publication . Other literature type . Article . 2019

Mass Calibration of Optically Selected DES Clusters Using a Measurement of CMB-cluster Lensing with SPTpol Data

Raghunathan, S.; Patil, S.; Baxter, E.; Benson, B. A.; Bleem, L. E.; Chou, T. L.; Crawford, T. M.; Holder, G. P.; McClintock, T.; Reichardt, C. L.; ...
Open Access
  • Published: 20 Feb 2019
  • Publisher: American Astronomical Society
  • Country: France
Abstract
We use cosmic microwave background (CMB) temperature maps from the 500 deg$^{2}$ SPTpol survey to measure the stacked lensing convergence of galaxy clusters from the Dark Energy Survey (DES) Year-3 redMaPPer (RM) cluster catalog. The lensing signal is extracted through a modified quadratic estimator designed to be unbiased by the thermal Sunyaev-Zel{'}dovich (tSZ) effect. The modified estimator uses a tSZ-free map, constructed from the SPTpol 95 and 150 GHz datasets, to estimate the background CMB gradient. For lensing reconstruction, we employ two versions of the RM catalog: a flux-limited sample containing 4003 clusters and a volume-limited sample with 1741 cl...
Persistent Identifiers
Subjects
arXiv: Astrophysics::Cosmology and Extragalactic Astrophysics
free text keywords: Space and Planetary Science, Astronomy and Astrophysics, gravitational lensing: weak, galaxies: clusters: general, cosmic background radiation, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Physics, Dark energy, Cluster (physics), Galaxy cluster, Astrophysics, Scaling, Cosmic microwave background, Estimator, Galaxy, Flux
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