Shocks in the stacked Sunyaev-Zel'dovich profiles of clusters II: Measurements from SPT-SZ plus Planck Compton-y map

被引：24

作者：

Anbajagane, D. ^{[1
,2
]}

Chang, C. ^{[1
,2
]}

Jain, B. ^{[3
]}

Adhikari, S. ^{[1
,2
]}

Baxter, E. J. ^{[4
]}

Benson, B. A. ^{[1
,2
,5
]}

Bleem, L. E. ^{[2
,6
]}

Bocquet, S. ^{[7
]}

Calzadilla, M. S. ^{[8
]}

Carlstrom, J. E. ^{[1
,2
,6
,9
,10
]}

Chang, C. L. ^{[2
,6
]}

Chown, R. ^{[11
]}

Crawford, T. M. ^{[1
,2
]}

Crites, A. T. ^{[1
,2
,12
]}

Cui, W. ^{[13
]}

de Haan, T. ^{[14
,15
]}

Di Mascolo, L. ^{[16
,17
,18
]}

Dobbs, M. A. ^{[19
,20
,21
]}

Everett, W. B. ^{[22
]}

George, E. M. ^{[15
,23
]}

Grandis, S. ^{[7
,24
]}

Halverson, N. W. ^{[22
,25
]}

Holder, G. P. ^{[26
,27
]}

Holzapfel, W. L. ^{[15
]}

Hrubes, J. D. ^{[28
]}

Lee, A. T. ^{[15
,29
]}

Luong-Van, D. ^{[28
]}

McDonald, M. A. ^{[8
]}

McMahon, J. J. ^{[1
,2
,9
,10
]}

Meyer, S. S. ^{[1
,2
,9
,10
]}

Millea, M. ^{[15
]}

Mocanu, L. M. ^{[1
,2
]}

Mohr, J. J. ^{[7
,24
,30
]}

Natoli, T. ^{[1
,2
]}

Omori, Y. ^{[1
,2
,31
,32
]}

Padin, S. ^{[1
,2
,33
]}

Pryke, C. ^{[34
]}

Reichardt, C. L. ^{[35
]}

Ruhl, J. E. ^{[36
]}

Saro, A. ^{[16
,17
,18
]}

Schaffer, K. K. ^{[2
,10
,37
]}

Shirokoff, E. ^{[1
,2
,15
]}

Staniszewski, Z. ^{[36
,38
]}

Stark, A. A. ^{[39
]}

Vieira, J. D. ^{[26
,27
]}

Williamson, R. ^{[1
,2
,38
]}

机构：

[1] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA

[2] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA

[3] Univ Penn, Ctr Particle Cosmol, Dept Phys & Astron, Philadelphia, PA 19104 USA

[4] Univ Hawaii, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 11196 USA

[5] Fermilab Natl Accelerator Lab, MS209,POB 500, Batavia, IL 60510 USA

[6] Argonne Natl Lab, High Energy Phys Div, Argonne, IL 60439 USA

[7] Ludwig Maximilians Univ Munchen, Fac Phys, Scheinerstr 1, D-81679 Munich, Germany

[8] MIT, Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 USA

[9] Univ Chicago, Dept Phys, Chicago, IL 60637 USA

[10] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[11] McMaster Univ, Dept Phys & Astron, 1280 Main St W, Hamilton, ON L8S 4L8, Canada

[12] Univ Toronto, Dept Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada

[13] Univ Edinburgh, Inst Astron, Royal Observ, Edinburgh EH9 3HJ, Midlothian, Scotland

[14] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan

[15] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[16] Univ Trieste, Dept Phys, Astron Unit, Via Tiepolo 11, I-34131 Trieste, Italy

[17] INAF Osservatorio Astron Trieste, Via Tiepolo 11, I-34131 Trieste, Italy

[18] IFPU Inst Fundamental Phys Universe, Via Beirut 2, I-34014 Trieste, Italy

[19] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[20] McGill Univ, McGill Space Inst, Montreal, PQ H3A 2T8, Canada

[21] Canadian Inst Adv Res, CIFAR Program Cosmol & Grav, Toronto, ON M5G 1Z8, Canada

[22] Univ Colorado, Ctr Astrophys & Space Astron, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA

[23] European Southern Observ, Karl Schwanschild Str 2, D-85748 Garching, Germany

[24] Excellence Cluster ORIGINS, Boltzmannstr 2, D-85748 Garching, Germany

[25] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[26] Univ Illinois, Astron Dept, 1002 W Green St, Urbana, IL 61801 USA

[27] Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA

[28] Univ Chicago, Chicago, IL 60637 USA

[29] Lawrence Berkeley Natl Lab, Phys Div, Berkeley, CA 94720 USA

[30] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany

[31] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, 452 Lomita Mall, Stanford, CA 94305 USA

[32] Stanford Univ, Dept Phys, 382 Via Pueblo Mall, Stanford, CA 94305 USA

[33] CALTECH, Dept Phys, Pasadena, CA 91125 USA

[34] Univ Minnesota, Dept Phys, Minneapolis, MN 55455 USA

[35] Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia

[36] Case Western Reserve Univ, Ctr Educ & Res Cosmol & Astrophys, Phys Dept, Cleveland, OH 01144 USA

[37] Sch Art Inst Chicago, Liberal Arts Dept, Chicago, IL 60603 USA

[38] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[39] Harvard & Smithsonian, Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2022年 / 514卷 / 02期

基金：

澳大利亚研究理事会; 欧洲研究理事会; 美国国家科学基金会;

关键词：

galaxies: clusters: intracluster medium; large-scale structure of Universe; LARGE-SCALE STRUCTURE; ATACAMA COSMOLOGY TELESCOPE; 3 HUNDRED PROJECT; GALAXY CLUSTERS; X-RAY; SPLASHBACK RADIUS; NONTHERMAL PRESSURE; CROSS-CORRELATION; FORMATION HISTORY; ANALYTICAL-MODEL;

D O I：

10.1093/mnras/stac1376

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We search for the signature of cosmological shocks in stacked gas pressure profiles of galaxy clusters using data from the South Pole Telescope (SPT). Specifically, we stack the latest Compton-y maps from the 2500 deg(2) SPT-SZ survey on the locations of clusters identified in that same data set. The sample contains 516 clusters with mean mass < M-200m > = 10(14.9) M-circle dot and redshift < z > = 0.55. We analyse in parallel a set of zoom-in hydrodynamical simulations from THE THREE HUNDRED project. The SPT-SZ data show two features: (i) a pressure deficit at R/R-200m = 1.08 +/- 0.09, measured at 3.1 sigma significance and not observed in the simulations, and; (ii) a sharp decrease in pressure at R/R-200m = 4.58 +/- 1.24 at 2.0 sigma significance. The pressure deficit is qualitatively consistent with a shock-induced thermal non-equilibrium between electrons and ions, and the second feature is consistent with accretion shocks seen in previous studies. We split the cluster sample by redshift and mass, and find both features exist in all cases. There are also no significant differences in features along and across the cluster major axis, whose orientation roughly points towards filamentary structure. As a consistency test, we also analyse clusters from the Planck and Atacama Cosmology 'telescope Polarimeter surveys and find quantitatively similar features in the pressure profiles. Finally, we compare the accretion shock radius (R-sh,R- acc) with existing measurements of the splashback radius (R-sp) for SPT-SZ and constrain the lower limit of the ratio, R-sh,R- acc/R-sp > 2.16 +/- 0.59.

引用

页码：1645 / 1663

页数：19

共 7 条

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