Mapping gas around massive galaxies: cross-correlation of DES Y3 galaxies and Compton-y maps from SPT and Planck. Issue 2 (20th April 2023)

• Record Type: Journal Article
• Authors: Sánchez, J; Omori, Y; Chang, C; Bleem, L E; Crawford, T; Drlica-Wagner, A; Raghunathan, S; Zacharegkas, G; Abbott, T M C; Aguena, M; Alarcon, A; Allam, S; Alves, O; Amon, A; Avila, S; Baxter, E; Bechtol, K; Benson, B A; Bernstein, G M; Bertin, E; Bocquet, S; Brooks, D; Burke, D L; Campos, A; Carlstrom, J E; Rosell, A Carnero; Kind, M Carrasco; Carretero, J; Castander, F J; Cawthon, R; Chang, C L; Chen, A; Choi, A; Chown, R; Costanzi, M; Crites, A T; Crocce, M; da Costa, L N; Pereira, M E S; de Haan, T; De Vicente, J; DeRose, J; Desai, S; Diehl, H T; Dobbs, M A; Dodelson, S; Doel, P; Elvin-Poole, J; Everett, W; Everett, S; Ferrero, I; Flaugher, B; Fosalba, P; Frieman, J; García-Bellido, J; Gatti, M; George, E M; Gerdes, D W; Giannini, G; Gruen, D; Gruendl, R A; Gschwend, J; Gutierrez, G; Halverson, N W; Hinton, S R; Holder, G P; Hollowood, D L; Holzapfel, W L; Honscheid, K; Hrubes, J D; James, D J; Knox, L; Kuehn, K; Kuropatkin, N; Lahav, O; Lee, A T; Luong-Van, D; MacCrann, N; Marshall, J L; McCullough, J; McMahon, J J; Melchior, P; Mena-Fernández, J; Menanteau, F; Miquel, R; Mocanu, L; Mohr, J J; Muir, J; Myles, J; Natoli, T; Padin, S; Palmese, A; Pandey, S; Paz-Chinchón, F; Pieres, A; Malagón, A A Plazas; Porredon, A; Pryke, C; Raveri, M; Reichardt, C L; Rodriguez-Monroy, M; Ross, A J; Ruhl, J E; Rykoff, E; Sánchez, C; Sanchez, E; Scarpine, V; Schaffer, K K; Sevilla-Noarbe, I; Sheldon, E; Shirokoff, E; Smith, M; Soares-Santos, M; Staniszewski, Z; Stark, A A; Suchyta, E; Swanson, M E C; Tarle, G; Thomas, D; Troxel, M A; Tucker, D L; Vieira, J D; Vincenzi, M; Weaverdyck, N; Williamson, R; Yanny, B; Yin, B;
• Is Part Of: Monthly notices of the Royal Astronomical Society. Volume 522:Issue 2(2023)
• Page Start: 3163
• Page End: 3182
• Publication Date: 2023-04-20
• Subjects: galaxies: structure -- large-scale structure of Universe -- cosmology: observations; Astronomy -- Periodicals; Periodicals; 520.5
• DOI: 10.1093/mnras/stad1167
• Languages: English
• ISSNs: 0035-8711

Abstract

ABSTRACT: We cross-correlate positions of galaxies measured in data from the first three years of the Dark Energy Survey with Compton- y maps generated using data from the South Pole Telescope (SPT) and the Planck mission. We model this cross-correlation measurement together with the galaxy autocorrelation to constrain the distribution of gas in the Universe. We measure the hydrostatic mass bias or, equivalently, the mean halo bias-weighted electron pressure 〈 bh Pe 〉, using large-scale information. We find 〈 bh Pe 〉 to be $[0.16^{+0.03}_{-0.04}, 0.28^{+0.04}_{-0.05}, 0.45^{+0.06}_{-0.10}, 0.54^{+0.08}_{-0.07}, 0.61^{+0.08}_{-0.06}, 0.63^{+0.07}_{-0.08}]$ meV cm −3 at redshifts z ∼ [0.30, 0.46, 0.62, 0.77, 0.89, 0.97]. These values are consistent with previous work where measurements exist in the redshift range. We also constrain the mean gas profile using small-scale information, enabled by the high-resolution of the SPT data. We compare our measurements to different parametrized profiles based on the cosmo-OWLS hydrodynamical simulations. We find that our data are consistent with the simulation that assumes an AGN heating temperature of 10 8.5 K but are incompatible with the model that assumes an AGN heating temperature of 10 8.0 K. These comparisons indicate that the data prefer a higher value of electron pressure than the simulations within r 500 c of the galaxies' haloes.