SPT-GMOS: A gemini/GMOS-south spectroscopic survey of galaxy clusters in the SPT-SZ survey

M. B. Bayliss, J. Ruel, C. W. Stubbs, S. W. Allen, D. E. Applegate, M. L.N. Ashby, M. Bautz, B. A. Benson, L. E. Bleem, S. Bocquet, M. Brodwin, R. Capasso, J. E. Carlstrom, C. L. Chang, I. Chiu, H. M. Cho, A. Clocchiatti, T. M. Crawford, A. T. Crites, T. De HaanS. Desai, J. P. Dietrich, M. A. Dobbs, A. N. Doucouliagos, R. J. Foley, W. R. Forman, G. P. Garmire, E. M. George, M. D. Gladders, A. H. Gonzalez, N. Gupta, N. W. Halverson, J. Hlavacek-Larrondo, H. Hoekstra, G. P. Holder, W. L. Holzapfel, Z. Hou, J. D. Hrubes, N. Huang, C. Jones, R. Keisler, L. Knox, A. T. Lee, E. M. Leitch, A. Von Der Linden, D. Luong-Van, A. Mantz, Daniel P Marrone, M. McDonald, J. J. McMahon, S. S. Meyer, L. M. Mocanu, J. J. Mohr, S. S. Murray, S. Padin, C. Pryke, D. Rapetti, C. L. Reichardt, A. Rest, J. E. Ruhl, B. R. Saliwanchik, A. Saro, J. T. Sayre, K. K. Schaffer, T. Schrabback, E. Shirokoff, J. Song, H. G. Spieler, B. Stalder, S. A. Stanford, Z. Staniszewski, A. A. Stark, K. T. Story, K. Vanderlinde, J. D. Vieira, A. Vikhlinin, R. Williamson, A. Zenteno

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We present the results of SPT-GMOS, a spectroscopic survey with the Gemini Multi-Object Spectrograph (GMOS) on Gemini South. The targets of SPT-GMOS are galaxy clusters identified in the SPT-SZ survey, a millimeter-wave survey of 2500 deg2 of the southern sky using the South Pole Telescope (SPT). Multi-object spectroscopic observations of 62 SPT-selected galaxy clusters were performed between 2011 January and 2015 December, yielding spectra with radial velocity measurements for 2595 sources. We identify 2243 of these sources as galaxies, and 352 as stars. Of the galaxies, we identify 1579 as members of SPT-SZ galaxy clusters. The primary goal of these observations was to obtain spectra of cluster member galaxies to estimate cluster redshifts and velocity dispersions. We describe the full spectroscopic data set and resulting data products, including galaxy redshifts, cluster redshifts, and velocity dispersions, and measurements of several well-known spectral indices for each galaxy: the equivalent width, W, of [O ii] λλ3727, 3729 and H-δ, and the 4000 - break strength, D4000. We use the spectral indices to classify galaxies by spectral type (i.e., passive, post-starburst, star-forming), and we match the spectra against photometric catalogs to characterize spectroscopically observed cluster members as a function of brightness (relative to m ). Finally, we report several new measurements of redshifts for ten bright, strongly lensed background galaxies in the cores of eight galaxy clusters. Combining the SPT-GMOS data set with previous spectroscopic follow-up of SPT-SZ galaxy clusters results in spectroscopic measurements for >100 clusters, or ∼20% of the full SPT-SZ sample.

Original languageEnglish (US)
Article number3
JournalAstrophysical Journal, Supplement Series
Volume227
Issue number1
DOIs
StatePublished - Nov 1 2016

Fingerprint

spectrographs
poles
telescopes
galaxies
Southern sky
stars
data products
index
velocity measurement
radial velocity
millimeter waves
catalogs
brightness
product

Keywords

  • catalogs
  • galaxies: clusters: general
  • galaxies: distances and redshifts
  • techniques: spectroscopic

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Bayliss, M. B., Ruel, J., Stubbs, C. W., Allen, S. W., Applegate, D. E., Ashby, M. L. N., ... Zenteno, A. (2016). SPT-GMOS: A gemini/GMOS-south spectroscopic survey of galaxy clusters in the SPT-SZ survey. Astrophysical Journal, Supplement Series, 227(1), [3]. https://doi.org/10.3847/0067-0049/227/1/3

