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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:
 [1];  [2];  [3];  [4]; ORCiD logo [5];  [1];  [6];  [7];  [8];  [9];  [2];  [10];  [8]; ORCiD logo [1];  [1];  [11];  [12];  [13];  [1];  [14] more »; ORCiD logo [15];  [16];  [8]; ORCiD logo [17];  [18]; ORCiD logo [17];  [19];  [20];  [21];  [1];  [22] « less
  1. Ludwig-Maximilians-Univ., Munich (Germany); Excellence Cluster Universe, Garching (Germany)
  2. Argonne National Lab. (ANL), Argonne, IL (United States). High-Energy Physics Division; Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics
  3. Argelander-Inst. fur Astronomie, Bonn (Germany)
  4. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics
  5. Leiden Univ. (Netherlands). Leiden Observatory
  6. Ludwig-Maximilians-Univ., Munich (Germany); Max-Planck-Inst. fur extraterrestrische Physik, Garching (Germany); Excellence Cluster Universe, Garching (Germany)
  7. Stanford Univ., CA (United States). Dept. of Physics; SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States). Kavli Inst. for Particle Astrophysics and Cosmology
  8. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  9. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics, and Dept. of Astronomy and Astrophysics; Univ. of Missouri, Columbia, MO (United States). Dept. of Physics and Astronomy
  10. Massachusetts Inst. of Technology, Cambridge, MA (United States). Kavli Inst. for Astrophysics and Space Research
  11. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics, and Dept. of Astronomy and Astrophysics; Univ. of Missouri, Kansas City, MO (United States). Dept. of Physics and Astronomy
  12. Univ. of Florida, Gainesville, FL (United States). Dept. of Astronomy
  13. Univ. of California, Berkeley, CA (United States). Dept. of Physics
  14. Stony Brook Univ., NY (United States). Dept. of Physics and Astronomy
  15. Stanford Univ., Stanford, CA (United States). Kavli Inst. for Particle Astrophysics and Cosmology
  16. Univ. of Arizona, Tucson, AZ (United States). Dept. of Physics
  17. Univ. of Melbourne, Parkville, VIC (Australia). School of Physics
  18. Univ. of Colorado, Boulder, CO (United States). Center for Astrophysics and Space Astronomy, Dept. of Astrophysical and Planetary Science; NASA Ames Research Center (ARC), Moffett Field, Mountain View, CA (United States)
  19. Ludwig-Maximilians-Univ., Munich (Germany); Excellence Cluster Universe, Garching (Germany); NASA Ames Research Center (ARC), Moffett Field, Mountain View, CA (United States)
  20. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States). Large Synoptic Survey Telescope (LSST)
  21. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
  22. Harvard Univ., Cambridge, MA (United States). Dept. of Physics
Publication Date:
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) (SC-25)
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; 1636142
Grant/Contract Number:  
AC02-07CH11359; AC02-06CH11357
Resource Type:
Journal Article: Published Article
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 483; Journal Issue: 3; 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: general; cosmology: observations

Citation Formats

Dietrich, J. P., Bocquet, S., Schrabback, T., Applegate, D., Hoekstra, H., Grandis, S., Mohr, J. J., Allen, S. W., Bayliss, M. B., Benson, B. A., Bleem, L. E., Brodwin, M., Bulbul, E., Capasso, R., Chiu, I., Crawford, T. M., Gonzalez, A. H., de Haan, T., Klein, M., von der Linden, A., Mantz, A. B., Marrone, D. P., McDonald, M., Raghunathan, S., Rapetti, D., Reichardt, C. L., Saro, A., Stalder, B., Stark, A., Stern, C., and Stubbs, C. Sunyaev–Zel’dovich effect and X-ray scaling relations from weak lensing mass calibration of 32 South Pole Telescope selected galaxy clusters. United States: N. p., 2018. Web. doi:10.1093/mnras/sty3088.
Dietrich, J. P., Bocquet, S., Schrabback, T., Applegate, D., Hoekstra, H., Grandis, S., Mohr, J. J., Allen, S. W., Bayliss, M. B., Benson, B. A., Bleem, L. E., Brodwin, M., Bulbul, E., Capasso, R., Chiu, I., Crawford, T. M., Gonzalez, A. H., de Haan, T., Klein, M., von der Linden, A., Mantz, A. B., Marrone, D. P., McDonald, M., Raghunathan, S., Rapetti, D., Reichardt, C. L., Saro, A., Stalder, B., Stark, A., Stern, C., & Stubbs, C. Sunyaev–Zel’dovich effect and X-ray scaling relations from weak lensing mass calibration of 32 South Pole Telescope selected galaxy clusters. United States. doi:10.1093/mnras/sty3088.
Dietrich, J. P., Bocquet, S., Schrabback, T., Applegate, D., Hoekstra, H., Grandis, S., Mohr, J. J., Allen, S. W., Bayliss, M. B., Benson, B. A., Bleem, L. E., Brodwin, M., Bulbul, E., Capasso, R., Chiu, I., Crawford, T. M., Gonzalez, A. H., de Haan, T., Klein, M., von der Linden, A., Mantz, A. B., Marrone, D. P., McDonald, M., Raghunathan, S., Rapetti, D., Reichardt, C. L., Saro, A., Stalder, B., Stark, A., Stern, C., and Stubbs, C. Thu . "Sunyaev–Zel’dovich effect and X-ray scaling relations from weak lensing mass calibration of 32 South Pole Telescope selected galaxy clusters". United States. doi:10.1093/mnras/sty3088.
@article{osti_1488616,
title = {Sunyaev–Zel’dovich effect and X-ray scaling relations from weak lensing mass calibration of 32 South Pole Telescope selected galaxy clusters},
author = {Dietrich, J. P. and Bocquet, S. and Schrabback, T. and Applegate, D. and Hoekstra, H. and Grandis, S. and Mohr, J. J. and Allen, S. W. and Bayliss, M. B. and Benson, B. A. and Bleem, L. E. and Brodwin, M. and Bulbul, E. and Capasso, R. and Chiu, I. and Crawford, T. M. and Gonzalez, A. H. and de Haan, T. and Klein, M. and von der Linden, A. and Mantz, A. B. and Marrone, D. P. and McDonald, M. and Raghunathan, S. and Rapetti, D. and Reichardt, C. L. and Saro, A. and Stalder, B. and Stark, A. and Stern, C. and Stubbs, C.},
abstractNote = {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.},
doi = {10.1093/mnras/sty3088},
journal = {Monthly Notices of the Royal Astronomical Society},
issn = {0035-8711},
number = 3,
volume = 483,
place = {United States},
year = {2018},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1093/mnras/sty3088

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