Optical spectroscopy and velocity dispersions of galaxy clusters from the SPT-SZ survey
We present optical spectroscopy of galaxies in clusters detected through the Sunyaev–Zel’dovich (SZ) effect with the South Pole Telescope (SPT). We report our own measurements of 61 spectroscopic cluster redshifts, and 48 velocity dispersions each calculated with more than 15 member galaxies. This c...
Published in: | The Astrophysical Journal |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2014
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Subjects: | |
Online Access: | http://hdl.handle.net/11368/2963123 https://doi.org/10.1088/0004-637X/792/1/45 http://iopscience.iop.org/0004-637X/792/1/45/pdf/0004-637X_792_1_45.pdf |
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ftunitriestiris:oai:arts.units.it:11368/2963123 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) |
op_collection_id |
ftunitriestiris |
language |
English |
topic |
catalog galaxies: clusters: general Astronomy and Astrophysic Space and Planetary Science |
spellingShingle |
catalog galaxies: clusters: general Astronomy and Astrophysic Space and Planetary Science Ruel, J. Bazin, G. Bayliss, M. Brodwin, M. Foley, R. J. Stalder, B. Aird, K. A. Armstrong, R. Ashby, M. L. N. Bautz, M. Benson, B. A. Bleem, L. E. Bocquet, S. Carlstrom, J. E. Chang, C. L. Chapman, S. C. Cho, H. M. Clocchiatti, A. Crawford, T. M. Crites, A. T. De Haan, T. Desai, S. Dobbs, M. A. Dudley, J. P. Forman, W. R. George, E. M. Gladders, M. D. Gonzalez, A. H. Halverson, N. W. Harrington, N. L. High, F. W. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Jones, C. Joy, M. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Liu, J. Lueker, M. Luong-Van, D. Mantz, A. Marrone, D. P. McDonald, M. McMahon, J. J. Mehl, J. Meyer, S. S. Mocanu, L. Mohr, J. J. Montroy, T. E. Murray, S. S. Natoli, T. Nurgaliev, D. Padin, S. Plagge, T. Pryke, C. Reichardt, C. L. Rest, A. Ruhl, J. E. Saliwanchik, B. R. Saro, A. Sayre, J. T. Schaffer, K. K. Shaw, L. Shirokoff, E. Song, J. Šuhada, R. Spieler, H. G. Stanford, S. A. Staniszewski, Z. Starsk, A. A. Story, K. Stubbs, C. W. Van Engelen, A. Vanderlinde, K. Vieira, J. D. Vikhlinin, A. Williamson, R. Zahn, O. Zenteno, A. Optical spectroscopy and velocity dispersions of galaxy clusters from the SPT-SZ survey |
topic_facet |
catalog galaxies: clusters: general Astronomy and Astrophysic Space and Planetary Science |
description |
We present optical spectroscopy of galaxies in clusters detected through the Sunyaev–Zel’dovich (SZ) effect with the South Pole Telescope (SPT). We report our own measurements of 61 spectroscopic cluster redshifts, and 48 velocity dispersions each calculated with more than 15 member galaxies. This catalog also includes 19 dispersions of SPT-observed clusters previously reported in the literature. The majority of the clusters in this paper are SPT-discovered; of these, most have been previously reported in other SPT cluster catalogs, and five are reported here as SPT discoveries for the first time. By performing a resampling analysis of galaxy velocities, we find that unbiased velocity dispersions can be obtained from a relatively small number of member galaxies (30), but with increased systematic scatter. We use this analysis to determine statistical confidence intervals that include the effect of membership selection. We fit scaling relations between the observed cluster velocity dispersions and mass estimates from SZ and X-ray observables. In both cases, the results are consistent with the scaling relation between velocity dispersion and mass expected from dark-matter simulations. We measure a ∼30% log-normal scatter in dispersion at fixed mass, and a ∼10% offset in the normalization of the dispersion–mass relation when compared to the expectation from simulations, which is within the expected level of systematic uncertainty. |
author2 |
