THE EVOLUTION of the INTRACLUSTER MEDIUM METALLICITY in SUNYAEV ZEL'DOVICH-SELECTED GALAXY CLUSTERS at 0 > z > 1.5
We present the results of an X-ray spectral analysis of 153 galaxy clusters observed with the Chandra, XMM-Newton, and Suzaku space telescopes. These clusters, which span 0 < z < 1.5, were drawn from a larger, mass-selected sample of galaxy clusters discovered in the 2500 square degree South P...
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Online Access: | http://hdl.handle.net/11368/2962578 https://doi.org/10.3847/0004-637X/826/2/124 http://iopscience.iop.org/article/10.3847/0004-637X/826/2/124/pdf |
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ftunitriestiris:oai:arts.units.it:11368/2962578 2023-05-15T18:23:22+02:00 THE EVOLUTION of the INTRACLUSTER MEDIUM METALLICITY in SUNYAEV ZEL'DOVICH-SELECTED GALAXY CLUSTERS at 0 > z > 1.5 McDonald, M. Bulbul, E. Haan, T. De Miller, E. D. Benson, B. A. Bleem, L. E. Brodwin, M. Carlstrom, J. E. Chiu, I. Forman, W. R. Hlavacek-Larrondo, J. Garmire, G. P. Gupta, N. Mohr, J. J. Reichardt, C. L. Saro, A. Stalder, B. Stark, A. A. Vieira, J. D. Mcdonald, M. Bulbul, E. Haan, T. De Miller, E. D. Benson, B. A. Bleem, L. E. Brodwin, M. Carlstrom, J. E. Chiu, I. Forman, W. R. Hlavacek-Larrondo, J. Garmire, G. P. Gupta, N. Mohr, J. J. Reichardt, C. L. Saro, A. Stalder, B. Stark, A. A. Vieira, J. D. 2016 http://hdl.handle.net/11368/2962578 https://doi.org/10.3847/0004-637X/826/2/124 http://iopscience.iop.org/article/10.3847/0004-637X/826/2/124/pdf eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000381977900024 volume:826 issue:2 firstpage:124 lastpage:- numberofpages:11 journal:THE ASTROPHYSICAL JOURNAL http://hdl.handle.net/11368/2962578 doi:10.3847/0004-637X/826/2/124 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84982244586 http://iopscience.iop.org/article/10.3847/0004-637X/826/2/124/pdf info:eu-repo/semantics/closedAccess galaxies: clusters: general galaxies: clusters: intracluster medium X-rays: galaxies: cluster Astronomy and Astrophysic Space and Planetary Science info:eu-repo/semantics/article 2016 ftunitriestiris https://doi.org/10.3847/0004-637X/826/2/124 2023-04-09T06:16:39Z We present the results of an X-ray spectral analysis of 153 galaxy clusters observed with the Chandra, XMM-Newton, and Suzaku space telescopes. These clusters, which span 0 < z < 1.5, were drawn from a larger, mass-selected sample of galaxy clusters discovered in the 2500 square degree South Pole Telescope Sunyaev Zel’dovich (SPT-SZ) survey. With a total combined exposure time of 9.1 Ms, these data yield the strongest constraints to date on the evolution of the metal content of the intracluster medium (ICM). We find no evidence for strong evolution in the global (r < R 500) ICM metallicity (dZ/dz = -0.06 ± 0.04 Z ☉), with a mean value at z = 0.6 of < Z> =0.23+/- 0.01 Z ☉ and a scatter of σ Z = 0.08 ± 0.01 Z ☉. These results imply that the emission-weighted metallicity has not changed by more than 40% since z = 1 (at 95% confidence), consistent with the picture of an early (z > 1) enrichment. We find, in agreement with previous works, a significantly higher mean value for the metallicity in the centers of cool core clusters versus non-cool core clusters. We find weak evidence for evolution in the central metallicity of cool core clusters (dZ/dz = -0.21 ± 0.11 Z ☉), which is sufficient to account for this enhanced central metallicity over the past ∼10 Gyr. We find no evidence for metallicity evolution outside of the core (dZ/dz = -0.03 ± 0.06 Z ☉), and no significant difference in the core-excised metallicity between cool core and non-cool core clusters. This suggests that strong radio-mode active galactic nucleus feedback does not significantly alter the distribution of metals at r> 0.15{R}500. Given the limitations of current-generation X-ray telescopes in constraining the ICM metallicity at z > 1, significant improvements on this work will likely require next-generation X-ray missions. Article in Journal/Newspaper South pole Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) South Pole The Astrophysical Journal 826 2 124 |
institution |
Open Polar |
collection |
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) |
op_collection_id |
ftunitriestiris |
language |
English |
topic |
galaxies: clusters: general galaxies: clusters: intracluster medium X-rays: galaxies: cluster Astronomy and Astrophysic Space and Planetary Science |
spellingShingle |
galaxies: clusters: general galaxies: clusters: intracluster medium X-rays: galaxies: cluster Astronomy and Astrophysic Space and Planetary Science McDonald, M. Bulbul, E. Haan, T. De Miller, E. D. Benson, B. A. Bleem, L. E. Brodwin, M. Carlstrom, J. E. Chiu, I. Forman, W. R. Hlavacek-Larrondo, J. Garmire, G. P. Gupta, N. Mohr, J. J. Reichardt, C. L. Saro, A. Stalder, B. Stark, A. A. Vieira, J. D. THE EVOLUTION of the INTRACLUSTER MEDIUM METALLICITY in SUNYAEV ZEL'DOVICH-SELECTED GALAXY CLUSTERS at 0 > z > 1.5 |
