SPT-CL J0546-5345: A massive z > 1 galaxy cluster selected via the Sunyaev-Zel'dovich Effect with the South Pole Telescope

M. Brodwin; J. Ruel; P. A R Ade; K. A. Aird; K. Andersson; M. L N Ashby; M. Bautz; G. Bazin; B. A. Benson; L. E. Bleem; J. E. Carlstrom; C. L. Chang; T. M. Crawford; A. T. Crites; T. De Haan; S. Desai; M. A. Dobbs; J. P. Dudley; G. G. Fazio; R. J. Foley; W. R. Forman; G. Garmire; E. M. George; M. D. Gladders; A. H. Gonzalez; N. W. Halverson; F. W. High; G. P. Holder; W. L. Holzapfel; J. D. Hrubes; C. Jones; M. Joy; R. Keisler; L. Knox; A. T. Lee; E. M. Leitch; M. Lueker; D. P. Marrone; J. J. McMahon; J. Mehl; S. S. Meyer; J. J. Mohr; T. E. Montroy; S. S. Murray; S. Padin; T. Plagge; C. Pryke; C. L. Reichardt; A. Rest; J. E. Ruhl; K. K. Schaffer; L. Shaw; E. Shirokoff; J. Song; H. G. Spieler; B. Stalder; S. A. Stanford; Z. Staniszewski; A. A. Stark; C. W. Stubbs; K. Vanderlinde; J. D. Vieira; A. Vikhlinin; R. Williamson; Y. Yang; O. Zahn; A. Zenteno

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

SPT-CL J0546-5345: A massive z > 1 galaxy cluster selected via the Sunyaev-Zel'dovich Effect with the South Pole Telescope

M. Brodwin, J. Ruel, P. A R Ade, K. A. Aird, K. Andersson, M. L N Ashby, M. Bautz, G. Bazin, B. A. Benson, L. E. Bleem, J. E. Carlstrom, C. L. Chang, T. M. Crawford, A. T. Crites, T. De Haan, S. Desai, M. A. Dobbs, J. P. Dudley, G. G. Fazio, R. J. FoleyW. R. Forman, G. Garmire, E. M. George, M. D. Gladders, A. H. Gonzalez, N. W. Halverson, F. W. High, G. P. Holder, W. L. Holzapfel, J. D. Hrubes, C. Jones, M. Joy, R. Keisler, L. Knox, A. T. Lee, E. M. Leitch, M. Lueker, D. P. Marrone, J. J. McMahon, J. Mehl, S. S. Meyer, J. J. Mohr, T. E. Montroy, S. S. Murray, S. Padin, T. Plagge, C. Pryke, C. L. Reichardt, A. Rest, J. E. Ruhl, K. K. Schaffer, L. Shaw, E. Shirokoff, J. Song, H. G. Spieler, B. Stalder, S. A. Stanford, Z. Staniszewski, A. A. Stark, C. W. Stubbs, K. Vanderlinde, J. D. Vieira, A. Vikhlinin, R. Williamson, Y. Yang, O. Zahn, A. Zenteno

Physics and Astronomy (Twin Cities)

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Abstract

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_-167⁺²³² 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 M₂₀₀ = 1.0_-0.4 ^+0.6×10¹⁵M_⊙, in agreement with the X-ray and SZE mass measurements. Combining masses from several independent measures leads to a best-estimate mass of M₂₀₀ = (7.95 ± 0.92) × 10¹⁴M_⊙. 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.