Ruel, J. Bazin, G. Bayliss, M. Brodwin, M. Foley, R. J. Stalder, B. Aird, K. A. Armstrong, R. Ashby, M. L. N. Bautz, M. Benson, B. A. Bleem, L. E. Bocquet, S. Carlstrom, J. E. Chang, C. L. Chapman, S. C. Cho, H. M. Clocchiatti, A. Crawford, T. M. Crites, A. T. De Haan, T. Desai, S. Dobbs, M. A. Dudley, J. P. Forman, W. R. George, E. M. Gladders, M. D. Gonzalez, A. H. Halverson, N. W. Harrington, N. L. High, F. W. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Jones, C. Joy, M. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Liu, J. Lueker, M. Luong-Van, D. Mantz, A. Marrone, D. P. Mcdonald, M. Mcmahon, J. J. Mehl, J. Meyer, S. S. Mocanu, L. |
format |
Article in Journal/Newspaper |
author |
Ruel, J. Bazin, G. Bayliss, M. Brodwin, M. Foley, R. J. Stalder, B. Aird, K. A. Armstrong, R. Ashby, M. L. N. Bautz, M. Benson, B. A. Bleem, L. E. Bocquet, S. Carlstrom, J. E. Chang, C. L. Chapman, S. C. Cho, H. M. Clocchiatti, A. Crawford, T. M. Crites, A. T. De Haan, T. Desai, S. Dobbs, M. A. Dudley, J. P. Forman, W. R. George, E. M. Gladders, M. D. Gonzalez, A. H. Halverson, N. W. Harrington, N. L. High, F. W. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Jones, C. Joy, M. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Liu, J. Lueker, M. Luong-Van, D. Mantz, A. Marrone, D. P. McDonald, M. McMahon, J. J. Mehl, J. Meyer, S. S. Mocanu, L. Mohr, J. J. Montroy, T. E. Murray, S. S. Natoli, T. Nurgaliev, D. Padin, S. Plagge, T. Pryke, C. Reichardt, C. L. Rest, A. Ruhl, J. E. Saliwanchik, B. R. Saro, A. Sayre, J. T. Schaffer, K. K. Shaw, L. Shirokoff, E. Song, J. Šuhada, R. Spieler, H. G. Stanford, S. A. Staniszewski, Z. Starsk, A. A. Story, K. Stubbs, C. W. Van Engelen, A. Vanderlinde, K. Vieira, J. D. Vikhlinin, A. Williamson, R. Zahn, O. Zenteno, A. |
author_facet |
Ruel, J. Bazin, G. Bayliss, M. Brodwin, M. Foley, R. J. Stalder, B. Aird, K. A. Armstrong, R. Ashby, M. L. N. Bautz, M. Benson, B. A. Bleem, L. E. Bocquet, S. Carlstrom, J. E. Chang, C. L. Chapman, S. C. Cho, H. M. Clocchiatti, A. Crawford, T. M. Crites, A. T. De Haan, T. Desai, S. Dobbs, M. A. Dudley, J. P. Forman, W. R. George, E. M. Gladders, M. D. Gonzalez, A. H. Halverson, N. W. Harrington, N. L. High, F. W. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Jones, C. Joy, M. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Liu, J. Lueker, M. Luong-Van, D. Mantz, A. Marrone, D. P. McDonald, M. McMahon, J. J. Mehl, J. Meyer, S. S. Mocanu, L. Mohr, J. J. Montroy, T. E. Murray, S. S. Natoli, T. Nurgaliev, D. Padin, S. Plagge, T. Pryke, C. Reichardt, C. L. Rest, A. Ruhl, J. E. Saliwanchik, B. R. Saro, A. Sayre, J. T. Schaffer, K. K. Shaw, L. Shirokoff, E. Song, J. Šuhada, R. Spieler, H. G. Stanford, S. A. Staniszewski, Z. Starsk, A. A. Story, K. Stubbs, C. W. Van Engelen, A. Vanderlinde, K. Vieira, J. D. Vikhlinin, A. Williamson, R. Zahn, O. Zenteno, A. |
author_sort |
Ruel, J. |
title |
Optical spectroscopy and velocity dispersions of galaxy clusters from the SPT-SZ survey |
title_short |
Optical spectroscopy and velocity dispersions of galaxy clusters from the SPT-SZ survey |
title_full |
Optical spectroscopy and velocity dispersions of galaxy clusters from the SPT-SZ survey |
title_fullStr |
Optical spectroscopy and velocity dispersions of galaxy clusters from the SPT-SZ survey |
title_full_unstemmed |
Optical spectroscopy and velocity dispersions of galaxy clusters from the SPT-SZ survey |
title_sort |
optical spectroscopy and velocity dispersions of galaxy clusters from the spt-sz survey |
publishDate |
2014 |
url |
http://hdl.handle.net/11368/2963123 https://doi.org/10.1088/0004-637X/792/1/45 http://iopscience.iop.org/0004-637X/792/1/45/pdf/0004-637X_792_1_45.pdf |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000341172100045 volume:792 issue:1 firstpage:45 lastpage:- journal:THE ASTROPHYSICAL JOURNAL http://hdl.handle.net/11368/2963123 doi:10.1088/0004-637X/792/1/45 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84906273961 http://iopscience.iop.org/0004-637X/792/1/45/pdf/0004-637X_792_1_45.pdf |
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https://doi.org/10.1088/0004-637X/792/1/45 |
container_title |
The Astrophysical Journal |
container_volume |
792 |
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container_start_page |
45 |
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spelling |
