@article{5636f095ef364550b8da3bd044225e2d,
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 3.1σ detection of gravitational lensing of the CMB by galaxy clusters to the Sunyaev-Zel'dovich (SZ) selected galaxy cluster sample from the 2500 deg2 SPT-SZ survey and targeted optical and X-ray follow-up data. In the ΛCDM model, the combination of the cluster sample with the Planck power spectrum measurements prefers σ8ωm/0.30.5=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 3.1σ 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 σ(w) = 0.19. We find the largest improvements from CMB-cluster lensing measurements to be for σ 8, where adding CMB-cluster lensing data to the cluster number counts reduces the expected uncertainty on σ 8 by respective factors of 2.4 and 3.6 for SPT-3G and CMB-S4.",
author = "Chaubal, {P. S.} and Reichardt, {C. L.} and N. Gupta and B. Ansarinejad and K. Aylor and L. Balkenhol and Baxter, {E. J.} and F. Bianchini and Benson, {B. A.} and Bleem, {L. E.} and S. Bocquet and Carlstrom, {J. E.} and Chang, {C. L.} and Crawford, {T. M.} and Crites, {A. T.} and {De Haan}, T. and Dobbs, {M. A.} and Everett, {W. B.} and B. Floyd and George, {E. M.} and Halverson, {N. W.} and Holzapfel, {W. L.} and Hrubes, {J. D.} and L. Knox and Lee, {A. T.} and D. Luong-Van and McMahon, {J. J.} and Meyer, {S. S.} and Mocanu, {L. M.} and Mohr, {J. J.} and T. Natoli and S. Padin and C. Pryke and Ruhl, {J. E.} and F. Ruppin and L. Salvati and A. Saro and Schaffer, {K. K.} and E. Shirokoff and Z. Staniszewski and Stark, {A. A.} and Vieira, {J. D.} and R. Williamson",
note = "Funding Information: The South Pole Telescope program is supported by the National Science Foundation (NSF) through award OPP-1852617. Argonne National Laboratory{\textquoteright}s work was supported by the U.S. Department of Energy, Office of High Energy Physics, under contract DE-AC02-06CH11357. We also acknowledge support from the Argonne Center for Nanoscale Materials. The Melbourne group acknowledges support from the Australian Research Council{\textquoteright}s Discovery Projects scheme (DP200101068). A.A.S. acknowledges support by U.S. National Science Foundation grant AST-1814719. A.S. is supported by the FARE-MIUR grant “ClustersXEuclid” R165SBKTMA, INFN InDark, and by the ERC-StG “ClustersXCosmo” grant agreement 716762. The data analysis pipeline also uses the scientific Python stack (Jones et al. ; Hunter ; van der Walt et al. ). We acknowledge the use of the Spartan, a high performance computing facility at the University of Melbourne (Lafayette et al. ). Publisher Copyright: {\textcopyright} 2022. The Author(s). Published by the American Astronomical Society.",
year = "2022",
month = jun,
day = "1",
doi = "10.3847/1538-4357/ac6a55",
language = "English (US)",
volume = "931",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "2",
}