Original language	English (US)
Pages (from-to)	90-97
Number of pages	8
Journal	Astrophysical Journal
Volume	721
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/721/1/90
State	Published - Sep 20 2010

Keywords

Galaxies: Evolution
Galaxies: clusters: individual (SPT-CL J0546-5345)
Galaxies: distances and redshifts

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Brodwin, M., Ruel, J., Ade, P. A. R., Aird, K. A., Andersson, K., Ashby, M. L. N., Bautz, M., Bazin, G., Benson, B. A., Bleem, L. E., Carlstrom, J. E., Chang, C. L., Crawford, T. M., Crites, A. T., De Haan, T., Desai, S., Dobbs, M. A., Dudley, J. P., Fazio, G. G., ... Zenteno, A. (2010). SPT-CL J0546-5345: A massive z > 1 galaxy cluster selected via the Sunyaev-Zel'dovich Effect with the South Pole Telescope. Astrophysical Journal, 721(1), 90-97. https://doi.org/10.1088/0004-637X/721/1/90

Brodwin, M, Ruel, J, Ade, PAR, Aird, KA, Andersson, K, Ashby, MLN, Bautz, M, Bazin, G, Benson, BA, Bleem, LE, Carlstrom, JE, Chang, CL, Crawford, TM, Crites, AT, De Haan, T, Desai, S, Dobbs, MA, Dudley, JP, Fazio, GG, Foley, RJ, Forman, WR, Garmire, G, George, EM, Gladders, MD, Gonzalez, AH, Halverson, NW, High, FW, Holder, GP, Holzapfel, WL, Hrubes, JD, Jones, C, Joy, M, Keisler, R, Knox, L, Lee, AT, Leitch, EM, Lueker, M, Marrone, DP, McMahon, JJ, Mehl, J, Meyer, SS, Mohr, JJ, Montroy, TE, Murray, SS, Padin, S, Plagge, T, Pryke, C, Reichardt, CL, Rest, A, Ruhl, JE, Schaffer, KK, Shaw, L, Shirokoff, E, Song, J, Spieler, HG, Stalder, B, Stanford, SA, Staniszewski, Z, Stark, AA, Stubbs, CW, Vanderlinde, K, Vieira, JD, Vikhlinin, A, Williamson, R, Yang, Y, Zahn, O & Zenteno, A 2010, 'SPT-CL J0546-5345: A massive z > 1 galaxy cluster selected via the Sunyaev-Zel'dovich Effect with the South Pole Telescope', Astrophysical Journal, vol. 721, no. 1, pp. 90-97. https://doi.org/10.1088/0004-637X/721/1/90

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title = "SPT-CL J0546-5345: A massive z > 1 galaxy cluster selected via the Sunyaev-Zel'dovich Effect with the South Pole Telescope",

abstract = "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 1179-167+232 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 M200 = 1.0-0.4 +0.6×1015M⊙, in agreement with the X-ray and SZE mass measurements. Combining masses from several independent measures leads to a best-estimate mass of M200 = (7.95 ± 0.92) × 1014M⊙. 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.",

keywords = "Galaxies: Evolution, Galaxies: clusters: individual (SPT-CL J0546-5345), Galaxies: distances and redshifts",

author = "M. Brodwin and J. Ruel and Ade, {P. A R} and Aird, {K. A.} and K. Andersson and Ashby, {M. L N} and M. Bautz and G. Bazin and Benson, {B. A.} and Bleem, {L. E.} and Carlstrom, {J. E.} and Chang, {C. L.} and Crawford, {T. M.} and Crites, {A. T.} and {De Haan}, T. and S. Desai and Dobbs, {M. A.} and Dudley, {J. P.} and Fazio, {G. G.} and Foley, {R. J.} and Forman, {W. R.} and G. Garmire and George, {E. M.} and Gladders, {M. D.} and Gonzalez, {A. H.} and Halverson, {N. W.} and High, {F. W.} and Holder, {G. P.} and Holzapfel, {W. L.} and Hrubes, {J. D.} and C. Jones and M. Joy and R. Keisler and L. Knox and Lee, {A. T.} and Leitch, {E. M.} and M. Lueker and Marrone, {D. P.} and McMahon, {J. J.} and J. Mehl and Meyer, {S. S.} and Mohr, {J. J.} and Montroy, {T. E.} and Murray, {S. S.} and S. Padin and T. Plagge and C. Pryke and Reichardt, {C. L.} and A. Rest and Ruhl, {J. E.} and Schaffer, {K. K.} and L. Shaw and E. Shirokoff and J. Song and Spieler, {H. G.} and B. Stalder and Stanford, {S. A.} and Z. Staniszewski and Stark, {A. A.} and Stubbs, {C. W.} and K. Vanderlinde and Vieira, {J. D.} and A. Vikhlinin and R. Williamson and Y. Yang and O. Zahn and A. Zenteno",