ftunitriestiris:oai:arts.units.it:11368/2963123 2023-05-15T18:22:51+02:00 Optical spectroscopy and velocity dispersions of galaxy clusters from the SPT-SZ survey Ruel, J. Bazin, G. Bayliss, M. Brodwin, M. Foley, R. J. Stalder, B. Aird, K. A. Armstrong, R. Ashby, M. L. N. Bautz, M. Benson, B. A. Bleem, L. E. Bocquet, S. Carlstrom, J. E. Chang, C. L. Chapman, S. C. Cho, H. M. Clocchiatti, A. Crawford, T. M. Crites, A. T. De Haan, T. Desai, S. Dobbs, M. A. Dudley, J. P. Forman, W. R. George, E. M. Gladders, M. D. Gonzalez, A. H. Halverson, N. W. Harrington, N. L. High, F. W. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Jones, C. Joy, M. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Liu, J. Lueker, M. Luong-Van, D. Mantz, A. Marrone, D. P. McDonald, M. McMahon, J. J. Mehl, J. Meyer, S. S. Mocanu, L. Mohr, J. J. Montroy, T. E. Murray, S. S. Natoli, T. Nurgaliev, D. Padin, S. Plagge, T. Pryke, C. Reichardt, C. L. Rest, A. Ruhl, J. E. Saliwanchik, B. R. Saro, A. Sayre, J. T. Schaffer, K. K. Shaw, L. Shirokoff, E. Song, J. Šuhada, R. Spieler, H. G. Stanford, S. A. Staniszewski, Z. Starsk, A. A. Story, K. Stubbs, C. W. Van Engelen, A. Vanderlinde, K. Vieira, J. D. Vikhlinin, A. Williamson, R. Zahn, O. Zenteno, A. Ruel, J. Bazin, G. Bayliss, M. Brodwin, M. Foley, R. J. Stalder, B. Aird, K. A. Armstrong, R. Ashby, M. L. N. Bautz, M. Benson, B. A. Bleem, L. E. Bocquet, S. Carlstrom, J. E. Chang, C. L. Chapman, S. C. Cho, H. M. Clocchiatti, A. Crawford, T. M. Crites, A. T. De Haan, T. Desai, S. Dobbs, M. A. Dudley, J. P. Forman, W. R. George, E. M. Gladders, M. D. Gonzalez, A. H. Halverson, N. W. Harrington, N. L. High, F. W. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Jones, C. Joy, M. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Liu, J. Lueker, M. Luong-Van, D. Mantz, A. Marrone, D. P. Mcdonald, M. Mcmahon, J. J. Mehl, J. Meyer, S. S. Mocanu, L. 2014 http://hdl.handle.net/11368/2963123 https://doi.org/10.1088/0004-637X/792/1/45 http://iopscience.iop.org/0004-637X/792/1/45/pdf/0004-637X_792_1_45.pdf eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000341172100045 volume:792 issue:1 firstpage:45 lastpage:- journal:THE ASTROPHYSICAL JOURNAL http://hdl.handle.net/11368/2963123 doi:10.1088/0004-637X/792/1/45 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84906273961 http://iopscience.iop.org/0004-637X/792/1/45/pdf/0004-637X_792_1_45.pdf catalog galaxies: clusters: general Astronomy and Astrophysic Space and Planetary Science info:eu-repo/semantics/article 2014 ftunitriestiris https://doi.org/10.1088/0004-637X/792/1/45 2023-04-09T06:18:40Z We present optical spectroscopy of galaxies in clusters detected through the Sunyaev–Zel’dovich (SZ) effect with the South Pole Telescope (SPT). We report our own measurements of 61 spectroscopic cluster redshifts, and 48 velocity dispersions each calculated with more than 15 member galaxies. This catalog also includes 19 dispersions of SPT-observed clusters previously reported in the literature. The majority of the clusters in this paper are SPT-discovered; of these, most have been previously reported in other SPT cluster catalogs, and five are reported here as SPT discoveries for the first time. By performing a resampling analysis of galaxy velocities, we find that unbiased velocity dispersions can be obtained from a relatively small number of member galaxies (30), but with increased systematic scatter. We use this analysis to determine statistical confidence intervals that include the effect of membership selection. We fit scaling relations between the observed cluster velocity dispersions and mass estimates from SZ and X-ray observables. In both cases, the results are consistent with the scaling relation between velocity dispersion and mass expected from dark-matter simulations. We measure a ∼30% log-normal scatter in dispersion at fixed mass, and a ∼10% offset in the normalization of the dispersion–mass relation when compared to the expectation from simulations, which is within the expected level of systematic uncertainty. Article in Journal/Newspaper South pole Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) South Pole The Astrophysical Journal 792 1 45 |