Mean Occupation Function of High Redshift Quasars from the Planck Cluster Catalog

Abstract

We characterise the distribution of quasars within dark matter halos using a direct measurement technique for the first time at redshifts as high as $z\sim 1$. Using the Planck Sunyaev-Zeldovich (SZ) catalogue for galaxy groups and the Sloan Digital Sky Survey (SDSS) DR12 quasar dataset, we assign host clusters/groups to the quasars and make a measurement of the mean number of quasars within dark matter halos as a function of halo mass. We find that a simple power-law fit of $\log ⟨N⟩=(2.11\pm 0.01)\log (M)-(32.77\pm 0.11)$ can be used to model the quasar fraction in dark matter halos. This suggests that the quasar fraction increases monotonically as a function of halo mass even to redshifts as high as $z\sim 1$.

Accepted for publication in PASP

References in corpus (13)

• Direct cosmological simulations of the growth of black holes and galaxies
• Clustering of High Redshift ($z\ge 2.9$) Quasars from the Sloan Digital Sky Survey
• Data analysis recipes: Fitting a model to data
• Clustering Analyses of 300,000 Photometrically Classified Quasars--I. Luminosity and Redshift Evolution in Quasar Bias
• Clustering Analyses of 300,000 Photometrically Classified Quasars--II. The Excess on Very Small Scales
• The Spatial Clustering of ROSAT All-Sky Survey AGN: I. The cross-correlation function with SDSS Luminous Red Galaxies
• The clustering of radio galaxies at z~0.55 from the 2SLAQ LRG survey
• Clustering on very small scales from a large sample of confirmed quasar pairs: Does quasar clustering track from Mpc to kpc scales?
• Luminous Red Galaxy Population in Clusters at $0.2\le z\le 0.6$
• The Halo Occupation Distribution of Obscured Quasars: Revisiting the Unification Model
• Sunyaev-Zel'dovich Signal from Quasar Hosts: Implications for Detection of Quasar Feedback
• Constraining the X-ray AGN halo occupation distribution: implications for eROSITA
• Halo Occupation Distribution of Infrared Selected Quasars

Cited by in corpus (1)

• X-ray spectroscopy in the microcalorimeter era II: A new Diagnostic on Column Density from the Case A to B Transition in H- and He-like Iron