), as well as small bias parameters increase the filling fraction.

23 pages, 10 figures, accepted for publication in ApJ

References in corpus (7)

• The Cosmic Evolution of Hard X-ray Selected Active Galactic Nuclei
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• Anisotropic AGN Outflows and Enrichment of the Intergalactic Medium
• Testing Models of the Individual and Cosmological Evolutions of Powerful Radio Galaxies
• Testing Models of Radio Galaxy Evolution and the Cosmological Impact of FR II Radio Galaxies
• The Ubiquitous Imprint of Radiative Acceleration in the Mean Absorption Spectrum of Quasar Outflows
• Anisotropic AGN Outflows and Enrichment of the Intergalactic Medium. II. Metallicity
• Large Scale Impact of the Cosmological Population of Expanding Radio Galaxies
• AGN Outflows and the Matter Power Spectrum
• Superdisks in Radio Galaxies: Jet-Wind Interactions
• Galactic Outflows and Evolution of the Interstellar Medium
• Discovery of two broad absorption line quasars at redshift about 4.75 using the Lijiang 2.4m telescope