topic_facet |
galaxies: clusters: general galaxies: clusters: intracluster medium X-rays: galaxies: cluster Astronomy and Astrophysic Space and Planetary Science |
description |
We present the results of an X-ray spectral analysis of 153 galaxy clusters observed with the Chandra, XMM-Newton, and Suzaku space telescopes. These clusters, which span 0 < z < 1.5, were drawn from a larger, mass-selected sample of galaxy clusters discovered in the 2500 square degree South Pole Telescope Sunyaev Zel’dovich (SPT-SZ) survey. With a total combined exposure time of 9.1 Ms, these data yield the strongest constraints to date on the evolution of the metal content of the intracluster medium (ICM). We find no evidence for strong evolution in the global (r < R 500) ICM metallicity (dZ/dz = -0.06 ± 0.04 Z ☉), with a mean value at z = 0.6 of < Z> =0.23+/- 0.01 Z ☉ and a scatter of σ Z = 0.08 ± 0.01 Z ☉. These results imply that the emission-weighted metallicity has not changed by more than 40% since z = 1 (at 95% confidence), consistent with the picture of an early (z > 1) enrichment. We find, in agreement with previous works, a significantly higher mean value for the metallicity in the centers of cool core clusters versus non-cool core clusters. We find weak evidence for evolution in the central metallicity of cool core clusters (dZ/dz = -0.21 ± 0.11 Z ☉), which is sufficient to account for this enhanced central metallicity over the past ∼10 Gyr. We find no evidence for metallicity evolution outside of the core (dZ/dz = -0.03 ± 0.06 Z ☉), and no significant difference in the core-excised metallicity between cool core and non-cool core clusters. This suggests that strong radio-mode active galactic nucleus feedback does not significantly alter the distribution of metals at r> 0.15{R}500. Given the limitations of current-generation X-ray telescopes in constraining the ICM metallicity at z > 1, significant improvements on this work will likely require next-generation X-ray missions. |
author2 |
Mcdonald, M. Bulbul, E. Haan, T. De Miller, E. D. Benson, B. A. Bleem, L. E. Brodwin, M. Carlstrom, J. E. Chiu, I. Forman, W. R. Hlavacek-Larrondo, J. Garmire, G. P. Gupta, N. Mohr, J. J. Reichardt, C. L. Saro, A. Stalder, B. Stark, A. A. Vieira, J. D. |
format |
Article in Journal/Newspaper |
author |
McDonald, M. Bulbul, E. Haan, T. De Miller, E. D. Benson, B. A. Bleem, L. E. Brodwin, M. Carlstrom, J. E. Chiu, I. Forman, W. R. Hlavacek-Larrondo, J. Garmire, G. P. Gupta, N. Mohr, J. J. Reichardt, C. L. Saro, A. Stalder, B. Stark, A. A. Vieira, J. D. |
author_facet |
McDonald, M. Bulbul, E. Haan, T. De Miller, E. D. Benson, B. A. Bleem, L. E. Brodwin, M. Carlstrom, J. E. Chiu, I. Forman, W. R. Hlavacek-Larrondo, J. Garmire, G. P. Gupta, N. Mohr, J. J. Reichardt, C. L. Saro, A. Stalder, B. Stark, A. A. Vieira, J. D. |
author_sort |
McDonald, M. |
title |
THE EVOLUTION of the INTRACLUSTER MEDIUM METALLICITY in SUNYAEV ZEL'DOVICH-SELECTED GALAXY CLUSTERS at 0 > z > 1.5 |
title_short |
THE EVOLUTION of the INTRACLUSTER MEDIUM METALLICITY in SUNYAEV ZEL'DOVICH-SELECTED GALAXY CLUSTERS at 0 > z > 1.5 |
title_full |
THE EVOLUTION of the INTRACLUSTER MEDIUM METALLICITY in SUNYAEV ZEL'DOVICH-SELECTED GALAXY CLUSTERS at 0 > z > 1.5 |
title_fullStr |
THE EVOLUTION of the INTRACLUSTER MEDIUM METALLICITY in SUNYAEV ZEL'DOVICH-SELECTED GALAXY CLUSTERS at 0 > z > 1.5 |
title_full_unstemmed |
THE EVOLUTION of the INTRACLUSTER MEDIUM METALLICITY in SUNYAEV ZEL'DOVICH-SELECTED GALAXY CLUSTERS at 0 > z > 1.5 |
title_sort |
evolution of the intracluster medium metallicity in sunyaev zel'dovich-selected galaxy clusters at 0 > z > 1.5 |
publishDate |
2016 |
url |
http://hdl.handle.net/11368/2962578 https://doi.org/10.3847/0004-637X/826/2/124 http://iopscience.iop.org/article/10.3847/0004-637X/826/2/124/pdf |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000381977900024 volume:826 issue:2 firstpage:124 lastpage:- numberofpages:11 journal:THE ASTROPHYSICAL JOURNAL http://hdl.handle.net/11368/2962578 doi:10.3847/0004-637X/826/2/124 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84982244586 http://iopscience.iop.org/article/10.3847/0004-637X/826/2/124/pdf |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.3847/0004-637X/826/2/124 |
container_title |
The Astrophysical Journal |
container_volume |
826 |
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2 |
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124 |
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1766202941757194240 |