Mean Occupation Function of High-redshift Quasars from the Planck Cluster Catalog

Chakraborty, Priyanka and Chatterjee, Suchetana and Dutta, Alankar and Myers, Adam D (2018) Mean Occupation Function of High-redshift Quasars from the Planck Cluster Catalog. In: PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 130 (988).

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Abstract

We characterize the distribution of quasars within dark matter halos using a direct measurement technique for the first time at redshifts as high as z similar to 1. Using the Planck Sunyaev-Zeldovich (SZ) catalog for galaxy groups and the Sloan Digital Sky Survey (SDSS) DR12 quasar data set, 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 +/- 0.01) log (M) - (32.77 +/- 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 similar to 1.

Item Type:	Journal Article
Publication:	PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
Publisher:	IOP PUBLISHING LTD, TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Additional Information:	Copy right for this article belong to IOP PUBLISHING LTD, TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	08 May 2018 19:04
Last Modified:	08 May 2018 19:04
URI:	http://eprints.iisc.ac.in/id/eprint/59810

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