Cross-correlation of Dark Energy Survey Year 3 lensing data with ACT and Planck thermal Sunyaev-Zel'dovich effect observations. II. Modeling and constraints on halo pressure profiles

Pandey, S.; Gatti, M.; Baxter, E.; Hill, J. C.; Fang, X.; Doux, C.; Giannini, G.; Raveri, M.; DeRose, J.; Huang, H.; Moser, E.; Battaglia, N.; Alarcon, A.; Amon, A.; Becker, M.; Campos, A.; Chang, C.; Chen, R.; Choi, A.; Eckert, K.; Elvin-Poole, J.; Everett, S.; Ferte, A.; Harrison, I.; Maccrann, N.; Mccullough, J.; Myles, J.; Alsina, A. Navarro; Prat, J.; Rollins, R. P.; Sanchez, C.; Shin, T.; Troxel, M.; Tutusaus, I.; Yin, B.; Aguena, M.; Allam, S.; Andrade-Oliveira, F.; Bernstein, G. M.; Bertin, E.; Bolliet, B.; Bond, J. R.; Brooks, D.; Calabrese, E.; Rosell, A. Carnero; Kind, M. Carrasco; Carretero, J.; Cawthon, R.; Costanzi, M.; Crocce, M.; da Costa, L. N.; Pereira, M. E. S.; De Vicente, J.; Desai, S.; Diehl, H. T.; Dietrich, J.; Doel, P.; Dunkley, J.; Everett, S.; Evrard, A. E.; Ferraro, S.; Ferrero, I.; Flaugher, B.; Fosalba, P.; Garcia-Bellido, J.; Gaztanaga, E.; Gerdes, D. W.; Giannantonio, T.; Gruen, D.; Gruendl, R. A.; Gschwend, J.; Gutierrez, G.; Herner, K.; Hincks, A. D.; Hinton, S. R.; Hollowood, D. L.; Honscheid, K.; Hughes, J. P.; Huterer, D.; Jain, B.; James, D. J.; Jeltema, T.; Krause, E.; Kuehn, K.; Lahav, O.; Lima, M.; Lokken, M.; Madhavacheril, M.; Maia, M. A. G.; Mcmahon, J. J.; Melchior, P.; Menanteau, F.; Miquel, R.; Mohr, J. J.; Moodley, K.; Morgan, R.; Nati, F.; Niemack, M. D.; Page, L.; Palmese, A.; Paz-Chinchon, F.; Pieres, A.; Malagon, A. A. Plazas; Rodriguez-Monroy, M.; Romer, A. K.; Sanchez, E.; Scarpine, V.; Schaan, E.; Serrano, S.; Sevilla-Noarbe, I.; Sheldon, E.; Sherwin, B. D.; Sifon, C.; Smith, M.; Soares-Santos, M.; Spergel, D.; Suchyta, E.; Swanson, M. E. C.; Tarle, G.; Thomas, D.; To, C.; Varga, T. N.; Weller, Jochen ; Wollack, E. J. und Xu, Z. (2022): Cross-correlation of Dark Energy Survey Year 3 lensing data with ACT and Planck thermal Sunyaev-Zel'dovich effect observations. II. Modeling and constraints on halo pressure profiles. In: Physical Review D, Bd. 105, Nr. 12, 123526

Abstract

Hot, ionized gas leaves an imprint on the cosmic microwave background via the thermal Sunyaev-Zel'dovich (tSZ) effect. The cross-correlation of gravitational lensing (which traces the projected mass) with the tSZ effect (which traces the projected gas pressure) is a powerful probe of the thermal state of ionized baryons throughout the Universe and is sensitive to effects such as baryonic feedback. In a companion paper (Gatti et al. Phys. Rev. D 105, 123525 (2022)), we present tomographic measurements and validation tests of the cross-correlation between Galaxy shear measurements from the first three years of observations of the Dark Energy Survey and tSZ measurements from a combination of Atacama Cosmology Telescope and Planck observations. In this work, we use the same measurements to constrain models for the pressure profiles of halos across a wide range of halo mass and redshift. We find evidence for reduced pressure in low-mass halos, consistent with predictions for the effects of feedback from active Galactic nuclei. We infer the hydrostatic mass bias (B equivalent to M-500c/M-SZ) from our measurements, finding B = 1.8 +/- 0.1 when adopting the Planck-preferred cosmological parameters. We additionally find that our measurements are consistent with a nonzero redshift evolution of B, with the correct sign and sufficient magnitude to explain the mass bias necessary to reconcile cluster count measurements with the Planck-preferred cosmology. Our analysis introduces a model for the impact of intrinsic alignments (IAs) of galaxy shapes on the shear-tSZ correlation. We show that IA can have a significant impact on these correlations at current noise levels.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik > Astronomie und Astrophysik, Kosmologie
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 2470-0010
• Sprache: Englisch