SPT-CL J2040-4451: An SZ-selected galaxy cluster at z = 1.478 with significant ongoing star formation

M. B. Bayliss; M. L.N. Ashby; J. Ruel; M. Brodwin; K. A. Aird; M. W. Bautz; B. A. Benson; L. E. Bleem; S. Bocquet; J. E. Carlstrom; C. L. Chang; H. M. Cho; A. Clocchiatti; T. M. Crawford; A. T. Crites; S. Desai; M. A. Dobbs; J. P. Dudley; R. J. Foley; W. R. Forman; E. M. George; D. Gettings; M. D. Gladders; A. H. Gonzalez; T. De Haan; N. W. Halverson; F. W. High; G. P. Holder; W. L. Holzapfel; S. Hoover; J. D. Hrubes; C. Jones; M. Joy; R. Keisler; L. Knox; A. T. Lee; E. M. Leitch; J. Liu; M. Lueker; D. Luong-Van; A. Mantz; D. P. Marrone; K. Mawatari; M. McDonald; J. J. McMahon; J. Mehl; S. S. Meyer; E. D. Miller; L. Mocanu; J. J. Mohr; T. E. Montroy; S. S. Murray; S. Padin; T. Plagge; C. Pryke; C. L. Reichardt; A. Rest; J. E. Ruhl; B. R. Saliwanchik; A. Saro; J. T. Sayre; K. K. Schaffer; E. Shirokoff; J. Song; B. Stalder; R. Šuhada; H. G. Spieler; S. A. Stanford; Z. Staniszewski; A. A. Stark; K. Story; C. W. Stubbs; A. Van Engelen; K. Vanderlinde; J. D. Vieira; A. Vikhlinin; R. Williamson; O. Zahn; A. Zenteno

doi:10.1088/0004-637X/794/1/12

SPT-CL J2040-4451: An SZ-selected galaxy cluster at z = 1.478 with significant ongoing star formation

M. B. Bayliss, M. L.N. Ashby, J. Ruel, M. Brodwin, K. A. Aird, M. W. Bautz, B. A. Benson, L. E. Bleem, S. Bocquet, J. E. Carlstrom, C. L. Chang, H. M. Cho, A. Clocchiatti, T. M. Crawford, A. T. Crites, S. Desai, M. A. Dobbs, J. P. Dudley, R. J. Foley, W. R. FormanE. M. George, D. Gettings, M. D. Gladders, A. H. Gonzalez, T. De Haan, N. W. Halverson, F. W. High, G. P. Holder, W. L. Holzapfel, S. Hoover, J. D. Hrubes, C. Jones, M. Joy, R. Keisler, L. Knox, A. T. Lee, E. M. Leitch, J. Liu, M. Lueker, D. Luong-Van, A. Mantz, D. P. Marrone, K. Mawatari, M. McDonald, J. J. McMahon, J. Mehl, S. S. Meyer, E. D. Miller, L. Mocanu, J. J. Mohr, T. E. Montroy, S. S. Murray, S. Padin, T. Plagge, C. Pryke, C. L. Reichardt, A. Rest, J. E. Ruhl, B. R. Saliwanchik, A. Saro, J. T. Sayre, K. K. Schaffer, E. Shirokoff, J. Song, B. Stalder, R. Šuhada, H. G. Spieler, S. A. Stanford, Z. Staniszewski, A. A. Stark, K. Story, C. W. Stubbs, A. Van Engelen, K. Vanderlinde, J. D. Vieira, A. Vikhlinin, R. Williamson, O. Zahn, A. Zenteno

