Journal article
Shocks in the stacked Sunyaev-Zel'dovich profiles of clusters II: Measurements from SPT-SZ plus Planck Compton-y map
D Anbajagane, C Chang, B Jain, S Adhikari, EJ Baxter, BA Benson, LE Bleem, S Bocquet, MS Calzadilla, JE Carlstrom, CL Chang, R Chown, TM Crawford, AT Crites, W Cui, T de Haan, L Di Mascolo, MA Dobbs, WB Everett, EM George Show all
Monthly Notices of the Royal Astronomical Society | Royal Astronomical Society | Published : 2022
Abstract
We search for the signature of cosmological shocks in stacked gas pressure profiles of galaxy clusters using data from the South Pole Telescope (SPT). Specifically, we stack the latest Compton-y maps from the 2500 deg2 SPT-SZ survey on the locations of clusters identified in that same data set. The sample contains 516 clusters with mean mass ⟨M200m⟩=1014.9M⊙ and redshift 〈z〉 = 0.55. We analyse in parallel a set of zoom-in hydrodynamical simulations from THE THREE HUNDRED project. The SPT-SZ data show two features: (i) a pressure deficit at R/R200m = 1.08 ± 0.09, measured at 3.1σ significance and not observed in the simulations, and; (ii) a sharp decrease in pressure at R/R200m = 4.58 ± 1.24 ..
View full abstractGrants
Awarded by National Science Foundation Graduate Research Fellowship
Awarded by DOE
Awarded by NASA ATP Grant
Awarded by European Research Council
Awarded by STFC AGP Grant
Awarded by China Manned Space Project
Awarded by ERC-StG 'ClustersXCosmo' grant
Awarded by Australian Research Council
Awarded by FARE-MIUR grant 'ClustersXEuclid'
Awarded by National Science Foundation (NSF)
Funding Acknowledgements
e thank Tara DaCunha and Abigail Lee for their initial exploratory analyses of tSZ profiles in the Planck data set. We thank Greg Bryan, Damiano Caprioli, Mark Devlin, Andrey Kravtsov, Congyao Zhang, and Irina Zhuravleva for helpful discussions on gas physics in clusters, Shivam Pandey for discussions on the theoretical modelling of the tSZ profiles, Tae-Hyeon Shin for providing us with the SPT-SZ log-derivative curves from S19, and Maya Mallaby-Kay for kindly helping us navigate the PIXELL software library. We also thank the anonymous referee for raising useful points that added to the discussion presented here. Finally, we are grateful to the SPT-SZ, ACTPol, and Planck collaborations for making their data products publicly available to the community. This project strongly benefited from the free-flow of information across surveys and collaborations. We additionally thank Colin Hill and Mathew Madhavacheril for their generous support in including the ACT data in this study. DA is supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE 1746045. CC is supported by the Henry Luce Foundation and DOE grant DE-SC0021949. BJ is supported in part by NASA ATP Grant No. NNH17ZDA001N and DOE Grant No. DE-SC0007901. WC is supported by the European Research Council under grant number 670193 and by the STFC AGP Grant ST/V000594/1. He further acknowledges the science research grants from the China Manned Space Project with NO. CMS-CSST-2021-A01 and CMS-CSST-2021-B01. LDM is supported by the ERC-StG `ClustersXCosmo' grant agreement 716762. CR acknowledges support from the Australian Research Council Discovery Projects scheme (DP200101068). AS is supported by the ERC-StG `ClustersXCosmo' grant agreement 716762, by the FARE-MIUR grant 'ClustersXEuclid' R165SBKTMA, and by INFN InDark Grant. The South Pole Telescope program is supported by the National Science Foundation (NSF) through award OPP-1852617. All analysis in this work was enabled greatly by the following software: PANDAS (McKinney 2011), NUMPY (Van der Walt, Colbert & Varoquaux 2011), SCIPY (Virtanen et al. 2020), and MATPLOTLIB (Hunter 2007). We have also used the Astrophysics Data Service (ADS) and arXiv preprint repository extensively during this project and the writing of the paper.