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Atacama Cosmology Telescope: Modeling the gas thermodynamics in BOSS CMASS galaxies from kinematic and thermal Sunyaev-Zel’dovich measurements

Amodeo, Stefania and Battaglia, Nicholas and Schaan, Emmanuel and Ferraro, Simone and Moser, Emily and Aiola, Simone and Austermann, Jason E. and Beall, James A. and Bean, Rachel and Becker, Daniel T. and Bond, Richard J. and Calabrese, Erminia and Calafut, Victoria and Choi, Steve K. and Denison, Edward V. and Devlin, Mark and Duff, Shannon M. and Duivenvoorden, Adriaan J. and Dunkley, Jo and Dünner, Rolando and Gallardo, Patricio A. and Hall, Kirsten R. and Han, Dongwon and Hill, J. Colin and Hilton, Gene C. and Hilton, Matt and Hložek, Renée and Hubmayr, Johannes and Huffenberger, Kevin M. and Hughes, John P. and Koopman, Brian J. and MacInnis, Amanda and McMahon, Jeff and Madhavacheril, Mathew S. and Moodley, Kavilan and Mroczkowski, Tony and Naess, Sigurd and Nati, Federico and Newburgh, Laura B. and Niemack, Michael D. and Page, Lyman A. and Partridge, Bruce and Schillaci, Alessandro and Sehgal, Neelima and Sifón, Cristóbal and Spergel, David N. and Staggs, Suzanne and Storer, Emilie R. and Ullom, Joel N. and Vale, Leila R. and van Engelen, Alexander and Van Lanen, Jeff and Vavagiakis, Eve M. and Wollack, Edward J. and Xu, Zhilei (2021) Atacama Cosmology Telescope: Modeling the gas thermodynamics in BOSS CMASS galaxies from kinematic and thermal Sunyaev-Zel’dovich measurements. Physical Review D, 103 (6). Art. No. 063514. ISSN 2470-0010. doi:10.1103/physrevd.103.063514.