Research output: Contribution to journal › Article › peer-review

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Abstract

SPT-CL J2040-4451 - spectroscopically confirmed at z = 1.478 - is the highest-redshift galaxy cluster yet discovered via the Sunyaev-Zel'dovich effect. SPT-CL J2040-4451 was a candidate galaxy cluster identified in the first 720 deg²of the South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) survey, and has been confirmed in follow-up imaging and spectroscopy. From multi-object spectroscopy with Magellan-I/Baade+IMACS we measure spectroscopic redshifts for 15 cluster member galaxies, all of which have strong [O II] λλ3727 emission. SPT-CL J2040-4451 has an SZ-measured mass of M₅₀₀, SZ = 3.2 ± 0.8 × 10¹⁴M_h, corresponding to M₂₀₀, SZ = 5.8 ± 1.4 × 10¹⁴M_h. The velocity dispersion measured entirely from blue star-forming members is σ_v= 1500 ± 520 km s^-1. The prevalence of star-forming cluster members (galaxies with >1.5 M yr^-1) implies that this massive, high-redshift cluster is experiencing a phase of active star formation, and supports recent results showing a marked increase in star formation occurring in galaxy clusters at z ≳ 1.4. We also compute the probability of finding a cluster as rare as this in the SPT-SZ survey to be >99%, indicating that its discovery is not in tension with the concordance ΛCDM cosmological model.

Original language	English (US)
Article number	12
Journal	Astrophysical Journal
Volume	794
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/794/1/12
State	Published - Oct 10 2014
Externally published	Yes

Keywords

galaxies: clusters: individual (SPT-CL J2040-4451)
galaxies: distances and redshifts
galaxies: evolution
large-scale structure of universe

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/0004-637X/794/1/12

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Bayliss, M. B., Ashby, M. L. N., Ruel, J., Brodwin, M., Aird, K. A., Bautz, M. W., Benson, B. A., Bleem, L. E., Bocquet, S., Carlstrom, J. E., Chang, C. L., Cho, H. M., Clocchiatti, A., Crawford, T. M., Crites, A. T., Desai, S., Dobbs, M. A., Dudley, J. P., Foley, R. J., ... Zenteno, A. (2014). SPT-CL J2040-4451: An SZ-selected galaxy cluster at z = 1.478 with significant ongoing star formation. Astrophysical Journal, 794(1), Article 12. https://doi.org/10.1088/0004-637X/794/1/12

Bayliss, MB, Ashby, MLN, Ruel, J, Brodwin, M, Aird, KA, Bautz, MW, Benson, BA, Bleem, LE, Bocquet, S, Carlstrom, JE, Chang, CL, Cho, HM, Clocchiatti, A, Crawford, TM, Crites, AT, Desai, S, Dobbs, MA, Dudley, JP, Foley, RJ, Forman, WR, George, EM, Gettings, D, Gladders, MD, Gonzalez, AH, De Haan, T, Halverson, NW, High, FW, Holder, GP, Holzapfel, WL, Hoover, S, Hrubes, JD, Jones, C, Joy, M, Keisler, R, Knox, L, Lee, AT, Leitch, EM, Liu, J, Lueker, M, Luong-Van, D, Mantz, A, Marrone, DP, Mawatari, K, McDonald, M, McMahon, JJ, Mehl, J, Meyer, SS, Miller, ED, Mocanu, L, Mohr, JJ, Montroy, TE, Murray, SS, Padin, S, Plagge, T, Pryke, C, Reichardt, CL, Rest, A, Ruhl, JE, Saliwanchik, BR, Saro, A, Sayre, JT, Schaffer, KK, Shirokoff, E, Song, J, Stalder, B, Šuhada, R, Spieler, HG, Stanford, SA, Staniszewski, Z, Stark, AA, Story, K, Stubbs, CW, Van Engelen, A, Vanderlinde, K, Vieira, JD, Vikhlinin, A, Williamson, R, Zahn, O & Zenteno, A 2014, 'SPT-CL J2040-4451: An SZ-selected galaxy cluster at z = 1.478 with significant ongoing star formation', Astrophysical Journal, vol. 794, no. 1, 12. https://doi.org/10.1088/0004-637X/794/1/12