SPT-GMOS : A gemini/GMOS-south spectroscopic survey of galaxy clusters in the SPT-SZ survey. / Bayliss, M. B.; Ruel, J.; Stubbs, C. W.; Allen, S. W.; Applegate, D. E.; Ashby, M. L.N.; Bautz, M.; Benson, B. A.; Bleem, L. E.; Bocquet, S.; Brodwin, M.; Capasso, R.; Carlstrom, J. E.; Chang, C. L.; Chiu, I.; Cho, H. M.; Clocchiatti, A.; Crawford, T. M.; Crites, A. T.; De Haan, T.; Desai, S.; Dietrich, J. P.; Dobbs, M. A.; Doucouliagos, A. N.; Foley, R. J.; Forman, W. R.; Garmire, G. P.; George, E. M.; Gladders, M. D.; Gonzalez, A. H.; Gupta, N.; Halverson, N. W.; Hlavacek-Larrondo, J.; Hoekstra, H.; Holder, G. P.; Holzapfel, W. L.; Hou, Z.; Hrubes, J. D.; Huang, N.; Jones, C.; Keisler, R.; Knox, L.; Lee, A. T.; Leitch, E. M.; Von Der Linden, A.; Luong-Van, D.; Mantz, A.; Marrone, Daniel P; McDonald, M.; McMahon, J. J.; Meyer, S. S.; Mocanu, L. M.; Mohr, J. J.; Murray, S. S.; Padin, S.; Pryke, C.; Rapetti, D.; Reichardt, C. L.; Rest, A.; Ruhl, J. E.; Saliwanchik, B. R.; Saro, A.; Sayre, J. T.; Schaffer, K. K.; Schrabback, T.; Shirokoff, E.; Song, J.; Spieler, H. G.; Stalder, B.; Stanford, S. A.; Staniszewski, Z.; Stark, A. A.; Story, K. T.; Vanderlinde, K.; Vieira, J. D.; Vikhlinin, A.; Williamson, R.; Zenteno, A.

In: Astrophysical Journal, Supplement Series, Vol. 227, No. 1, 3, 01.11.2016.

