publication . Article . Preprint . 2019

Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT

T. Shin; S. Adhikari; Eric J. Baxter; C. L. Chang; Bhuvnesh Jain; Nicholas Battaglia; Lindsey Bleem; Sebastian Bocquet; Joseph DeRose; Daniel Gruen; ...
Open Access
  • Published: 01 Aug 2019
  • Publisher: Oxford University Press (OUP)
Abstract
We present a detection of the splashback feature around galaxy clusters selected using their Sunyaev-Zel'dovich (SZ) signal. Recent measurements of the splashback feature around optically selected galaxy clusters have found that the splashback radius, $r_{\rm sp}$, is smaller than predicted by N-body simulations. A possible explanation for this discrepancy is that $r_{\rm sp}$ inferred from the observed radial distribution of galaxies is affected by selection effects related to the optical cluster-finding algorithms. We test this possibility by measuring the splashback feature in clusters selected via the SZ effect in data from the South Pole Telescope SZ survey...
Persistent Identifiers
Subjects
arXiv: Astrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy Astrophysics
free text keywords: Space and Planetary Science, Astronomy and Astrophysics, galaxies: clusters: general, galaxies: evolution, cosmology: observations, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, QB, observations [Cosmology], clusters: general [Galaxies], evolution [Galaxies], RCUK, STFC, /dk/atira/pure/subjectarea/asjc/3100/3103, Astronomy and Astrophysics, /dk/atira/pure/subjectarea/asjc/1900/1912, Space and Planetary Science, Astrophysics, Systematic error, Redshift, South Pole Telescope, Radial distribution, Physics, Galaxy cluster, Atacama Cosmology Telescope, Galaxy
Funded by
NSF| Collaborative Research: The Dark Energy Survey Data Management Operations
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1138766
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
,
EC| COSMICDAWN
Project
COSMICDAWN
Understanding the Origin of Cosmic Structure
  • Funder: European Commission (EC)
  • Project Code: 306478
  • Funding stream: FP7 | SP2 | ERC
,
NSERC
Project
  • Funder: Natural Sciences and Engineering Research Council of Canada (NSERC)
,
NSF| Center for Cosmological Physics
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 0114422
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Physics
,
NSF| Gravitational Physics from the Cosmic Microwave Background
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 0855887
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Physics
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