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Title: Weighing the giants– V. Galaxy cluster scaling relations

Abstract

Here, we present constraints on the scaling relations of galaxy cluster X-ray luminosity, temperature and gas mass (and derived quantities) with mass and redshift, employing masses from robust weak gravitational lensing measurements. These are the first such results obtained from an analysis that simultaneously accounts for selection effects and the underlying mass function, and directly incorporates lensing data to constrain total masses. Our constraints on the scaling relations and their intrinsic scatters are in good agreement with previous studies, and reinforce a picture in which departures from self-similar scaling laws are primarily limited to cluster cores. However, the data are beginning to reveal new features that have implications for cluster astrophysics and provide new tests for hydrodynamical simulations. We find a positive correlation in the intrinsic scatters of luminosity and temperature at fixed mass, which is related to the dynamical state of the clusters. While the evolution of the nominal scaling relations over the redshift range 0.0 < z < 0.5 is consistent with self-similarity, we find tentative evidence that the luminosity and temperature scatters, respectively, decrease and increase with redshift. Physically, this likely related to the development of cool cores and the rate of major mergers. We also examinemore » the scaling relations of redMaPPer richness and Compton Y from Planck. While the richness–mass relation is in excellent agreement with recent work, the measured Y–mass relation departs strongly from that assumed in the Planck cluster cosmology analysis. Furthermore, the latter result is consistent with earlier comparisons of lensing and Planck scaling relation-derived masses.« less

Authors:
 [1];  [2];  [2];  [3];  [4];  [5];  [2];  [6];  [6]
  1. Stanford Univ., Stanford, CA (United States)
  2. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  3. Stanford Univ., Stanford, CA (United States); Stony Brook Univ., Stony Brook, NY (United States)
  4. Argelander-Institute for Astronomy, Bonn (Germany)
  5. Univ. of California, Berkeley, CA (United States)
  6. Institute of Astronomy, Honolulu, HI (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab. (SLAC), Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1361148
Grant/Contract Number:
AC02-76SF00515
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 463; Journal Issue: 4; Journal ID: ISSN 0035-8711
Publisher:
Royal Astronomical Society
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; gravitational lensing: weak; galaxies: clusters: intracluster medium; X-rays: galaxies: clusters

Citation Formats

Mantz, Adam B., Allen, Steven W., Morris, R. Glenn, von der Linden, Anja, Applegate, Douglas E., Kelly, Patrick L., Burke, David L., Donovan, David, and Ebeling, Harald. Weighing the giants– V. Galaxy cluster scaling relations. United States: N. p., 2016. Web. doi:10.1093/mnras/stw2250.
Mantz, Adam B., Allen, Steven W., Morris, R. Glenn, von der Linden, Anja, Applegate, Douglas E., Kelly, Patrick L., Burke, David L., Donovan, David, & Ebeling, Harald. Weighing the giants– V. Galaxy cluster scaling relations. United States. doi:10.1093/mnras/stw2250.
Mantz, Adam B., Allen, Steven W., Morris, R. Glenn, von der Linden, Anja, Applegate, Douglas E., Kelly, Patrick L., Burke, David L., Donovan, David, and Ebeling, Harald. Wed . "Weighing the giants– V. Galaxy cluster scaling relations". United States. doi:10.1093/mnras/stw2250. https://www.osti.gov/servlets/purl/1361148.
@article{osti_1361148,
title = {Weighing the giants– V. Galaxy cluster scaling relations},
author = {Mantz, Adam B. and Allen, Steven W. and Morris, R. Glenn and von der Linden, Anja and Applegate, Douglas E. and Kelly, Patrick L. and Burke, David L. and Donovan, David and Ebeling, Harald},
abstractNote = {Here, we present constraints on the scaling relations of galaxy cluster X-ray luminosity, temperature and gas mass (and derived quantities) with mass and redshift, employing masses from robust weak gravitational lensing measurements. These are the first such results obtained from an analysis that simultaneously accounts for selection effects and the underlying mass function, and directly incorporates lensing data to constrain total masses. Our constraints on the scaling relations and their intrinsic scatters are in good agreement with previous studies, and reinforce a picture in which departures from self-similar scaling laws are primarily limited to cluster cores. However, the data are beginning to reveal new features that have implications for cluster astrophysics and provide new tests for hydrodynamical simulations. We find a positive correlation in the intrinsic scatters of luminosity and temperature at fixed mass, which is related to the dynamical state of the clusters. While the evolution of the nominal scaling relations over the redshift range 0.0 < z < 0.5 is consistent with self-similarity, we find tentative evidence that the luminosity and temperature scatters, respectively, decrease and increase with redshift. Physically, this likely related to the development of cool cores and the rate of major mergers. We also examine the scaling relations of redMaPPer richness and Compton Y from Planck. While the richness–mass relation is in excellent agreement with recent work, the measured Y–mass relation departs strongly from that assumed in the Planck cluster cosmology analysis. Furthermore, the latter result is consistent with earlier comparisons of lensing and Planck scaling relation-derived masses.},
doi = {10.1093/mnras/stw2250},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 4,
volume = 463,
place = {United States},
year = {Wed Sep 07 00:00:00 EDT 2016},
month = {Wed Sep 07 00:00:00 EDT 2016}
}

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Cited by: 13works
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