Research output: Contribution to journalArticle

Bayliss, MB, Ruel, J, Stubbs, CW, Allen, SW, Applegate, DE, Ashby, MLN, Bautz, M, Benson, BA, Bleem, LE, Bocquet, S, Brodwin, M, Capasso, R, Carlstrom, JE, Chang, CL, Chiu, I, Cho, HM, Clocchiatti, A, Crawford, TM, Crites, AT, De Haan, T, Desai, S, Dietrich, JP, Dobbs, MA, Doucouliagos, AN, Foley, RJ, Forman, WR, Garmire, GP, George, EM, Gladders, MD, Gonzalez, AH, Gupta, N, Halverson, NW, Hlavacek-Larrondo, J, Hoekstra, H, Holder, GP, Holzapfel, WL, Hou, Z, Hrubes, JD, Huang, N, Jones, C, Keisler, R, Knox, L, Lee, AT, Leitch, EM, Von Der Linden, A, Luong-Van, D, Mantz, A, Marrone, DP, McDonald, M, McMahon, JJ, Meyer, SS, Mocanu, LM, Mohr, JJ, Murray, SS, Padin, S, Pryke, C, Rapetti, D, Reichardt, CL, Rest, A, Ruhl, JE, Saliwanchik, BR, Saro, A, Sayre, JT, Schaffer, KK, Schrabback, T, Shirokoff, E, Song, J, Spieler, HG, Stalder, B, Stanford, SA, Staniszewski, Z, Stark, AA, Story, KT, Vanderlinde, K, Vieira, JD, Vikhlinin, A, Williamson, R & Zenteno, A 2016, 'SPT-GMOS: A gemini/GMOS-south spectroscopic survey of galaxy clusters in the SPT-SZ survey', Astrophysical Journal, Supplement Series, vol. 227, no. 1, 3. https://doi.org/10.3847/0067-0049/227/1/3
Bayliss, M. B. ; Ruel, J. ; Stubbs, C. W. ; Allen, S. W. ; Applegate, D. E. ; Ashby, M. L.N. ; Bautz, M. ; Benson, B. A. ; Bleem, L. E. ; Bocquet, S. ; Brodwin, M. ; Capasso, R. ; Carlstrom, J. E. ; Chang, C. L. ; Chiu, I. ; Cho, H. M. ; Clocchiatti, A. ; Crawford, T. M. ; Crites, A. T. ; De Haan, T. ; Desai, S. ; Dietrich, J. P. ; Dobbs, M. A. ; Doucouliagos, A. N. ; Foley, R. J. ; Forman, W. R. ; Garmire, G. P. ; George, E. M. ; Gladders, M. D. ; Gonzalez, A. H. ; Gupta, N. ; Halverson, N. W. ; Hlavacek-Larrondo, J. ; Hoekstra, H. ; Holder, G. P. ; Holzapfel, W. L. ; Hou, Z. ; Hrubes, J. D. ; Huang, N. ; Jones, C. ; Keisler, R. ; Knox, L. ; Lee, A. T. ; Leitch, E. M. ; Von Der Linden, A. ; Luong-Van, D. ; Mantz, A. ; Marrone, Daniel P ; McDonald, M. ; McMahon, J. J. ; Meyer, S. S. ; Mocanu, L. M. ; Mohr, J. J. ; Murray, S. S. ; Padin, S. ; Pryke, C. ; Rapetti, D. ; Reichardt, C. L. ; Rest, A. ; Ruhl, J. E. ; Saliwanchik, B. R. ; Saro, A. ; Sayre, J. T. ; Schaffer, K. K. ; Schrabback, T. ; Shirokoff, E. ; Song, J. ; Spieler, H. G. ; Stalder, B. ; Stanford, S. A. ; Staniszewski, Z. ; Stark, A. A. ; Story, K. T. ; Vanderlinde, K. ; Vieira, J. D. ; Vikhlinin, A. ; Williamson, R. ; Zenteno, A. / SPT-GMOS : A gemini/GMOS-south spectroscopic survey of galaxy clusters in the SPT-SZ survey. In: Astrophysical Journal, Supplement Series. 2016 ; Vol. 227, No. 1.
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abstract = "We present the results of SPT-GMOS, a spectroscopic survey with the Gemini Multi-Object Spectrograph (GMOS) on Gemini South. The targets of SPT-GMOS are galaxy clusters identified in the SPT-SZ survey, a millimeter-wave survey of 2500 deg2 of the southern sky using the South Pole Telescope (SPT). Multi-object spectroscopic observations of 62 SPT-selected galaxy clusters were performed between 2011 January and 2015 December, yielding spectra with radial velocity measurements for 2595 sources. We identify 2243 of these sources as galaxies, and 352 as stars. Of the galaxies, we identify 1579 as members of SPT-SZ galaxy clusters. The primary goal of these observations was to obtain spectra of cluster member galaxies to estimate cluster redshifts and velocity dispersions. We describe the full spectroscopic data set and resulting data products, including galaxy redshifts, cluster redshifts, and velocity dispersions, and measurements of several well-known spectral indices for each galaxy: the equivalent width, W, of [O ii] λλ3727, 3729 and H-δ, and the 4000 - break strength, D4000. We use the spectral indices to classify galaxies by spectral type (i.e., passive, post-starburst, star-forming), and we match the spectra against photometric catalogs to characterize spectroscopically observed cluster members as a function of brightness (relative to m ∗). Finally, we report several new measurements of redshifts for ten bright, strongly lensed background galaxies in the cores of eight galaxy clusters. Combining the SPT-GMOS data set with previous spectroscopic follow-up of SPT-SZ galaxy clusters results in spectroscopic measurements for >100 clusters, or ∼20{\%} of the full SPT-SZ sample.",
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TY - JOUR

T1 - SPT-GMOS

T2 - A gemini/GMOS-south spectroscopic survey of galaxy clusters in the SPT-SZ survey

AU - Bayliss, M. B.

AU - Ruel, J.

AU - Stubbs, C. W.

AU - Allen, S. W.

AU - Applegate, D. E.

AU - Ashby, M. L.N.

AU - Bautz, M.

AU - Benson, B. A.

AU - Bleem, L. E.

AU - Bocquet, S.

AU - Brodwin, M.

AU - Capasso, R.

AU - Carlstrom, J. E.

AU - Chang, C. L.

AU - Chiu, I.

AU - Cho, H. M.

AU - Clocchiatti, A.

AU - Crawford, T. M.

AU - Crites, A. T.

AU - De Haan, T.

AU - Desai, S.

AU - Dietrich, J. P.

AU - Dobbs, M. A.

AU - Doucouliagos, A. N.

AU - Foley, R. J.

AU - Forman, W. R.

AU - Garmire, G. P.

AU - George, E. M.

AU - Gladders, M. D.

AU - Gonzalez, A. H.

AU - Gupta, N.

AU - Halverson, N. W.

