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Cosmic Evolution of Quasar Clustering: Implications for the Host Haloes

Cristiano Porciani·Manuela Magliocchetti·Peder Norberg
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Abstract

We present detailed clustering measurements from the 2dF QSO Redshift Survey (2QZ) in the redshift range 0.8 10^{12} M_sun and that the mean mass of their host haloes is of the order of 10^{13} M_sun. The observed clustering is consistent with assuming that the locally observed correlation between black-hole mass and host-galaxy circular velocity is still valid at z>1. From the fraction of haloes which contain active quasars, we infer that the characteristic quasar lifetime is t_Q ~ a few x 10^7 yr at z~1 and approaches 10^8 yr at higher redshifts.

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Cristiano Porciani, Manuela Magliocchetti, Peder Norberg. 2004-09-15. Cosmic Evolution of Quasar Clustering: Implications for the Host Haloes. https://doi.org/10.1111/j.1365-2966.2004.08408.x

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