Low accretion rates at the AGN cosmic downsizing epoch

Low accretion rates at the AGN cosmic downsizing epoch

Context: X-ray surveys of Active Galactic Nuclei (AGN) indicate `cosmic downsizing', with the comoving number density of high-luminosity objects peaking at higher redshifts (z about 2) than low-luminosity AGN (z<1). Aims: We test whether downsizing is caused by activity shifting towards...

书目详细资料
Main Authors:	Babic, A, Miller, L, Jarvis, M, Turner, T, Alexander, D, Croom, S
格式:	Journal article
语言:	English
出版:	2007

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