Title: Sunyaev–Zel’dovich effect and X-ray scaling relations from weak lensing mass calibration of 32 South Pole Telescope selected galaxy clusters

Abstract

Uncertainty in the mass-observable scaling relations is currently the limiting factor for galaxy cluster based cosmology. Weak gravitational lensing can provide a direct mass calibration and reduce the mass uncertainty. We present new ground-based weak lensing observations of 19 South Pole Telescope (SPT) selected clusters and combine them with previously reported space-based observations of 13 galaxy clusters to constrain the cluster mass scaling relations with the Sunyaev-Zel'dovich effect (SZE), the cluster gas mass $$M_\mathrm{gas}$$, and $$Y_\mathrm{X}$$, the product of $$M_\mathrm{gas}$$ and X-ray temperature. We extend a previously used framework for the analysis of scaling relations and cosmological constraints obtained from SPT-selected clusters to make use of weak lensing information. Here, we introduce a new approach to estimate the effective average redshift distribution of background galaxies and quantify a number of systematic errors affecting the weak lensing modelling. These errors include a calibration of the bias incurred by fitting a Navarro-Frenk-White profile to the reduced shear using $$N$$-body simulations. We blind the analysis to avoid confirmation bias. We are able to limit the systematic uncertainties to 6.4% in cluster mass (68% confidence). Our constraints on the mass-X-ray observable scaling relations parameters are consistent with those obtained by earlier studies, and our constraints for the mass-SZE scaling relation are consistent with the the simulation-based prior used in the most recent SPT-SZ cosmology analysis. We can now replace the external mass calibration priors used in previous SPT-SZ cosmology studies with a direct, internal calibration obtained on the same clusters.

Authors:

Dietrich, J. P. ^[1]; Bocquet, S. ^[2]; Schrabback, T. ^[3]; Applegate, D. ^[4]; Hoekstra, H.  ^[5];

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• Search DOE PAGES for ORCID "0000-0002-0641-3231"

Grandis, S. ^[1]; Mohr, J. J. ^[6]; Allen, S. W. ^[7]; Bayliss, M. B. ^[8]; Benson, B. A. ^[9]; Bleem, L. E. ^[2]; Brodwin, M. ^[10]; Bulbul, E. ^[8]; Capasso, R.  ^[1];

• Search DOE PAGES for author "Capasso, R."
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Chiu, I. ^[1]; Crawford, T. M. ^[11]; Gonzalez, A. H. ^[12]; de Haan, T. ^[13]; Klein, M. ^[1]; von der Linden, A. ^[14] more »; Mantz, A. B.  ^[15];

• Search DOE PAGES for author "Mantz, A. B."
• Search DOE PAGES for ORCID "0000-0002-8031-1217"

Marrone, D. P. ^[16]; McDonald, M. ^[8]; Raghunathan, S.  ^[17];

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• Search DOE PAGES for ORCID "0000-0003-1405-378X"

Rapetti, D. ^[18]; Reichardt, C. L.  ^[17];

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• Search DOE PAGES for ORCID "0000-0003-2226-9169"

Saro, A. ^[19]; Stalder, B. ^[20]; Stark, A. ^[21]; Stern, C. ^[1]; Stubbs, C. ^[22] « less

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+ Show Author Affiliations

1. Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr. 1, D-81679 Munich, Germany, Excellence Cluster Universe, Boltzmannstr. 2, D-85748 Garching, Germany
2. Argonne National Laboratory, High-Energy Physics Division, 9700 S. Cass Avenue, Argonne, IL 60439, USA, Kavli Institute for Cosmological Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA
3. Argelander-Institut für Astronomie, Auf dem Hügel 71, D-53121 Bonn, Germany
4. Kavli Institute for Cosmological Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA
5. Leiden Observatory, Leiden University, Niels Bohrweg 2, 2300 CA Leiden, the Netherlands
6. Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr. 1, D-81679 Munich, Germany, Excellence Cluster Universe, Boltzmannstr. 2, D-85748 Garching, Germany, Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr., D-85748 Garching, Germany
7. Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA, Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA
8. Fermi National Accelerator Laboratory, Batavia, IL 60510-0500, USA
9. Department of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA, Department of Physics and Astronomy, University of Missouri, 5110 Rockhill Road, Kansas City, MO 64110, USA, Kavli Institute for Cosmological Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA
10. Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
11. Kavli Institute for Cosmological Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA, Department of Physics and Astronomy, University of Missouri, 5110 Rockhill Road, Kansas City, MO 64110, USA
12. Department of Astronomy, University of Florida, Gainesville, FL 32611, USA
13. Department of Physics, University of California, Berkeley, CA 94720, USA
14. Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794, USA
15. Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA, Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA
16. Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
17. School of Physics, University of Melbourne, Parkville, VIC 3010, Australia
18. Center for Astrophysics and Space Astronomy, Department of Astrophysical and Planetary Science, University of Colorado, Boulder, CO 80309, USA, NASA Ames Research Center, Moffett Field, CA 94035, USA
19. Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr. 1, D-81679 Munich, Germany, Excellence Cluster Universe, Boltzmannstr. 2, D-85748 Garching, Germany, INAF–Osservatorio Astronomico di Trieste, via G. B. Tiepolo 11, I-34143 Trieste, Italy
20. LSST, 950 North Cherry Avenue, Tucson, AZ 85719, USA
21. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
22. Department of Physics, Harvard University, 17 Oxford Street, Cambridge, MA 02138, USA

Publication Date:

Thu Dec 20 00:00:00 EST 2018

Research Org.:

Argonne National Lab. (ANL), Argonne, IL (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Sponsoring Org.:

USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Org.:

SPT

OSTI Identifier:

1488616

Alternate Identifier(s):

OSTI ID: 1413679

Report Number(s):

arXiv:1711.05344; FERMILAB-PUB-17-557-AE
Journal ID: ISSN 0035-8711

Grant/Contract Number:  

AC02-06CH11357; AC02-07CH11359

Resource Type:

Published Article

Journal Name:

Monthly Notices of the Royal Astronomical Society

Additional Journal Information:

Journal Name: Monthly Notices of the Royal Astronomical Society Journal Volume: 483 Journal Issue: 3; Journal ID: ISSN 0035-8711

Publisher:

Oxford University Press

Country of Publication:

United Kingdom

Language:

English

Subject:

79 ASTRONOMY AND ASTROPHYSICS; gravitational lensing: weak; galaxies: clusters: general; cosmology: observations