Title: Improving Cosmological Constraints from Galaxy Cluster Number Counts with CMB-cluster-lensing Data: Results from the SPT-SZ Survey and Forecasts for the Future

Abstract

We show the improvement to cosmological constraints from galaxy cluster surveys with the addition of cosmic microwave background (CMB)-cluster lensing data. We explore the cosmological implications of adding mass information from the 3.1 sigma detection of gravitational lensing of the CMB by galaxy clusters to the Sunyaev-Zel'dovich (SZ) selected galaxy cluster sample from the 2500 deg(2) SPT-SZ survey and targeted optical and X-ray follow-up data. In the ACDM model, the combination of the cluster sample with the Planck power spectrum measurements prefers sigma(8) (Omega(m)/0.3)(0.5) = 0.831 +/- 0.020. Adding the cluster data reduces the uncertainty on this quantity by a factor of 1.4, which is unchanged whether the 3.1 sigma CMB-cluster lensing measurement is included or not. We then forecast the impact of CMB-cluster lensing measurements with future cluster catalogs. Adding CMB-cluster lensing measurements to the SZ cluster catalog of the ongoing SPT-3G survey is expected to improve the expected constraint on the dark energy equation of state w by a factor of 1.3 to sigma(w) = 0.19. We find the largest improvements from CMB-cluster lensing measurements to be for sigma(8), where adding CMB-cluster lensing data to the cluster number counts reduces the expected uncertainty on sigma(8) by respective factorsmore » of 2.4 and 3.6 for SPT-3G and CMB-S4.« less

Authors:

Chaubal, P. S.; Reichardt, C. L. ;

• Search DOE PAGES for author "Reichardt, C. L."
• Search DOE PAGES for ORCID "0000-0003-2226-9169"

Gupta, N. ;

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• Search DOE PAGES for ORCID "0000-0001-7652-9451"

Ansarinejad, B.; Aylor, K.; Balkenhol, L.; Baxter, E. J. ;

• Search DOE PAGES for author "Baxter, E. J."
• Search DOE PAGES for ORCID "0000-0002-6836-3196"

Bianchini, F.; Benson, B. A.; Bleem, L. E.; Bocquet, S. ;

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• Search DOE PAGES for ORCID "0000-0002-4900-805X"

Carlstrom, J. E.; Chang, C. L.; Crawford, T. M. ;

• Search DOE PAGES for author "Crawford, T. M."
• Search DOE PAGES for ORCID "0000-0001-9000-5013"

Crites, A. T.; de Haan, T.; Dobbs, M. A. ;

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• Search DOE PAGES for ORCID "0000-0001-7166-6422"

Everett, W. B. ;

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• Search DOE PAGES for ORCID "0000-0002-5370-6651"

Floyd, B. ;

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• Search DOE PAGES for ORCID "0000-0003-4175-571X"

George, E. M.

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• Search DOE PAGES for ORCID "0000-0001-7874-0445"

more »; Halverson, N. W.; Holzapfel, W. L.; Hrubes, J. D.; Knox, L.; Lee, A. T.; Luong-Van, D.; McMahon, J. J.; Meyer, S. S. ;

• Search DOE PAGES for author "Meyer, S. S."
• Search DOE PAGES for ORCID "0000-0003-3315-4332"

Mocanu, L. M. ;

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• Search DOE PAGES for ORCID "0000-0002-2416-2552"

Mohr, J. J.; Natoli, T.; Padin, S.; Pryke, C.; Ruhl, J. E.; Ruppin, F. ;

• Search DOE PAGES for author "Ruppin, F."
• Search DOE PAGES for ORCID "0000-0002-0955-8954"

Salvati, L.; Saro, A.; Schaffer, K. K.; Shirokoff, E.; Staniszewski, Z.; Stark, A. A. ;

• Search DOE PAGES for author "Stark, A. A."
• Search DOE PAGES for ORCID "0000-0002-2718-9996"

Vieira, J. D. ;

• Search DOE PAGES for author "Vieira, J. D."
• Search DOE PAGES for ORCID "0000-0001-7192-3871"

Williamson, R. « less

Publication Date:

Fri Jun 03 00:00:00 EDT 2022

Research Org.:

Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:

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

Contributing Org.:

SPT Collaboration

OSTI Identifier:

1871050

Alternate Identifier(s):

OSTI ID: 1839552; OSTI ID: 1923894; OSTI ID: 1960011

Report Number(s):

FERMILAB-PUB-21-729-PPD; arXiv:2111.07491
Journal ID: ISSN 0004-637X

Grant/Contract Number:  

AC02- 06CH11357; AC02-07CH11359; AC02-05CH11231; AC02-06CH11357

Resource Type:

Published Article

Journal Name:

The Astrophysical Journal

Additional Journal Information:

Journal Name: The Astrophysical Journal Journal Volume: 931 Journal Issue: 2; Journal ID: ISSN 0004-637X

Publisher:

American Astronomical Society

Country of Publication:

United States

Language:

English

Subject:

79 ASTRONOMY AND ASTROPHYSICS; CMB; cluster lensing; cosmological parameters; cosmology:observations