year = "2010",

month = sep,

day = "20",

doi = "10.1088/0004-637X/721/1/90",

language = "English (US)",

volume = "721",

pages = "90--97",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "1",

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TY - JOUR

T1 - SPT-CL J0546-5345

T2 - A massive z > 1 galaxy cluster selected via the Sunyaev-Zel'dovich Effect with the South Pole Telescope

AU - Brodwin, M.

AU - Ruel, J.

AU - Ade, P. A R

AU - Aird, K. A.

AU - Andersson, K.

AU - Ashby, M. L N

AU - Bautz, M.

AU - Bazin, G.

AU - Benson, B. A.

AU - Bleem, L. E.

AU - Carlstrom, J. E.

AU - Chang, C. L.

AU - Crawford, T. M.

AU - Crites, A. T.

AU - De Haan, T.

AU - Desai, S.

AU - Dobbs, M. A.

AU - Dudley, J. P.

AU - Fazio, G. G.

AU - Foley, R. J.

AU - Forman, W. R.

AU - Garmire, G.

AU - George, E. M.

AU - Gladders, M. D.

AU - Gonzalez, A. H.

AU - Halverson, N. W.

AU - High, F. W.

AU - Holder, G. P.

AU - Holzapfel, W. L.

AU - Hrubes, J. D.

AU - Jones, C.

AU - Joy, M.

AU - Keisler, R.

AU - Knox, L.

AU - Lee, A. T.

AU - Leitch, E. M.

AU - Lueker, M.

AU - Marrone, D. P.

AU - McMahon, J. J.

AU - Mehl, J.

AU - Meyer, S. S.

AU - Mohr, J. J.

AU - Montroy, T. E.

AU - Murray, S. S.

AU - Padin, S.

AU - Plagge, T.

AU - Pryke, C.

AU - Reichardt, C. L.

AU - Rest, A.

AU - Ruhl, J. E.

AU - Schaffer, K. K.

AU - Shaw, L.

AU - Shirokoff, E.

AU - Song, J.

AU - Spieler, H. G.

AU - Stalder, B.

AU - Stanford, S. A.

AU - Staniszewski, Z.

AU - Stark, A. A.

AU - Stubbs, C. W.

AU - Vanderlinde, K.

AU - Vieira, J. D.

AU - Vikhlinin, A.

AU - Williamson, R.

AU - Yang, Y.

AU - Zahn, O.

AU - Zenteno, A.

PY - 2010/9/20

Y1 - 2010/9/20

N2 - 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 1179-167+232 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 M200 = 1.0-0.4 +0.6×1015M⊙, in agreement with the X-ray and SZE mass measurements. Combining masses from several independent measures leads to a best-estimate mass of M200 = (7.95 ± 0.92) × 1014M⊙. 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.

AB - 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 1179-167+232 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 M200 = 1.0-0.4 +0.6×1015M⊙, in agreement with the X-ray and SZE mass measurements. Combining masses from several independent measures leads to a best-estimate mass of M200 = (7.95 ± 0.92) × 1014M⊙. 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.

KW - Galaxies: Evolution

KW - Galaxies: clusters: individual (SPT-CL J0546-5345)

KW - Galaxies: distances and redshifts

UR - http://www.scopus.com/inward/record.url?scp=78149250940&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78149250940&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/721/1/90

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

M3 - Article

AN - SCOPUS:78149250940

SN - 0004-637X

VL - 721

SP - 90

EP - 97

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

ER -

SPT-CL J0546-5345: A massive z > 1 galaxy cluster selected via the Sunyaev-Zel'dovich Effect with the South Pole Telescope

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