Abstract
We cross-correlate a cosmic microwave background (CMB) lensing map with the projected space densities of quasars to measure the bias and halo masses of a quasar sample split into obscured and unobscured populations, the first application of this method to distinct quasar subclasses. Several recent studies of the angular clustering of obscured quasars have shown that these objects likely reside in higher mass haloes compared to their unobscured counterparts. This has important implications for models of the structure and geometry of quasars, their role in growing supermassive black holes, and mutual quasar/host galaxy evolution. However, the magnitude and significance of this difference has varied from study to study. Using data from Planck, WISE, and Sloan Digital Sky Survey, we follow up on these results using the independent method of CMB lensing cross-correlations
Original language | English |
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Pages (from-to) | 3492-3501 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 446 |
Issue number | 4 |
Early online date | 8 Dec 2014 |
DOIs | |
Publication status | Published - Feb 2015 |