@article{bd84354d4d46474bb64c590108966e20,

title = "SPT-CL J2040-4451: An SZ-selected galaxy cluster at z = 1.478 with significant ongoing star formation",

abstract = "SPT-CL J2040-4451 - spectroscopically confirmed at z = 1.478 - is the highest-redshift galaxy cluster yet discovered via the Sunyaev-Zel'dovich effect. SPT-CL J2040-4451 was a candidate galaxy cluster identified in the first 720 deg2of the South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) survey, and has been confirmed in follow-up imaging and spectroscopy. From multi-object spectroscopy with Magellan-I/Baade+IMACS we measure spectroscopic redshifts for 15 cluster member galaxies, all of which have strong [O II] λλ3727 emission. SPT-CL J2040-4451 has an SZ-measured mass of M500, SZ = 3.2 ± 0.8 × 1014Mh, corresponding to M200, SZ = 5.8 ± 1.4 × 1014Mh. The velocity dispersion measured entirely from blue star-forming members is σv= 1500 ± 520 km s-1. The prevalence of star-forming cluster members (galaxies with >1.5 M yr-1) implies that this massive, high-redshift cluster is experiencing a phase of active star formation, and supports recent results showing a marked increase in star formation occurring in galaxy clusters at z ≳ 1.4. We also compute the probability of finding a cluster as rare as this in the SPT-SZ survey to be >99%, indicating that its discovery is not in tension with the concordance ΛCDM cosmological model.",

keywords = "galaxies: clusters: individual (SPT-CL J2040-4451), galaxies: distances and redshifts, galaxies: evolution, large-scale structure of universe",

author = "Bayliss, {M. B.} and Ashby, {M. L.N.} and J. Ruel and M. Brodwin and Aird, {K. A.} and Bautz, {M. W.} and Benson, {B. A.} and Bleem, {L. E.} and S. Bocquet and Carlstrom, {J. E.} and Chang, {C. L.} and Cho, {H. M.} and A. Clocchiatti and Crawford, {T. M.} and Crites, {A. T.} and S. Desai and Dobbs, {M. A.} and Dudley, {J. P.} and Foley, {R. J.} and Forman, {W. R.} and George, {E. M.} and D. Gettings and Gladders, {M. D.} and Gonzalez, {A. H.} and {De Haan}, T. and Halverson, {N. W.} and High, {F. W.} and Holder, {G. P.} and Holzapfel, {W. L.} and S. Hoover 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 J. Liu and M. Lueker and D. Luong-Van and A. Mantz and Marrone, {D. P.} and K. Mawatari and M. McDonald and McMahon, {J. J.} and J. Mehl and Meyer, {S. S.} and Miller, {E. D.} and L. Mocanu 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 Saliwanchik, {B. R.} and A. Saro and Sayre, {J. T.} and Schaffer, {K. K.} and E. Shirokoff and J. Song and B. Stalder and R. {\v S}uhada and Spieler, {H. G.} and Stanford, {S. A.} and Z. Staniszewski and Stark, {A. A.} and K. Story and Stubbs, {C. W.} and {Van Engelen}, A. and K. Vanderlinde and Vieira, {J. D.} and A. Vikhlinin and R. Williamson and O. Zahn and A. Zenteno",

year = "2014",

month = oct,

day = "10",

doi = "10.1088/0004-637X/794/1/12",

language = "English (US)",

volume = "794",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "1",

}

TY - JOUR

T1 - SPT-CL J2040-4451

T2 - An SZ-selected galaxy cluster at z = 1.478 with significant ongoing star formation

AU - Bayliss, M. B.

AU - Ashby, M. L.N.

AU - Ruel, J.

AU - Brodwin, M.

AU - Aird, K. A.

AU - Bautz, M. W.

AU - Benson, B. A.

AU - Bleem, L. E.

AU - Bocquet, S.

AU - Carlstrom, J. E.

AU - Chang, C. L.

AU - Cho, H. M.

AU - Clocchiatti, A.

AU - Crawford, T. M.

AU - Crites, A. T.

AU - Desai, S.

AU - Dobbs, M. A.

AU - Dudley, J. P.

AU - Foley, R. J.

AU - Forman, W. R.

AU - George, E. M.

AU - Gettings, D.

AU - Gladders, M. D.

AU - Gonzalez, A. H.

AU - De Haan, T.

AU - Halverson, N. W.

AU - High, F. W.

AU - Holder, G. P.

AU - Holzapfel, W. L.

AU - Hoover, S.

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 - Liu, J.

AU - Lueker, M.

