학술논문
Mapping gas around massive galaxies: cross-correlation of DES Y3 galaxies and Compton-y maps from SPT and Planck
Document Type
article
Author
Sánchez, 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, A Carnero; Kind, M Carrasco; 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; García-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-Fernández, J; Menanteau, F; Miquel, R; Mocanu, L; Mohr, JJ; Muir, J; Myles, J; Natoli, T; Padin, S; Palmese, A; Pandey, S; Paz-Chinchón, F; Pieres, A; Malagón, AA Plazas; Porredon, A; Pryke, C; Raveri, M; Reichardt, CL
Source
Monthly Notices of the Royal Astronomical Society. 522(2)
Subject
Language
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+−000403, 0.28+−000504, 0.45+−001006, 0.54+−000708, 0.61+−000608, 0.63+−000807] 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.