Mapping gas around massive galaxies: cross-correlation of DES Y3 galaxies and Compton-y maps from SPT and Planck

• Published in: Monthly Notices of the Royal Astronomical Society
• Main Authors: Sanchez, J, Omori, Y, Chang, C, Bleem, LE, Crawford, T, Drlica-Wagner, A, Raghunathan, S, Zacharegkas, G, Abbott, TMC, Aguena, M, Alarcon, A, Allam, S, Alves, O, Amon, A, Avila, S, Baxter, E, Bechtol, K, Benson, BA, Bernstein, GM, Bertin, E, Bocquet, S, Brooks, D, Burke, DL, Campos, A, Carlstrom, JE, Rosell, AC, Kind, MC, Carretero, J, Castander, FJ, Cawthon, R, Chang, CL, Chen, A, Choi, A, Chown, R, Costanzi, M, Crites, AT, Crocce, M, da Costa, LN, Pereira, MES, de Haan, T, De Vicente, J, DeRose, J, Desai, S, Diehl, HT, Dobbs, MA, Dodelson, S, Doel, P, Elvin-Poole, J, Everett, W, Everett, S, Ferrero, I, Flaugher, B, Fosalba, P, Frieman, J, Garcia-Bellido, J, Gatti, M, George, EM, Gerdes, DW, Giannini, G, Gruen, D, Gruendl, RA, Gschwend, J, Gutierrez, G, Halverson, NW, Hinton, SR, Holder, GP, Hollowood, DL, Holzapfel, WL, Honscheid, K, Hrubes, JD, James, DJ, Knox, L, Kuehn, K, Kuropatkin, N, Lahav, O, Lee, AT, Luong-Van, D, MacCrann, N, Marshall, JL, McCullough, J, McMahon, JJ, Melchior, P, Mena-Fernandez, J, Menanteau, F, Miquel, R, Mocanu, L, Mohr, JJ, Muir, J, Myles, J, Natoli, T, Padin, S, Palmese, A, Pandey, S, Paz-Chinchon, F, Pieres, A, Malagon, AAP, Porredon, A, Pryke, C, Raveri, M, Reichardt, CL, Rodriguez-Monroy, M, Ross, AJ, Ruhl, JE, Rykoff, E, Sanchez, C, Sanchez, E, Scarpine, V, Schaffer, KK, Sevilla-Noarbe, I, Sheldon, E, Shirokoff, E, Smith, M, Soares-Santos, M, Staniszewski, Z, Stark, AA, Suchyta, E, Swanson, MEC, Tarle, G, Thomas, D, Troxel, MA, Tucker, DL, Vieira, JD, Vincenzi, M, Weaverdyck, N, Williamson, R, Yanny, B, Yin, B
• Format: Article in Journal/Newspaper
• Language: English
• Published: OXFORD UNIV PRESS 2023
• Subjects: South Pole; South pole
• Online Access: http://hdl.handle.net/11343/333209

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 〈bhPe 〉, using large-scale information. We find 〈bhPe 〉 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 108.5 K but are incompatible with the model that assumes an AGN heating temperature of 108.0 K. These comparisons indicate that the data prefer a higher value of electron pressure than the simulations within r500c of the galaxies’ haloes.