SPT-CL J0546-5345: A MASSIVE z > 1 GALAXY CLUSTER SELECTED VIA THE SUNYAEV-ZEL'DOVICH EFFECT WITH THE SOUTH POLE TELESCOPE

被引：98

作者：

Brodwin, M. ^{[1
]}

Ruel, J. ^{[2
]}

Ade, P. A. R. ^{[3
]}

Aird, K. A. ^{[4
]}

Andersson, K. ^{[5
]}

Ashby, M. L. N. ^{[1
]}

Bautz, M. ^{[5
]}

Bazin, G. ^{[6
,7
]}

Benson, B. A. ^{[8
,9
]}

Bleem, L. E. ^{[8
,10
]}

Carlstrom, J. E. ^{[8
,9
,10
,11
]}

Chang, C. L. ^{[8
,9
]}

Crawford, T. M. ^{[8
,11
]}

Crites, A. T. ^{[8
,11
]}

De Haan, T. ^{[12
]}

Desai, S. ^{[13
]}

Dobbs, M. A. ^{[12
]}

Dudley, J. P. ^{[12
]}

Fazio, G. G. ^{[1
]}

Foley, R. J. ^{[1
]}

Forman, W. R. ^{[1
]}

Garmire, G. ^{[14
]}

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

Gladders, M. D. ^{[8
,11
]}

Gonzalez, A. H. ^{[16
]}

Halverson, N. W. ^{[17
,18
]}

High, F. W. ^{[2
]}

Holder, G. P. ^{[12
]}

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

Hrubes, J. D. ^{[4
]}

Jones, C. ^{[1
]}

Joy, M. ^{[19
]}

Keisler, R. ^{[8
,10
]}

Knox, L. ^{[20
]}

Lee, A. T. ^{[15
,21
]}

Leitch, E. M. ^{[8
,11
]}

Lueker, M. ^{[15
]}

Marrone, D. P. ^{[4
,8
]}

McMahon, J. J. ^{[8
,9
,22
]}

Mehl, J. ^{[8
,11
]}

Meyer, S. S. ^{[8
,9
,10
,11
]}

Mohr, J. J. ^{[6
,7
,23
]}

Montroy, T. E. ^{[24
,25
]}

Murray, S. S. ^{[1
]}

Padin, S. ^{[8
,11
]}

Plagge, T. ^{[11
,15
]}

Pryke, C. ^{[8
,9
,11
]}

Reichardt, C. L. ^{[15
]}

Rest, A. ^{[2
]}

Ruhl, J. E. ^{[24
,25
]}

机构：

[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[2] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[3] Cardiff Univ, Dept Phys & Astron, Cardiff CF24 3YB, S Glam, Wales

[4] Univ Chicago, Chicago, IL 60637 USA

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

[6] Univ Munich, Dept Phys, D-81679 Munich, Germany

[7] Excellence Cluster Univ, D-85758 Garching, Germany

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

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

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

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

[12] McGill Univ, Dept Phys, Quebec City, PQ H3A 2T8, Canada

[13] Univ Illinois, Dept Astron, Urbana, IL 61801 USA

[14] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

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

[16] Univ Florida, Dept Astron, Gainesville, FL 32611 USA

[17] Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA

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

[19] NASA Marshall Space Flight Ctr, Dept Space Sci, Huntsville, AL 35812 USA

[20] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[21] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Phys, Berkeley, CA 94720 USA

[22] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

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

[24] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA

[25] Case Western Reserve Univ, CERCA, Cleveland, OH 44106 USA

[26] Yale Univ, Dept Phys, New Haven, CT 06520 USA

来源：

ASTROPHYSICAL JOURNAL | 2010年 / 721卷 / 01期

基金：

美国国家科学基金会;

关键词：

galaxies: clusters: individual (SPT-CL J0546-5345); galaxies: distances and redshifts; galaxies: evolution; X-RAY; VELOCITY DISPERSIONS; COSMOLOGY; TEMPERATURE; CHANDRA; PHOTOMETRY; REDSHIFTS; GAS;

D O I：

10.1088/0004-637X/721/1/90

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the spectroscopic confirmation of SPT-CL J0546-5345 at < z > = 1.067. To date this is the most distant cluster to be spectroscopically confirmed from the 2008 South Pole Telescope (SPT) catalog, and indeed the first z > 1 cluster discovered by the Sunyaev-Zel'dovich Effect (SZE). We identify 21 secure spectroscopic members within 0.9 Mpc of the SPT cluster position, 18 of which are quiescent, early-type galaxies. From these quiescent galaxies we obtain a velocity dispersion of 1179-(+232)(167) km s(-1), ranking SPT-CL J0546-5345 as the most dynamically massive cluster yet discovered at z > 1. Assuming that SPT-CL J0546-5345 is virialized, this implies a dynamical mass of M-200 = 1.0(-0.4)(+0.6) x 10(15) M-circle dot, in agreement with the X-ray and SZE mass measurements. Combining masses from several independent measures leads to a best-estimate mass of M-200 = (7.95 +/- 0.92) x 10(14) M-circle dot. The spectroscopic confirmation of SPT-CL J0546-5345, discovered in the wide-angle, mass-selected SPT cluster survey, marks the onset of the high-redshift SZE-selected galaxy cluster era.

引用

页码：90 / 97

页数：8

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SPT-CL J0546-5345: A MASSIVE z &gt; 1 GALAXY CLUSTER SELECTED VIA THE SUNYAEV-ZEL'DOVICH EFFECT WITH THE SOUTH POLE TELESCOPE

SPT-CL J0546-5345: A MASSIVE z > 1 GALAXY CLUSTER SELECTED VIA THE SUNYAEV-ZEL'DOVICH EFFECT WITH THE SOUTH POLE TELESCOPE