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 Sou...
| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
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American Astronomical Society
2018
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| Online Access: | http://hdl.handle.net/1721.1/116266 https://orcid.org/0000-0001-5226-8349 |
| _version_ | 1811080445271474176 |
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| author | 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, Michael A. Bulbul, Gul E |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics 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, Michael A. Bulbul, Gul E |
| author_sort | Haan, T. de |
| collection | MIT |
| 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[subscript 500]) ICM metallicity (dZ/dz = -0.06 ± 0.04 Z[subscript ⊙]), with a mean value at z = 0.6 of (Z) = 0.23 ± 0.01 Z ⊙ and a scatter of σ[subscript Z] = 0.08 ± 0.01 Z[subscript ⊙]. 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 . 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. Key words: galaxies: clusters: general – galaxies: clusters: intracluster medium – X-rays: galaxies: clusters |
| first_indexed | 2024-09-23T11:31:29Z |
| format | Article |
| id | mit-1721.1/116266 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T11:31:29Z |
| publishDate | 2018 |
| publisher | American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/1162662022-09-27T20:07:35Z THE EVOLUTION OF THE INTRACLUSTER MEDIUM METALLICITY IN SUNYAEV ZEL’DOVICH-SELECTED GALAXY CLUSTERS AT 0 < Z < 1.5 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, Michael A. Bulbul, Gul E Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research McDonald, Michael A. Bulbul, Gul E 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[subscript 500]) ICM metallicity (dZ/dz = -0.06 ± 0.04 Z[subscript ⊙]), with a mean value at z = 0.6 of (Z) = 0.23 ± 0.01 Z ⊙ and a scatter of σ[subscript Z] = 0.08 ± 0.01 Z[subscript ⊙]. 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 . 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. Key words: galaxies: clusters: general – galaxies: clusters: intracluster medium – X-rays: galaxies: clusters United States. National Aeronautics and Space Administration (Contract GO4- 15122A) United States. National Aeronautics and Space Administration (Contract GO5-16141X) United States. National Aeronautics and Space Administration (Hubble Fellowship Grant HST-HF51308.01-A) United States. National Aeronautics and Space Administration (Contract NNX123AE77G) 2018-06-12T17:09:02Z 2018-06-12T17:09:02Z 2017-07 2018-02-16T14:35:04Z Article http://purl.org/eprint/type/JournalArticle 1538-4357 http://hdl.handle.net/1721.1/116266 McDonald, M., et al. “THE EVOLUTION OF THE INTRACLUSTER MEDIUM METALLICITY IN SUNYAEV ZEL’DOVICH-SELECTED GALAXY CLUSTERS AT 0 < z < 1.5.” The Astrophysical Journal, vol. 826, no. 2, July 2016, p. 124. © 2016. The American Astronomical Society https://orcid.org/0000-0001-5226-8349 http://dx.doi.org/10.3847/0004-637X/826/2/124 The Astrophysical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Astronomical Society |
| spellingShingle | 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, Michael A. Bulbul, Gul E THE EVOLUTION OF THE INTRACLUSTER MEDIUM METALLICITY IN SUNYAEV ZEL’DOVICH-SELECTED GALAXY CLUSTERS AT 0 < Z < 1.5 |
| title | 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_short | 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 |
| url | http://hdl.handle.net/1721.1/116266 https://orcid.org/0000-0001-5226-8349 |
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