AU - Luong-Van, D.

AU - Mantz, A.

AU - Marrone, D. P.

AU - Mawatari, K.

AU - McDonald, M.

AU - McMahon, J. J.

AU - Mehl, J.

AU - Meyer, S. S.

AU - Miller, E. D.

AU - Mocanu, L.

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 - Saliwanchik, B. R.

AU - Saro, A.

AU - Sayre, J. T.

AU - Schaffer, K. K.

AU - Shirokoff, E.

AU - Song, J.

AU - Stalder, B.

AU - Šuhada, R.

AU - Spieler, H. G.

AU - Stanford, S. A.

AU - Staniszewski, Z.

AU - Stark, A. A.

AU - Story, K.

AU - Stubbs, C. W.

AU - Van Engelen, A.

AU - Vanderlinde, K.

AU - Vieira, J. D.

AU - Vikhlinin, A.

AU - Williamson, R.

AU - Zahn, O.

AU - Zenteno, A.

PY - 2014/10/10

Y1 - 2014/10/10

N2 - SPT-CL J2040-4451 - spectroscopically confirmed at z = 1.478 - is the highest-redshift galaxy cluster yet discovered via the Sunyaev-Zel'dovich effect. SPT-CL J2040-4451 was a candidate galaxy cluster identified in the first 720 deg2of the South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) survey, and has been confirmed in follow-up imaging and spectroscopy. From multi-object spectroscopy with Magellan-I/Baade+IMACS we measure spectroscopic redshifts for 15 cluster member galaxies, all of which have strong [O II] λλ3727 emission. SPT-CL J2040-4451 has an SZ-measured mass of M500, SZ = 3.2 ± 0.8 × 1014Mh, corresponding to M200, SZ = 5.8 ± 1.4 × 1014Mh. The velocity dispersion measured entirely from blue star-forming members is σv= 1500 ± 520 km s-1. The prevalence of star-forming cluster members (galaxies with >1.5 M yr-1) implies that this massive, high-redshift cluster is experiencing a phase of active star formation, and supports recent results showing a marked increase in star formation occurring in galaxy clusters at z ≳ 1.4. We also compute the probability of finding a cluster as rare as this in the SPT-SZ survey to be >99%, indicating that its discovery is not in tension with the concordance ΛCDM cosmological model.

AB - SPT-CL J2040-4451 - spectroscopically confirmed at z = 1.478 - is the highest-redshift galaxy cluster yet discovered via the Sunyaev-Zel'dovich effect. SPT-CL J2040-4451 was a candidate galaxy cluster identified in the first 720 deg2of the South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) survey, and has been confirmed in follow-up imaging and spectroscopy. From multi-object spectroscopy with Magellan-I/Baade+IMACS we measure spectroscopic redshifts for 15 cluster member galaxies, all of which have strong [O II] λλ3727 emission. SPT-CL J2040-4451 has an SZ-measured mass of M500, SZ = 3.2 ± 0.8 × 1014Mh, corresponding to M200, SZ = 5.8 ± 1.4 × 1014Mh. The velocity dispersion measured entirely from blue star-forming members is σv= 1500 ± 520 km s-1. The prevalence of star-forming cluster members (galaxies with >1.5 M yr-1) implies that this massive, high-redshift cluster is experiencing a phase of active star formation, and supports recent results showing a marked increase in star formation occurring in galaxy clusters at z ≳ 1.4. We also compute the probability of finding a cluster as rare as this in the SPT-SZ survey to be >99%, indicating that its discovery is not in tension with the concordance ΛCDM cosmological model.

KW - galaxies: clusters: individual (SPT-CL J2040-4451)

KW - galaxies: distances and redshifts

KW - galaxies: evolution

KW - large-scale structure of universe

UR - http://www.scopus.com/inward/record.url?scp=84907459481&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84907459481&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/794/1/12

DO - 10.1088/0004-637X/794/1/12

M3 - Article

AN - SCOPUS:84907459481

SN - 0004-637X

VL - 794

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 12

ER -

SPT-CL J2040-4451: An SZ-selected galaxy cluster at z = 1.478 with significant ongoing star formation

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