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    SPT-GMOS: A GEMINI/GMOS-SOUTH SPECTROSCOPIC SURVEY OF GALAXY CLUSTERS IN THE SPT-SZ SURVEY

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    Bayliss_2016_ApJS_227_3.pdf
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    FInal Published Version
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    Author
    Bayliss, M. cc
    Ruel, J.
    Stubbs, C. W. cc
    Allen, S. W.
    Applegate, D. E. cc
    Ashby, M. L. N. cc
    Bautz, M.
    Benson, B. A.
    Bleem, L. E.
    Bocquet, S. cc
    Brodwin, Mark cc
    Capasso, R.
    Carlstrom, J. E.
    Chang, C. L.
    Chiu, I.
    Cho, H-M.
    Clocchiatti, A.
    Crawford, T. M.
    Crites, A. T.
    Haan, T. de cc
    Desai, S.
    Dietrich, J. P. cc
    Dobbs, M. A.
    Doucouliagos, A. N.
    Foley, R. J.
    Forman, William R. cc
    Garmire, G. P. cc
    George, E. M. cc
    Gladders, M. D.
    Gonzalez, Anthony H. cc
    Gupta, N.
    Halverson, N. W.
    Hlavacek-Larrondo, J. cc
    Hoekstra, H. cc
    Holder, G. P. cc
    Holzapfel, W. L.
    Hou, Z.
    Hrubes, J. D.
    Huang, N.
    Jones, C.
    Keisler, R.
    Knox, L.
    Lee, A. T.
    Leitch, E. M.
    Linden, A. von der
    Luong-Van, D.
    Mantz, A.
    Marrone, Daniel P. cc
    McDonald, M. cc
    McMahon, J. J.
    Meyer, S. S.
    Mocanu, L. M.
    Mohr, J. J.
    Murray, S. S.
    Padin, S.
    Pryke, C.
    Rapetti, D.
    Reichardt, C. L. cc
    Rest, A.
    Ruhl, J. E.
    Saliwanchik, B. R. cc
    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. cc
    Story, K. T.
    Vanderlinde, K.
    Vieira, J. D. cc
    Vikhlinin, A. cc
    Williamson, R.
    Zenteno, A.
    Show allShow less
    Affiliation
    Univ Arizona, Steward Observ
    Issue Date
    2016-11-09
    Keywords
    galaxies: clusters: general
    galaxies: distances and redshifts
    techniques: spectroscopic
    
    Metadata
    Show full item record
    Publisher
    IOP PUBLISHING LTD
    Citation
    SPT-GMOS: A GEMINI/GMOS-SOUTH SPECTROSCOPIC SURVEY OF GALAXY CLUSTERS IN THE SPT-SZ SURVEY 2016, 227 (1):3 The Astrophysical Journal Supplement Series
    Journal
    The Astrophysical Journal Supplement Series
    Rights
    © 2016. The American Astronomical Society. All rights reserved.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    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 deg(2) 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] lambda lambda 3727, 3729 and H-delta, and the 4000 angstrom 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 similar to 20% of the full SPT-SZ sample.
    ISSN
    1538-4365
    DOI
    10.3847/0067-0049/227/1/3
    Version
    Final published version
    Sponsors
    National Science Foundation [AST-1009012, PHY-1125897]; Kavli Foundation; Gordon and Betty Moore Foundation [GBMF 947]; NSF [AST-1009649, MRI-0723073]; Alfred P. Sloan Foundation; U.S. Department of Energy [DE-AC02-06CH11357]; Fermi Research Alliance, LLC [DE-AC02-07CH11359]; United States Department of Energy; NASA through Space Telescope Science Institute [HST-GO-13412.004-A]; NASA [NAS 5-26555]; [GS-2011A-C-03]; [GS-2011A-C-04]; [GS-2011B-C-06]; [GS-2011B-C-33]; [GS-2012A-Q-04]; [GS-2012A-Q-37]; [GS-2012B-Q-29]; [GS-2012B-Q-59]; [GS-2013A-Q-05]; [GS-2013A-Q-45]; [GS-2013B-Q-25]; [GS-2013B-Q-72]; [GS-2014B-Q-31]; [GS-2014B-Q-64]; [13412]
    Additional Links
    http://stacks.iop.org/0067-0049/227/i=1/a=3?key=crossref.1629b058f3a7c6c2bcc141bc5f156815
    ae974a485f413a2113503eed53cd6c53
    10.3847/0067-0049/227/1/3
    Scopus Count
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    UA Faculty Publications

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