THE ATACAMA COSMOLOGY TELESCOPE: COSMOLOGY FROM GALAXY CLUSTERS DETECTED VIA THE SUNYAEV-ZEL'DOVICH EFFECT

被引：142

作者：

Sehgal, Neelima ^{[1
]}

Trac, Hy ^{[2
,3
]}

Acquaviva, Viviana ^{[4
,5
]}

Ade, Peter A. R. ^{[6
]}

Aguirre, Paula ^{[7
]}

Amiri, Mandana ^{[8
]}

Appel, John W. ^{[9
]}

Felipe Barrientos, L. ^{[7
]}

Battistelli, Elia S. ^{[8
,10
]}

Bond, J. Richard ^{[11
]}

Brown, Ben ^{[12
]}

Burger, Bryce ^{[8
]}

Chervenak, Jay ^{[13
]}

Das, Sudeep ^{[4
,9
,14
,15
]}

Devlin, Mark J. ^{[16
]}

Dicker, Simon R. ^{[16
]}

Doriese, W. Bertrand ^{[17
]}

Dunkley, Joanna ^{[4
,9
,18
]}

Duenner, Rolando ^{[7
]}

Essinger-Hileman, Thomas ^{[9
]}

Fisher, Ryan P. ^{[9
]}

Fowler, Joseph W. ^{[9
,17
]}

Hajian, Amir ^{[4
,9
,11
]}

Halpern, Mark ^{[8
]}

Hasselfield, Matthew ^{[8
]}

Hernandez-Monteagudo, Carlos ^{[19
]}

Hilton, Gene C. ^{[17
]}

Hilton, Matt ^{[20
,21
]}

Hincks, Adam D. ^{[9
]}

Hlozek, Renee ^{[18
]}

Holtz, David ^{[9
]}

Huffenberger, Kevin M. ^{[22
]}

Hughes, David H. ^{[23
]}

Hughes, John P.

Infante, Leopoldo ^{[7
]}

Irwin, Kent D. ^{[17
]}

Jones, Andrew ^{[9
]}

Baptiste Juin, Jean ^{[7
]}

Klein, Jeff ^{[16
]}

Kosowsky, Arthur ^{[12
]}

Lau, Judy M. ^{[1
,9
,24
]}

Limon, Michele ^{[9
,16
,25
]}

Lin, Yen-Ting ^{[4
,7
,26
]}

Lupton, Robert H. ^{[4
]}

Marriage, Tobias A. ^{[4
,16
,27
]}

Marsden, Danica

Martocci, Krista ^{[9
,28
]}

Mauskopf, Phil ^{[6
]}

Menanteau, Felipe ^{[5
]}

Moodley, Kavilan ^{[20
,21
]}

机构：

[1] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA

[2] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA

[3] Harvard Univ, Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[4] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[5] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

[6] Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales

[7] Pontificia Univ Catolica Chile, Fac Fis, Dept Astron & Astrofis, Santiago 22, Chile

[8] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z4, Canada

[9] Princeton Univ, Joseph Henry Labs Phys, Princeton, NJ 08544 USA

[10] Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy

[11] Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada

[12] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA

[13] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[14] Univ Calif Berkeley, Berkeley Ctr Cosmol Phys, LBL, Berkeley, CA 94720 USA

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

[16] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

[17] NIST, Quantum Devices Grp, Boulder, CO 80305 USA

[18] Univ Oxford, Dept Astrophys, Oxford OX1 3RH, England

[19] Max Planck Inst Astrophys, D-85741 Garching, Germany

[20] Univ KwaZulu Natal, Astrophys & Cosmol Res Unit, Sch Math Sci, ZA-4041 Durban, South Africa

[21] Ctr High Performance Comp, Cape Town, South Africa

[22] Univ Miami, Dept Phys, Coral Gables, FL 33124 USA

[23] INAOE, Puebla, Mexico

[24] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[25] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA

[26] Univ Tokyo, Inst Phys & Math Universe, Chiba 2778568, Japan

[27] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[28] Kavli Inst Cosmol Phys, Lab Astrophys & Space Res, Chicago, IL 60637 USA

[29] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

[30] Haverford Coll, Dept Phys & Astron, Haverford, PA 19041 USA

[31] Univ Barcelona, ICC, E-08028 Barcelona, Spain

[32] W Chester Univ Penn, Dept Phys, W Chester, PA 19383 USA

来源：

ASTROPHYSICAL JOURNAL | 2011年 / 732卷 / 01期

基金：

加拿大自然科学与工程研究理事会; 加拿大创新基金会; 新加坡国家研究基金会; 美国国家科学基金会;

