HIGH-REDSHIFT COOL-CORE GALAXY CLUSTERS DETECTED VIA THE SUNYAEV-ZEL'DOVICH EFFECT IN THE SOUTH POLE TELESCOPE SURVEY
We report the first investigation of cool-core properties of galaxy clusters selected via their Sunyaev-Zel'dovich (SZ) effect. We use 13 galaxy clusters uniformly selected from 178 deg super(2) observed with the South Pole Telescope (SPT) and followed up by the Chandra X-ray Observatory. They...
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| Veröffentlicht in: | The Astrophysical journal 2012-12, Vol.761 (2), p.1-9 |
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| creator | SEMLER, D. R SUHADA, R BRODWIN, M CARLSTROM, J. E CHANG, C. L CHO, H. M CLOCCHIATTI, A CRAWFORD, T. M CRITES, A. T DE HAAN, T DESAI, S DOBBS, M. A AIRD, K. A DUDLEY, J. P FOLEY, R. J GEORGE, E. M GLADDERS, M. D GONZALEZ, A. H HALVERSON, N. W HARRINGTON, N. L HIGH, F. W HOLDER, G. P HOLZAPFEL, W. L ASHBY, M. L. N HOOVER, S HRUBES, J. D JONES, C JOY, M KEISLER, R KNOX, L LEE, A. T LEITCH, E. M LIU, J LUEKER, M BAUTZ, 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 BAYLISS, M MURRAY, S. S NATOLI, T PADIN, S PLAGGE, T PRYKE, C REICHARDT, C. L REST, A RUEL, J RUHL, J. E SALIWANCHIK, B. R BAZIN, G BOCQUET, S BENSON, B. A BLEEM, L. E |
| description | We report the first investigation of cool-core properties of galaxy clusters selected via their Sunyaev-Zel'dovich (SZ) effect. We use 13 galaxy clusters uniformly selected from 178 deg super(2) observed with the South Pole Telescope (SPT) and followed up by the Chandra X-ray Observatory. They form an approximately mass-limited sample (>3 x 10 super(14) M sub([middot in circle]) h super(-1) sub(70)) spanning redshifts 0.3 < z < 1.1. Using previously published X-ray-selected cluster samples, we compare two proxies of cool-core strength: surface brightness concentration (c sub(SB)) and cuspiness ([alpha]). We find that c sub(SB) is better constrained. We measure c sub(SB) for the SPT sample and find several new z > 0.5 cool-core clusters, including two strong cool cores. This rules out the hypothesis that there are no z > 0.5 clusters that qualify as strong cool cores at the 5.4[sigma] level. The fraction of strong cool-core clusters in the SPT sample in this redshift regime is between 7% and 56% (95% confidence). Although the SPT selection function is significantly different from the X-ray samples, the high-z c sub(SB) distribution for the SPT sample is statistically consistent with that of X-ray-selected samples at both low and high redshifts. The cool-core strength is inversely correlated with the offset between the brightest cluster galaxy and the X-ray centroid, providing evidence that the dynamical state affects the cool-core strength of the cluster. Larger SZ-selected samples will be crucial in understanding the evolution of cluster cool cores over cosmic time. |
| doi_str_mv | 10.1088/0004-637x/761/2/183 |
| format | Article |
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R ; SUHADA, R ; BRODWIN, M ; CARLSTROM, J. E ; CHANG, C. L ; CHO, H. M ; CLOCCHIATTI, A ; CRAWFORD, T. M ; CRITES, A. T ; DE HAAN, T ; DESAI, S ; DOBBS, M. A ; AIRD, K. A ; DUDLEY, J. P ; FOLEY, R. J ; GEORGE, E. M ; GLADDERS, M. D ; GONZALEZ, A. H ; HALVERSON, N. W ; HARRINGTON, N. L ; HIGH, F. W ; HOLDER, G. P ; HOLZAPFEL, W. L ; ASHBY, M. L. N ; HOOVER, S ; HRUBES, J. D ; JONES, C ; JOY, M ; KEISLER, R ; KNOX, L ; LEE, A. T ; LEITCH, E. M ; LIU, J ; LUEKER, M ; BAUTZ, 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 ; BAYLISS, M ; MURRAY, S. S ; NATOLI, T ; PADIN, S ; PLAGGE, T ; PRYKE, C ; REICHARDT, C. L ; REST, A ; RUEL, J ; RUHL, J. E ; SALIWANCHIK, B. R ; BAZIN, G ; BOCQUET, S ; BENSON, B. A ; BLEEM, L. E</creator><creatorcontrib>SEMLER, D. R ; SUHADA, R ; BRODWIN, M ; CARLSTROM, J. E ; CHANG, C. L ; CHO, H. M ; CLOCCHIATTI, A ; CRAWFORD, T. M ; CRITES, A. T ; DE HAAN, T ; DESAI, S ; DOBBS, M. A ; AIRD, K. A ; DUDLEY, J. P ; FOLEY, R. J ; GEORGE, E. M ; GLADDERS, M. D ; GONZALEZ, A. H ; HALVERSON, N. W ; HARRINGTON, N. L ; HIGH, F. W ; HOLDER, G. P ; HOLZAPFEL, W. L ; ASHBY, M. L. N ; HOOVER, S ; HRUBES, J. D ; JONES, C ; JOY, M ; KEISLER, R ; KNOX, L ; LEE, A. T ; LEITCH, E. M ; LIU, J ; LUEKER, M ; BAUTZ, 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 ; BAYLISS, M ; MURRAY, S. S ; NATOLI, T ; PADIN, S ; PLAGGE, T ; PRYKE, C ; REICHARDT, C. L ; REST, A ; RUEL, J ; RUHL, J. E ; SALIWANCHIK, B. R ; BAZIN, G ; BOCQUET, S ; BENSON, B. A ; BLEEM, L. E</creatorcontrib><description>We report the first investigation of cool-core properties of galaxy clusters selected via their Sunyaev-Zel'dovich (SZ) effect. We use 13 galaxy clusters uniformly selected from 178 deg super(2) observed with the South Pole Telescope (SPT) and followed up by the Chandra X-ray Observatory. They form an approximately mass-limited sample (>3 x 10 super(14) M sub([middot in circle]) h super(-1) sub(70)) spanning redshifts 0.3 < z < 1.1. Using previously published X-ray-selected cluster samples, we compare two proxies of cool-core strength: surface brightness concentration (c sub(SB)) and cuspiness ([alpha]). We find that c sub(SB) is better constrained. We measure c sub(SB) for the SPT sample and find several new z > 0.5 cool-core clusters, including two strong cool cores. This rules out the hypothesis that there are no z > 0.5 clusters that qualify as strong cool cores at the 5.4[sigma] level. The fraction of strong cool-core clusters in the SPT sample in this redshift regime is between 7% and 56% (95% confidence). Although the SPT selection function is significantly different from the X-ray samples, the high-z c sub(SB) distribution for the SPT sample is statistically consistent with that of X-ray-selected samples at both low and high redshifts. The cool-core strength is inversely correlated with the offset between the brightest cluster galaxy and the X-ray centroid, providing evidence that the dynamical state affects the cool-core strength of the cluster. Larger SZ-selected samples will be crucial in understanding the evolution of cluster cool cores over cosmic time.</description><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.1088/0004-637x/761/2/183</identifier><identifier>CODEN: ASJOAB</identifier><language>eng</language><publisher>Bristol: IOP</publisher><subject>Astronomy ; ASTROPHYSICS ; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ; BRIGHTNESS ; Clusters ; COMPARATIVE EVALUATIONS ; Earth, ocean, space ; Exact sciences and technology ; Galactic clusters ; GALAXY CLUSTERS ; GAMMA ASTRONOMY ; MASS ; RED SHIFT ; Samples ; Statistical analysis ; Statistical methods ; Strength ; TELESCOPE COUNTERS ; X RADIATION ; X-RAY DETECTION ; X-RAY GALAXIES ; X-rays</subject><ispartof>The Astrophysical journal, 2012-12, Vol.761 (2), p.1-9</ispartof><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c484t-3a21a5d04ed7d070d8a35fa2ee2e0acc492966ffd26827f468392769eaadf5513</citedby><cites>FETCH-LOGICAL-c484t-3a21a5d04ed7d070d8a35fa2ee2e0acc492966ffd26827f468392769eaadf5513</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26752295$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/22139926$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>SEMLER, D. 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We use 13 galaxy clusters uniformly selected from 178 deg super(2) observed with the South Pole Telescope (SPT) and followed up by the Chandra X-ray Observatory. They form an approximately mass-limited sample (>3 x 10 super(14) M sub([middot in circle]) h super(-1) sub(70)) spanning redshifts 0.3 < z < 1.1. Using previously published X-ray-selected cluster samples, we compare two proxies of cool-core strength: surface brightness concentration (c sub(SB)) and cuspiness ([alpha]). We find that c sub(SB) is better constrained. We measure c sub(SB) for the SPT sample and find several new z > 0.5 cool-core clusters, including two strong cool cores. This rules out the hypothesis that there are no z > 0.5 clusters that qualify as strong cool cores at the 5.4[sigma] level. The fraction of strong cool-core clusters in the SPT sample in this redshift regime is between 7% and 56% (95% confidence). Although the SPT selection function is significantly different from the X-ray samples, the high-z c sub(SB) distribution for the SPT sample is statistically consistent with that of X-ray-selected samples at both low and high redshifts. The cool-core strength is inversely correlated with the offset between the brightest cluster galaxy and the X-ray centroid, providing evidence that the dynamical state affects the cool-core strength of the cluster. 