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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, JC;
- 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, RP;
- Sanchez, C;
- Shin, T;
- Troxel, M;
- Tutusaus, I;
- Yin, B;
- Aguena, M;
- Allam, S;
- Andrade-Oliveira, F;
- Bernstein, GM;
- Bertin, E;
- Bolliet, B;
- Bond, JR;
- Brooks, D;
- Calabrese, E;
- Rosell, A Carnero;
- Kind, M Carrasco;
- Carretero, J;
- Cawthon, R;
- Costanzi, M;
- Crocce, M;
- da Costa, LN;
- Pereira, MES;
- De Vicente, J;
- Desai, S;
- Diehl, HT;
- Dietrich, JP;
- Doel, P;
- Dunkley, J;
- Everett, S;
- Evrard, AE;
- Ferraro, S;
- Ferrero, I;
- Flaugher, B;
- Fosalba, P;
- García-Bellido, J;
- Gaztanaga, E;
- Gerdes, DW;
- Giannantonio, T;
- Gruen, D;
- Gruendl, RA;
- Gschwend, J;
- Gutierrez, G;
- Herner, K;
- Hincks, AD;
- Hinton, SR;
- Hollowood, DL;
- Honscheid, K;
- Hughes, JP;
- Huterer, D;
- Jain, B;
- James, DJ;
- Jeltema, T;
- Krause, E;
- Kuehn, K;
- Lahav, O;
- Lima, M;
- Lokken, M;
- Madhavacheril, MS;
- Maia, MAG;
- Mcmahon, JJ;
- Melchior, P;
- Menanteau, F;
- Miquel, R;
- Mohr, JJ;
- Moodley, K;
- Morgan, R;
- Nati, F;
- Niemack, MD;
- Page, L;
- Palmese, A;
- Paz-Chinchón, F;
- Pieres, A;
- Malagón, AA Plazas;
- Rodriguez-Monroy, M;
- Romer, AK;
- Sanchez, E;
- Scarpine, V;
- Schaan, E;
- Serrano, S;
- Sevilla-Noarbe, I;
- Sheldon, E;
- Sherwin, BD;
- Sifón, C;
- Smith, M;
- Soares-Santos, M;
- Spergel, D;
- Suchyta, E;
- Swanson, MEC;
- Tarle, G;
- Thomas, D;
- To, C;
- Varga, TN;
- Weller, J;
- Wollack, EJ;
- Xu, Z
- et al.
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)PRVDAQ2470-0010), 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 (BM500c/MSZ) 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.
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