X-Ray Properties of SPT-selected Galaxy Clusters at 0.2
© 2019. The American Astronomical Society. All rights reserved. We present measurements of the X-ray observables of the intracluster medium (ICM), including luminosity L X , ICM mass M ICM , emission-weighted mean temperature T X , and integrated pressure Y X , that are derived from XMM-Newton X-ray...
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ftmit:oai:dspace.mit.edu:1721.1/132335.2 2023-06-11T04:16:49+02:00 X-Ray Properties of SPT-selected Galaxy Clusters at 0.2 Bulbul, Esra Chiu, I-Non Mohr, Joseph J McDonald, Michael A. Benson, Bradford Bautz, Mark W. Bayliss, Matthew B Bleem, Lindsey Brodwin, Mark Bocquet, Sebastian Capasso, Raffaella Dietrich, Jörg P Forman, Bill Hlavacek-Larrondo, Julie Holzapfel, WL Khullar, Gourav Klein, Matthias Kraft, Ralph Miller, Eric D Reichardt, Christian Saro, Alex Sharon, Keren Stalder, Brian Schrabback, Tim Stanford, Adam MIT Kavli Institute for Astrophysics and Space Research Massachusetts Institute of Technology. Department of Physics 2020-11-04T16:48:13Z application/octet-stream https://hdl.handle.net/1721.1/132335.2 en eng American Astronomical Society 10.3847/1538-4357/AAF230 Astrophysical Journal https://hdl.handle.net/1721.1/132335.2 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. The American Astronomical Society Article http://purl.org/eprint/type/JournalArticle 2020 ftmit 2023-05-29T08:33:31Z © 2019. The American Astronomical Society. All rights reserved. We present measurements of the X-ray observables of the intracluster medium (ICM), including luminosity L X , ICM mass M ICM , emission-weighted mean temperature T X , and integrated pressure Y X , that are derived from XMM-Newton X-ray observations of a Sunyaev-Zel'dovich effect (SZE) selected sample of 59 galaxy clusters from the South Pole Telescope SPT-SZ survey that span the redshift range 0.20 < z < 1.5. We constrain the best-fit power-law scaling relations between X-ray observables, redshift, and halo mass. The halo masses are estimated based on previously published SZE observable-to-mass scaling relations, calibrated using information that includes the halo mass function. Employing SZE-based masses in this sample enables us to constrain these scaling relations for massive galaxy clusters (M 500 ≥ 3 × 10 14 M o ) to the highest redshifts where these clusters exist without concern for X-ray selection biases. We find that the mass trends are steeper than self-similarity in all cases, and with ≥2.5σ significance in the case of L X and M ICM . The redshift trends are consistent with the self-similar expectation, but the uncertainties remain large. Core-included scaling relations tend to have steeper mass trends for L X . There is no convincing evidence for a redshift-dependent mass trend in any observable. The constraints on the amplitudes of the fitted scaling relations are currently limited by the systematic uncertainties on the SZE-based halo masses, but the redshift and mass trends are limited by the X-ray sample size and the measurement uncertainties of the X-ray observables. Article in Journal/Newspaper South pole DSpace@MIT (Massachusetts Institute of Technology) South Pole |
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ftmit |
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English |
description |
© 2019. The American Astronomical Society. All rights reserved. We present measurements of the X-ray observables of the intracluster medium (ICM), including luminosity L X , ICM mass M ICM , emission-weighted mean temperature T X , and integrated pressure Y X , that are derived from XMM-Newton X-ray observations of a Sunyaev-Zel'dovich effect (SZE) selected sample of 59 galaxy clusters from the South Pole Telescope SPT-SZ survey that span the redshift range 0.20 < z < 1.5. We constrain the best-fit power-law scaling relations between X-ray observables, redshift, and halo mass. The halo masses are estimated based on previously published SZE observable-to-mass scaling relations, calibrated using information that includes the halo mass function. Employing SZE-based masses in this sample enables us to constrain these scaling relations for massive galaxy clusters (M 500 ≥ 3 × 10 14 M o ) to the highest redshifts where these clusters exist without concern for X-ray selection biases. We find that the mass trends are steeper than self-similarity in all cases, and with ≥2.5σ significance in the case of L X and M ICM . The redshift trends are consistent with the self-similar expectation, but the uncertainties remain large. Core-included scaling relations tend to have steeper mass trends for L X . There is no convincing evidence for a redshift-dependent mass trend in any observable. The constraints on the amplitudes of the fitted scaling relations are currently limited by the systematic uncertainties on the SZE-based halo masses, but the redshift and mass trends are limited by the X-ray sample size and the measurement uncertainties of the X-ray observables. |
author2 |
MIT Kavli Institute for Astrophysics and Space Research Massachusetts Institute of Technology. Department of Physics |
format |
Article in Journal/Newspaper |
author |
Bulbul, Esra Chiu, I-Non Mohr, Joseph J McDonald, Michael A. Benson, Bradford Bautz, Mark W. Bayliss, Matthew B Bleem, Lindsey Brodwin, Mark Bocquet, Sebastian Capasso, Raffaella Dietrich, Jörg P Forman, Bill Hlavacek-Larrondo, Julie Holzapfel, WL Khullar, Gourav Klein, Matthias Kraft, Ralph Miller, Eric D Reichardt, Christian Saro, Alex Sharon, Keren Stalder, Brian Schrabback, Tim Stanford, Adam |
spellingShingle |
Bulbul, Esra Chiu, I-Non Mohr, Joseph J McDonald, Michael A. Benson, Bradford Bautz, Mark W. Bayliss, Matthew B Bleem, Lindsey Brodwin, Mark Bocquet, Sebastian Capasso, Raffaella Dietrich, Jörg P Forman, Bill Hlavacek-Larrondo, Julie Holzapfel, WL Khullar, Gourav Klein, Matthias Kraft, Ralph Miller, Eric D Reichardt, Christian Saro, Alex Sharon, Keren Stalder, Brian Schrabback, Tim Stanford, Adam X-Ray Properties of SPT-selected Galaxy Clusters at 0.2 |
author_facet |
Bulbul, Esra Chiu, I-Non Mohr, Joseph J McDonald, Michael A. Benson, Bradford Bautz, Mark W. Bayliss, Matthew B Bleem, Lindsey Brodwin, Mark Bocquet, Sebastian Capasso, Raffaella Dietrich, Jörg P Forman, Bill Hlavacek-Larrondo, Julie Holzapfel, WL Khullar, Gourav Klein, Matthias Kraft, Ralph Miller, Eric D Reichardt, Christian Saro, Alex Sharon, Keren Stalder, Brian Schrabback, Tim Stanford, Adam |
author_sort |
Bulbul, Esra |
title |
X-Ray Properties of SPT-selected Galaxy Clusters at 0.2 |
title_short |
X-Ray Properties of SPT-selected Galaxy Clusters at 0.2 |
title_full |
X-Ray Properties of SPT-selected Galaxy Clusters at 0.2 |
title_fullStr |
X-Ray Properties of SPT-selected Galaxy Clusters at 0.2 |
title_full_unstemmed |
X-Ray Properties of SPT-selected Galaxy Clusters at 0.2 |
title_sort |
x-ray properties of spt-selected galaxy clusters at 0.2 |
publisher |
American Astronomical Society |
publishDate |
2020 |
url |
https://hdl.handle.net/1721.1/132335.2 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
The American Astronomical Society |
op_relation |
10.3847/1538-4357/AAF230 Astrophysical Journal https://hdl.handle.net/1721.1/132335.2 |
op_rights |
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. |
_version_ |
1768375444737884160 |