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E</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>SEMLER, D. R</au><au>SUHADA, R</au><au>BRODWIN, M</au><au>CARLSTROM, J. E</au><au>CHANG, C. L</au><au>CHO, H. M</au><au>CLOCCHIATTI, A</au><au>CRAWFORD, T. M</au><au>CRITES, A. T</au><au>DE HAAN, T</au><au>DESAI, S</au><au>DOBBS, M. A</au><au>AIRD, K. A</au><au>DUDLEY, J. P</au><au>FOLEY, R. J</au><au>GEORGE, E. M</au><au>GLADDERS, M. D</au><au>GONZALEZ, A. H</au><au>HALVERSON, N. W</au><au>HARRINGTON, N. L</au><au>HIGH, F. W</au><au>HOLDER, G. P</au><au>HOLZAPFEL, W. L</au><au>ASHBY, M. L. N</au><au>HOOVER, S</au><au>HRUBES, J. D</au><au>JONES, C</au><au>JOY, M</au><au>KEISLER, R</au><au>KNOX, L</au><au>LEE, A. T</au><au>LEITCH, E. M</au><au>LIU, J</au><au>LUEKER, M</au><au>BAUTZ, M</au><au>LUONG-VAN, D</au><au>MANTZ, A</au><au>MARRONE, D. P</au><au>MCDONALD, M</au><au>MCMAHON, J. J</au><au>MEHL, J</au><au>MEYER, S. S</au><au>MOCANU, L</au><au>MOHR, J. J</au><au>MONTROY, T. E</au><au>BAYLISS, M</au><au>MURRAY, S. S</au><au>NATOLI, T</au><au>PADIN, S</au><au>PLAGGE, T</au><au>PRYKE, C</au><au>REICHARDT, C. L</au><au>REST, A</au><au>RUEL, J</au><au>RUHL, J. E</au><au>SALIWANCHIK, B. R</au><au>BAZIN, G</au><au>BOCQUET, S</au><au>BENSON, B. A</au><au>BLEEM, L. E</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>HIGH-REDSHIFT COOL-CORE GALAXY CLUSTERS DETECTED VIA THE SUNYAEV-ZEL'DOVICH EFFECT IN THE SOUTH POLE TELESCOPE SURVEY</atitle><jtitle>The Astrophysical journal</jtitle><date>2012-12-20</date><risdate>2012</risdate><volume>761</volume><issue>2</issue><spage>1</spage><epage>9</epage><pages>1-9</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><coden>ASJOAB</coden><abstract>We report the first investigation of cool-core properties of galaxy clusters selected via their Sunyaev-Zel'dovich (SZ) effect. We use 13 galaxy clusters uniformly selected from 178 deg super(2) observed with the South Pole Telescope (SPT) and followed up by the Chandra X-ray Observatory. They form an approximately mass-limited sample (>3 x 10 super(14) M sub([middot in circle]) h super(-1) sub(70)) spanning redshifts 0.3 < z < 1.1. Using previously published X-ray-selected cluster samples, we compare two proxies of cool-core strength: surface brightness concentration (c sub(SB)) and cuspiness ([alpha]). We find that c sub(SB) is better constrained. We measure c sub(SB) for the SPT sample and find several new z > 0.5 cool-core clusters, including two strong cool cores. This rules out the hypothesis that there are no z > 0.5 clusters that qualify as strong cool cores at the 5.4[sigma] level. The fraction of strong cool-core clusters in the SPT sample in this redshift regime is between 7% and 56% (95% confidence). Although the SPT selection function is significantly different from the X-ray samples, the high-z c sub(SB) distribution for the SPT sample is statistically consistent with that of X-ray-selected samples at both low and high redshifts. The cool-core strength is inversely correlated with the offset between the brightest cluster galaxy and the X-ray centroid, providing evidence that the dynamical state affects the cool-core strength of the cluster. Larger SZ-selected samples will be crucial in understanding the evolution of cluster cool cores over cosmic time.</abstract><cop>Bristol</cop><pub>IOP</pub><doi>10.1088/0004-637x/761/2/183</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0004-637X |
| ispartof | The Astrophysical journal, 2012-12, Vol.761 (2), p.1-9 |
| issn | 0004-637X 1538-4357 |
| language | eng |
| recordid | cdi_osti_scitechconnect_22139926 |
| source | IOP Publishing Free Content; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Astronomy ASTROPHYSICS ASTROPHYSICS, COSMOLOGY AND ASTRONOMY BRIGHTNESS Clusters COMPARATIVE EVALUATIONS Earth, ocean, space Exact sciences and technology Galactic clusters GALAXY CLUSTERS GAMMA ASTRONOMY MASS RED SHIFT Samples Statistical analysis Statistical methods Strength TELESCOPE COUNTERS X RADIATION X-RAY DETECTION X-RAY GALAXIES X-rays |
| title | HIGH-REDSHIFT COOL-CORE GALAXY CLUSTERS DETECTED VIA THE SUNYAEV-ZEL'DOVICH EFFECT IN THE SOUTH POLE TELESCOPE SURVEY |
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