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The thermal and kinematic Sunyaev-Zel’dovich effects (tSZ, kSZ) probe the thermodynamic properties of the circumgalactic and intracluster medium (CGM and ICM) of galaxies, groups, and clusters, since they are proportional, respectively, to the integrated electron pressure and momentum along the line of sight. We present constraints on the gas thermodynamics of CMASS (constant stellar mass) galaxies in the Baryon Oscillation Spectroscopic Survey using new measurements of the kSZ and tSZ signals obtained in a companion paper [Schaan et al.]. Combining kSZ and tSZ measurements, we measure within our model the amplitude of energy injection εM⋆c², where M⋆ is the stellar mass, to be ε = (40±9)×10⁻⁶, and the amplitude of the nonthermal pressure profile to be α_(Nth) < 0.2(2σ), indicating that less than 20% of the total pressure within the virial radius is due to a nonthermal component. We estimate the effects of including baryons in the modeling of weak-lensing galaxy cross-correlation measurements using the best-fit density profile from the kSZ measurement. Our estimate reduces the difference between the original theoretical model and the weak-lensing galaxy cross-correlation measurements in [A. Leauthaud et al., Mon. Not. R. Astron. Soc. 467, 3024 (2017)] by half (50% at most), but does not fully reconcile it. Comparing the kSZ and tSZ measurements to cosmological simulations, we find that they underpredict the CGM pressure and to a lesser extent the CGM density at larger radii with probabilities to exceed ranging from 0.00 to 0.03 and 0.12 to 0.14, for tSZ and kSZ, respectively. This suggests that the energy injected via feedback models in the simulations that we compared against does not sufficiently heat the gas at these radii. We do not find significant disagreement at smaller radii. These measurements provide novel tests of current and future simulations. This work demonstrates the power of joint, high signal-to-noise kSZ and tSZ observations, upon which future cross-correlation studies will improve.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Amodeo, Stefania0000-0002-4200-9965
Battaglia, Nicholas0000-0001-5846-0411
Schaan, Emmanuel0000-0002-4619-8927
Ferraro, Simone0000-0003-4992-7854
Aiola, Simone0000-0002-1035-1854
Austermann, Jason E.0000-0002-6338-0069
Choi, Steve K.0000-0002-9113-7058
Devlin, Mark0000-0002-3169-9761
Duff, Shannon M.0000-0002-9693-4478
Gallardo, Patricio A.0000-0001-9731-3617
Hall, Kirsten R.0000-0002-4176-845X
Hill, J. Colin0000-0002-9539-0835
Hilton, Gene C.0000-0003-4247-467X
Hilton, Matt0000-0002-8490-8117
Hubmayr, Johannes0000-0002-2781-9302
Huffenberger, Kevin M.0000-0001-7109-0099
Hughes, John P.0000-0002-8816-6800
Koopman, Brian J.0000-0003-0744-2808
Madhavacheril, Mathew S.0000-0001-6740-5350
Moodley, Kavilan0000-0001-6606-7142
Mroczkowski, Tony0000-0003-3816-5372
Naess, Sigurd0000-0002-4478-7111
Nati, Federico0000-0002-8307-5088
Niemack, Michael D.0000-0001-7125-3580
Page, Lyman A.0000-0002-9828-3525
Partridge, Bruce0000-0001-6541-9265
Schillaci, Alessandro0000-0002-0512-1042
Sehgal, Neelima0000-0002-9674-4527
Sifón, Cristóbal0000-0002-8149-1352
Spergel, David N.0000-0002-5151-0006
Staggs, Suzanne0000-0002-7020-7301
Ullom, Joel N.0000-0003-2486-4025
Vale, Leila R.0000-0001-8561-2580
Vavagiakis, Eve M.0000-0002-2105-7589
Wollack, Edward J.0000-0002-7567-4451
Xu, Zhilei0000-0001-5112-2567
Alternate Title:The Atacama Cosmology Telescope: Modelling the Gas Thermodynamics in BOSS CMASS galaxies from Kinematic and Thermal Sunyaev-Zel'dovich Measurements
Additional Information:© 2021 American Physical Society. Received 13 September 2020; accepted 2 February 2021; published 15 March 2021. The authors thank the anonymous referee for their helpful and constructive comments which improved the paper. This work was supported by the U.S. National Science Foundation through Grants No. AST-1440226, No. AST0965625, and No. AST-0408698 for the ACT project, as well as Grants No. PHY-1214379 and No. PHY-0855887. Funding was also provided by Princeton University, the University of Pennsylvania, and a Canada Foundation for Innovation (CFI) award to UBC. ACT operates in the Parque Astronómico Atacama in northern Chile under the auspices of the Comisión Nacional de Investigación Científica y Tecnológica de Chile (CONICYT). The Flatiron Institute is funded by the Simons Foundation. N. B. acknowledges support from NSF Grant No. AST-1910021. N. B. and J. C. H. acknowledge support from the Research and Technology Development fund at the Jet Propulsion Laboratory through the project entitled “Mapping the Baryonic Majority”. E. S. is supported by the Chamberlain fellowship at Lawrence Berkeley National Laboratory. S. F. is supported by the Physics Division of Lawrence Berkeley National Laboratory. E. C. acknowledges support from the STFC Ernest Rutherford Fellowship ST/M004856/2 and STFC Consolidated Grant No. ST/S00033X/1, and from the Horizon 2020 ERC Starting Grant (Grant agreement No. 849169). R. D. thanks CONICYT for Grant No. BASAL CATA AFB-170002. D. H., A. M., and N. S. acknowledge support from NSF Grants No. AST-1513618 and No. AST-1907657. M. H. acknowledges support from the National Research Foundation of South Africa. J. P. H. acknowledges funding for SZ cluster studies from NSF AAG No. AST-1615657. K. M. acknowledges support from the National Research Foundation of South Africa. C. S. acknowledges support from the Agencia Nacional de Investigación y Desarrollo (ANID) through FONDECYT Iniciación Grant No. 11191125.
Funding AgencyGrant Number
Princeton UniversityUNSPECIFIED
University of PennsylvaniaUNSPECIFIED
Canada Foundation for InnovationUNSPECIFIED
Comisión Nacional de Investigación Científica y Tecnológica (CONICYT)UNSPECIFIED
Simons FoundationUNSPECIFIED
JPL Research and Technology Development FundUNSPECIFIED
Lawrence Berkeley National LaboratoryUNSPECIFIED
Science and Technology Facilities Council (STFC)ST/M004856/2
Science and Technology Facilities Council (STFC)ST/S00033X/1
European Research Council (ERC)849169
National Research Foundation (South Africa)UNSPECIFIED
Agencia Nacional de Investigación y Desarrollo (ANID)UNSPECIFIED
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)11191125
Issue or Number:6
Record Number:CaltechAUTHORS:20210422-083854415
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:108800
Deposited By: Tony Diaz
Deposited On:22 Apr 2021 17:30
Last Modified:22 Apr 2021 17:30

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