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arXiv · 1801.06522

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

Priyanka Chakraborty·Suchetana Chatterjee·Alankar Dutta·Adam D. Myers
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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 $\log\left = (2.11 \pm 0.01) \log (M) -(32.77 \pm 0.11)$ 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 $z\sim 1$.

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Priyanka Chakraborty, Suchetana Chatterjee, Alankar Dutta, Adam D. Myers. 2018-01-19. Mean Occupation Function of High Redshift Quasars from the Planck Cluster Catalog. https://doi.org/10.1088/1538-3873%2Faaab3e

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