The Atacama Cosmology Telescope: Probing the baryon content of SDSS DR15 galaxies with the thermal and kinematic Sunyaev-Zel'dovich effects

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dc.contributor.authorVavagiakis, E. M.
dc.contributor.authorGallardo, P. A.
dc.contributor.authorCalafut, V
dc.contributor.authorAmodeo, S.
dc.contributor.authorAiola, S.
dc.contributor.authorAustermann, J. E.
dc.contributor.authorBattaglia, N.
dc.contributor.authorBattistelli, E. S.
dc.contributor.authorBeall, J. A.
dc.contributor.authorBean, R.
dc.contributor.authorBond, J. R.
dc.contributor.authorCalabrese, E.
dc.contributor.authorChoi, S. K.
dc.contributor.authorCothard, N. F.
dc.contributor.authorDevlin, M. J.
dc.contributor.authorDuell, C. J.
dc.contributor.authorDuff, S. M.
dc.contributor.authorDuivenvoorden, A. J.
dc.contributor.authorDunkley, J.
dc.contributor.authorDunner, R.
dc.contributor.authorFerraro, S.
dc.contributor.authorGuan, Y.
dc.contributor.authorHill, J. C.
dc.contributor.authorHilton, G. C.
dc.contributor.authorHilton, M.
dc.contributor.authorHlozek, R.
dc.contributor.authorHuber, Z. B.
dc.contributor.authorHubmayr, J.
dc.contributor.authorHuffenberger, K. M.
dc.contributor.authorHughes, J. P.
dc.contributor.authorKoopman, B. J.
dc.contributor.authorKosowsky, A.
dc.contributor.authorLi, Y.
dc.contributor.authorLokken, M.
dc.contributor.authorMadhavacheril, M.
dc.contributor.authorMcMahon, J.
dc.contributor.authorMoodley, K.
dc.contributor.authorNaess, S.
dc.contributor.authorNati, F.
dc.contributor.authorNewburgh, L. B.
dc.contributor.authorNiemack, M. D.
dc.contributor.authorPage, L. A.
dc.contributor.authorPartridge, B.
dc.contributor.authorSchaan, E.
dc.contributor.authorSchillaci, A.
dc.contributor.authorSifon, C.
dc.contributor.authorSpergel, D. N.
dc.contributor.authorStaggs, S. T.
dc.contributor.authorUllom, J. N.
dc.contributor.authorVale, L. R.
dc.contributor.authorVan Engelen, A.
dc.contributor.authorVan Lanen, J.
dc.contributor.authorWollack, E. J.
dc.contributor.authorXu, Z.
dc.date.accessioned2025-01-20T22:10:22Z
dc.date.available2025-01-20T22:10:22Z
dc.date.issued2021
dc.description.abstractWe present measurements of the average thermal Sunyaev Zel'dovich (tSZ) effect from optically selected galaxy groups and clusters at high signal-to-noise (up to 12 sigma) and estimate their baryon content within a 2.10 radius aperture. Sources from the Sloan Digital Sky Survey Baryon Oscillation Spectroscopic Survey DR15 catalog overlap with 3,700 sq deg of sky observed by the Atacama Cosmology Telescope (ACT) from 2008 to 2018 at 150 and 98 GHz (ACT DR5), and 2,089 sq deg of internal linear combination component-separated maps combining ACT and Planck data (ACT DR4). The corresponding optical depths tau, which depend on the baryon content of the halos, are estimated using results from cosmological hydrodynamic simulations assuming an active galactic nuclei feedback radiative cooling model. We estimate the mean mass of the halos in multiple luminosity bins, and compare the tSZ-based tau estimates to theoretical predictions of the baryon content for a Navarro-Frenk-White profile. We do the same for tau estimates extracted from fits to pairwise baryon momentum measurements of the kinematic Sunyaev-Zel'dovich effect (kSZ) for the same dataset obtained in a companion paper. We find that the tau estimates from the tSZ measurements in this work and the kSZ measurements in the companion paper agree within 1 sigma for two out of the three disjoint luminosity bins studied, while they differ by 2-3 sigma in the highest luminosity bin. The optical depth estimates account for one-third to all of the theoretically predicted baryon content in the halos across luminosity bins. Potential systematic uncertainties are discussed. The tSZ and kSZ measurements provide a step toward empirical Compton-y-tau relationships to provide new tests of cluster formation and evolution models.
dc.fuente.origenWOS
dc.identifier.doi10.1103/PhysRevD.104.043503
dc.identifier.eissn2470-0029
dc.identifier.issn2470-0010
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.104.043503
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/94369
dc.identifier.wosidWOS:000686912300002
dc.issue.numero4
dc.language.isoen
dc.revistaPhysical review d
dc.rightsacceso restringido
dc.titleThe Atacama Cosmology Telescope: Probing the baryon content of SDSS DR15 galaxies with the thermal and kinematic Sunyaev-Zel'dovich effects
dc.typeartículo
dc.volumen104
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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