关键词：

cosmic background radiation; cosmology: observations; galaxies: clusters: general; BACKGROUND POWER SPECTRUM; TREE PARTICLE-MESH; SKY SURVEY; RADIO-SOURCES; HYDRODYNAMICAL SIMULATIONS; SCALING RELATIONS; RAY; GAS; PROBE; MASS;

D O I：

10.1088/0004-637X/732/1/44

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present constraints on cosmological parameters based on a sample of Sunyaev-Zel'dovich-selected (SZ-selected) galaxy clusters detected in a millimeter-wave survey by the Atacama Cosmology Telescope. The cluster sample used in this analysis consists of nine optically confirmed high-mass clusters comprising the high-significance end of the total cluster sample identified in 455 deg(2) of sky surveyed during 2008 at 148 GHz. We focus on the most massive systems to reduce the degeneracy between unknown cluster astrophysics and cosmology derived from SZ surveys. We describe the scaling relation between cluster mass and SZ signal with a four-parameter fit. Marginalizing over the values of the parameters in this fit with conservative priors gives sigma(8) = 0.851 +/- 0.115 and omega = -1.14 +/- 0.35 for a spatially flat wCDM cosmological model with Wilkinson Microwave Anisotropy Probe (WMAP) seven-year priors on cosmological parameters. This gives a modest improvement in statistical uncertainty over WMAP seven-year constraints alone. Fixing the scaling relation between the cluster mass and SZ signal to a fiducial relation obtained from numerical simulations and calibrated by X-ray observations, we find sigma(8) = 0.821 +/- 0.044 and omega = -1.05 +/- 0.20. These results are consistent with constraints from WMAP7 plus baryon acoustic oscillations plus Type Ia supernova which give sigma(8) = 0.802 +/- 0.038 and omega = -0.98 +/- 0.053. A stacking analysis of the clusters in this sample compared to clusters simulated assuming the fiducial model also shows good agreement. These results suggest that, given the sample of clusters used here, both the astrophysics of massive clusters and the cosmological parameters derived from them are broadly consistent with current models.

引用

页数：12

共 87 条

[1] The universal galaxy cluster pressure profile from a representative sample of nearby systems (REXCESS) and the YSZ-M500 relation [J].

Arnaud, M. ;

Pratt, G. W. ;

Piffaretti, R. ;

Boehringer, H. ;

Croston, J. H. ;

Pointecouteau, E. .

ASTRONOMY & ASTROPHYSICS, 2010, 517

[2] The most massive distant clusters:: Determining Ω and σ8 [J].

Bahcall, NA ;

Fan, XH .

ASTROPHYSICAL JOURNAL, 1998, 504 (01) :1-6

[3] THE FIRST MID-INFRARED VIEW OF THE STAR-FORMING PROPERTIES OF NEARBY GALAXY GROUPS [J].

Bai, Lei ;

Rasmussen, Jesper ;

Mulchaey, John S. ;

Dariush, Ali ;

Raychaudhury, Somak ;

Ponman, Trevor J. .

ASTROPHYSICAL JOURNAL, 2010, 713 (01) :637-650

[4] SIMULATIONS OF THE SUNYAEV-ZEL'DOVICH POWER SPECTRUM WITH ACTIVE GALACTIC NUCLEUS FEEDBACK [J].

Battaglia, N. ;

Bond, J. R. ;

Pfrommer, C. ;

Sievers, J. L. ;

Sijacki, D. .

ASTROPHYSICAL JOURNAL, 2010, 725 (01) :91-99

[5] Bayesian photometric redshift estimation [J].

Benítez, N .

ASTROPHYSICAL JOURNAL, 2000, 536 (02) :571-583

[6] SExtractor: Software for source extraction [J].

Bertin, E ;

Arnouts, S .

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1996, 117 (02) :393-404

[7] Distinguishing modified gravity from dark energy [J].

Bertschinger, Edmund ;

Zukin, Phillip .

PHYSICAL REVIEW D, 2008, 78 (02)

[8] Tree particle-mesh: An adaptive, efficient, and parallel code for collisionless cosmological simulation [J].

Bode, P ;

Ostriker, JP .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2003, 145 (01) :1-13

[9] The tree particle-mesh N-body gravity solver [J].

Bode, P ;

Ostriker, JP ;

Xu, GH .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2000, 128 (02) :561-569

[10] EXPLORING THE ENERGETICS OF INTRACLUSTER GAS WITH A SIMPLE AND ACCURATE MODEL [J].

Bode, Paul ;

Ostriker, Jeremiah P. ;

Vikhlinin, Alexey .

ASTROPHYSICAL JOURNAL, 2009, 700 (02) :989-999

← 1 2 3 4 5 6 7 8 9 →