학술논문
Mapping gas around massive galaxies: cross-correlation of DES Y3 galaxies and Compton-$y$-maps from SPT and Planck
Document Type
Working Paper
Author
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.
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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 {\it Planck} mission. We model this cross-correlation measurement together with the galaxy auto-correlation to constrain the distribution of gas in the Universe. We measure the hydrostatic mass bias or, equivalently, the mean halo bias-weighted electron pressure $\langle b_{h}P_{e}\rangle$, using large-scale information. We find $\langle b_{h}P_{e}\rangle$ 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 $z \sim [0.30, 0.46, 0.62,0.77, 0.89, 0.97]$. 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 $r_{500c}$ of the galaxies' halos.
Comment: 20 pages, 9 figures. Submitted to MNRAS
Comment: 20 pages, 9 figures. Submitted to MNRAS