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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ftdatacite:10.48550/arxiv.1603.03035 2023-05-15T18:23:17+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. de Haan, T. 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 https://dx.doi.org/10.48550/arxiv.1603.03035 https://arxiv.org/abs/1603.03035 unknown arXiv https://dx.doi.org/10.3847/0004-637x/826/2/124 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Cosmology and Nongalactic Astrophysics astro-ph.CO Astrophysics of Galaxies astro-ph.GA FOS Physical sciences article-journal Article ScholarlyArticle Text 2016 ftdatacite https://doi.org/10.48550/arxiv.1603.03035 https://doi.org/10.3847/0004-637x/826/2/124 2022-04-01T11:41:48Z 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 = 0.23 +/- 0.01 Zsun and a scatter of 0.08 +/- 0.01 Zsun. These results imply that >60% of the metals in the ICM were already in place at 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 Zsun), 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 Zsun), and no significant difference in the core-excised metallicity between cool core and non-cool core clusters. This suggests that strong radio-mode AGN feedback does not significantly alter the distribution of metals at r>0.15R500. 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. : 11 pages, 8 figures, 2 tables. Submitted to ApJ. Comments welcome! Text South pole DataCite Metadata Store (German National Library of Science and Technology) South Pole |
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DataCite Metadata Store (German National Library of Science and Technology) |
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unknown |
topic |
Cosmology and Nongalactic Astrophysics astro-ph.CO Astrophysics of Galaxies astro-ph.GA FOS Physical sciences |
spellingShingle |
Cosmology and Nongalactic Astrophysics astro-ph.CO Astrophysics of Galaxies astro-ph.GA FOS Physical sciences McDonald, M. Bulbul, E. de Haan, T. 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 |
Cosmology and Nongalactic Astrophysics astro-ph.CO Astrophysics of Galaxies astro-ph.GA FOS Physical sciences |
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 = 0.23 +/- 0.01 Zsun and a scatter of 0.08 +/- 0.01 Zsun. These results imply that >60% of the metals in the ICM were already in place at 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 Zsun), 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 Zsun), and no significant difference in the core-excised metallicity between cool core and non-cool core clusters. This suggests that strong radio-mode AGN feedback does not significantly alter the distribution of metals at r>0.15R500. 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. : 11 pages, 8 figures, 2 tables. Submitted to ApJ. Comments welcome! |
format |
Text |
author |
McDonald, M. Bulbul, E. de Haan, T. 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. de Haan, T. 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 |
publisher |
arXiv |
publishDate |
2016 |
url |
https://dx.doi.org/10.48550/arxiv.1603.03035 https://arxiv.org/abs/1603.03035 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://dx.doi.org/10.3847/0004-637x/826/2/124 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1603.03035 https://doi.org/10.3847/0004-637x/826/2/124 |
_version_ |
1766202845310222336 |