AU - Hlavacek-Larrondo, J.

AU - Hoekstra, H.

AU - Holder, G. P.

AU - Holzapfel, W. L.

AU - Hou, Z.

AU - Hrubes, J. D.

AU - Huang, N.

AU - Jones, C.

AU - Keisler, R.

AU - Knox, L.

AU - Lee, A. T.

AU - Leitch, E. M.

AU - Von Der Linden, A.

AU - Luong-Van, D.

AU - Mantz, A.

AU - Marrone, Daniel P

AU - McDonald, M.

AU - McMahon, J. J.

AU - Meyer, S. S.

AU - Mocanu, L. M.

AU - Mohr, J. J.

AU - Murray, S. S.

AU - Padin, S.

AU - Pryke, C.

AU - Rapetti, D.

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 - Schrabback, T.

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 - Story, K. T.

AU - Vanderlinde, K.

AU - Vieira, J. D.

AU - Vikhlinin, A.

AU - Williamson, R.

AU - Zenteno, A.

PY - 2016/11/1

Y1 - 2016/11/1

N2 - We present the results of SPT-GMOS, a spectroscopic survey with the Gemini Multi-Object Spectrograph (GMOS) on Gemini South. The targets of SPT-GMOS are galaxy clusters identified in the SPT-SZ survey, a millimeter-wave survey of 2500 deg2 of the southern sky using the South Pole Telescope (SPT). Multi-object spectroscopic observations of 62 SPT-selected galaxy clusters were performed between 2011 January and 2015 December, yielding spectra with radial velocity measurements for 2595 sources. We identify 2243 of these sources as galaxies, and 352 as stars. Of the galaxies, we identify 1579 as members of SPT-SZ galaxy clusters. The primary goal of these observations was to obtain spectra of cluster member galaxies to estimate cluster redshifts and velocity dispersions. We describe the full spectroscopic data set and resulting data products, including galaxy redshifts, cluster redshifts, and velocity dispersions, and measurements of several well-known spectral indices for each galaxy: the equivalent width, W, of [O ii] λλ3727, 3729 and H-δ, and the 4000 - break strength, D4000. We use the spectral indices to classify galaxies by spectral type (i.e., passive, post-starburst, star-forming), and we match the spectra against photometric catalogs to characterize spectroscopically observed cluster members as a function of brightness (relative to m ∗). Finally, we report several new measurements of redshifts for ten bright, strongly lensed background galaxies in the cores of eight galaxy clusters. Combining the SPT-GMOS data set with previous spectroscopic follow-up of SPT-SZ galaxy clusters results in spectroscopic measurements for >100 clusters, or ∼20% of the full SPT-SZ sample.

AB - We present the results of SPT-GMOS, a spectroscopic survey with the Gemini Multi-Object Spectrograph (GMOS) on Gemini South. The targets of SPT-GMOS are galaxy clusters identified in the SPT-SZ survey, a millimeter-wave survey of 2500 deg2 of the southern sky using the South Pole Telescope (SPT). Multi-object spectroscopic observations of 62 SPT-selected galaxy clusters were performed between 2011 January and 2015 December, yielding spectra with radial velocity measurements for 2595 sources. We identify 2243 of these sources as galaxies, and 352 as stars. Of the galaxies, we identify 1579 as members of SPT-SZ galaxy clusters. The primary goal of these observations was to obtain spectra of cluster member galaxies to estimate cluster redshifts and velocity dispersions. We describe the full spectroscopic data set and resulting data products, including galaxy redshifts, cluster redshifts, and velocity dispersions, and measurements of several well-known spectral indices for each galaxy: the equivalent width, W, of [O ii] λλ3727, 3729 and H-δ, and the 4000 - break strength, D4000. We use the spectral indices to classify galaxies by spectral type (i.e., passive, post-starburst, star-forming), and we match the spectra against photometric catalogs to characterize spectroscopically observed cluster members as a function of brightness (relative to m ∗). Finally, we report several new measurements of redshifts for ten bright, strongly lensed background galaxies in the cores of eight galaxy clusters. Combining the SPT-GMOS data set with previous spectroscopic follow-up of SPT-SZ galaxy clusters results in spectroscopic measurements for >100 clusters, or ∼20% of the full SPT-SZ sample.

KW - catalogs

KW - galaxies: clusters: general

KW - galaxies: distances and redshifts

KW - techniques: spectroscopic

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JF - Astrophysical Journal, Supplement Series

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