Cosmic evolution of quasar clustering: implications for the host haloes

By C. Porciani, M. Magliocchetti, P. Norberg. 2004

193 citations recorded by the source corpus.

We present detailed clustering measurements from the 2dF Quasi-Stellar Object Redshift Survey (2QZ) in the redshift range 0.8 < z < 2.1. Using a flux-limited sample of ∼14 000 objects with effective redshift z eff = 1.47, we estimate the quasar projected correlation function for separations 1 < r/ h −1 Mpc < 20. We find that the two-point correlation function in real space is well approximated by a power law with slope γ = 1.5 ± 0.2 and comoving correlation length r 0 = 4.8 +0.9 h −1 Mpc. Splitting the sample into three subsets based on redshift, we find evidence for an increase of the clustering amplitude with look-back time. For a fixed γ ,e v olution of r0 is detected at the 3.6σ confidence level. The ratio between the quasar correlation function and the mass autocorrelation function (derived adopting the concordance cosmological model) is found to be scale-independent. For a linear mass-clustering amplitude σ 8 = 0.8, the ‘bias parameter’ decreases from b � 3.9 at z eff = 1.89 to b � 1.8 at z eff = 1.06. From the observed abundance and clustering, we infer how quasars populate dark matter

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/bbab32d279795695e910deb9964f61a777d07fe7

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Citations in the corpus

Radio and millimeter continuum surveys and their astrophysical implications (2009, background): “If the effective mass of the dark matter haloes in which the sources reside does not depend on cosmic time, as found for optically selected quasars (Porciani et al. 2004; Croom et al. 2004), the predicted angular correlation function badly fails to reproduce the observed one.”
The 2dF-SDSS LRG and QSO survey: QSO clustering and the L-z degeneracy (2006, background): “5 T H E L – z D E G E N E R AC Y A few recent works have looked at the evolution of QSO clustering (e.g. Porciani et al. 2004; Croom et al. 2005; Myers et al. 2006).”
THE BULK OF THE BLACK HOLE GROWTH SINCE z ∼ 1 OCCURS IN A SECULAR UNIVERSE: NO MAJOR MERGER–AGN CONNECTION (2010, background): “Even so, the timescales involved for such a process can be as much as an order of magnitude larger than the typical quasar lifetime of 1-100 Myr (e.g., Porciani et al. 2004; Hopkins et al. 2005b; Shen et al. 2007).”
CLUSTERING OF LOW-REDSHIFT (z ⩽ 2.2) QUASARS FROM THE SLOAN DIGITAL SKY SURVEY (2008, methodology): “Independent analysis of the 2QZ data by Porciani et al. (2004) confirmed these findings.”
First Measurement of the Clustering Evolution of Photometrically Classified Quasars (2005, background): “Croom et al. (2005) find that UVX QSOs reside in halos of similar mass at every redshift (see also Porciani et al. 2004; Grazian et al. 2004), and quote this mass as MDMH ¼ (3:0 1:6) ; 1012 h 1 M .”
Fluorescent Lyα Emission from the High-Redshift Intergalactic Medium (2005, background): “Since optically selected quasars at high-z tend to sit within the most massive dark-matter halos formed at that epoch (Porciani et al. 2004), it is reasonable to expect that matter clusters (and moves with larger peculiar velocities) around them.”
The Large-Scale and Small-Scale Clustering of Lyman Break Galaxies at 3.5 ⩽ z ⩽ 5.5 from the GOODS Survey (2005, methodology): “The HOD formalism has been successfully applied to various local galaxy samples (e.g., different luminosities, colors, spectral types, etc.; Zehavi et al. 2004b;Magliocchetti et al. 2003) and also at intermediate redshift (QSOs; Porciani et al. 2004).”
He ii REIONIZATION AND ITS EFFECT ON THE INTERGALACTIC MEDIUM (2008, background): “The clustering of these objects reveals that optically selected quasars reside in halos with m ≈ 1012 M⊙, independent of their luminosity (Porciani et al. 2004; Croom et al. 2005).”
The Luminosity and Color Dependence of the Galaxy Correlation Function (2004, methodology): “…been applied to interpret clustering data from a number of surveys at low and high redshift (e.g., Jing & Börner 1998; Jing et al. 2002; Bullock et al. 2002; Moustakas & Somerville 2002; van den Bosch et al. 2003b; Magliocchetti & Porciani 2003; Yan et al. 2003; Zheng 2004; Porciani et al. 2004).”
The Coevolution of Galaxies and Supermassive Black Holes: Insights from Surveys of the Contemporary Universe (2014, methodology): “The 2dF and SDSS QSO redshift surveys have been used to study the dark matter haloes of powerful AGN to even higher redshifts (Porciani et al. 2004, Croom et al. 2005, Ross et al. 2009).”