The redshift evolution of the mean temperature, pressure, and entropy profiles in 80 spt-selected galaxy clusters
We present the results of an X-ray analysis of 80 galaxy clusters selected in the 2500 deg2 South Pole Telescope survey and observed with the Chandra X-ray Observatory. We divide the full sample into subsamples of ∼20 clusters based on redshift and central density, performing a joint X-ray spectral...
Published in: | The Astrophysical Journal |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2014
|
Subjects: | |
Online Access: | http://hdl.handle.net/11368/2963129 https://doi.org/10.1088/0004-637X/794/1/67 http://iopscience.iop.org/0004-637X/794/1/67/pdf/0004-637X_794_1_67.pdf |
id |
ftunitriestiris:oai:arts.units.it:11368/2963129 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) |
op_collection_id |
ftunitriestiris |
language |
English |
topic |
early universe galaxies: clusters: general galaxies: clusters: intracluster medium X-rays: galaxies:cluster Astronomy and Astrophysic Space and Planetary Science |
spellingShingle |
early universe galaxies: clusters: general galaxies: clusters: intracluster medium X-rays: galaxies:cluster Astronomy and Astrophysic Space and Planetary Science McDonald, M. Benson, B. A. Vikhlinin, A. Aird, K. A. Allen, S. W. Bautz, M. Bayliss, M. Bleem, L. E. Bocquet, S. Brodwin, M. Carlstrom, J. E. Chang, C. L. Cho, H. M. Clocchiatti, A. Crawford, T. M. Crites, A. T. De Haan, T. Dobbs, M. A. Foley, R. J. Forman, W. R. George, E. M. Gladders, M. D. Gonzalez, A. H. Halverson, N. W. Hlavacek-Larrondo, J. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Jones, C. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Liu, J. Lueker, M. Luong-Van, D. Mantz, A. Marrone, D. P. McMahon, J. J. Meyer, S. S. Miller, E. D. Mocanu, L. Mohr, J. J. Murray, S. S. Padin, S. Pryke, C. Reichardt, C. L. Rest, A. Ruhl, J. E. Saliwanchik, B. R. Saro, A. Sayre, J. T. Schaffer, K. K. Shirokoff, E. Spieler, H. G. Stalder, B. Stanford, S. A. Staniszewski, Z. Stark, A. A. Story, K. T. Stubbs, C. W. Vanderlinde, K. Vieira, J. D. Williamson, R. Zahn, O. Zenteno, A. The redshift evolution of the mean temperature, pressure, and entropy profiles in 80 spt-selected galaxy clusters |
topic_facet |
early universe 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 analysis of 80 galaxy clusters selected in the 2500 deg2 South Pole Telescope survey and observed with the Chandra X-ray Observatory. We divide the full sample into subsamples of ∼20 clusters based on redshift and central density, performing a joint X-ray spectral fit to all clusters in a subsample simultaneously, assuming self-similarity of the temperature profile. This approach allows us to constrain the shape of the temperature profile over 0 < 1.5R500, which would be impossible on a per-cluster basis, since the observations of individual clusters have, on average, 2000 X-ray counts. The results presented here represent the first constraints on the evolution of the average temperature profile from z = 0 to z = 1.2. We find that high-z (0.6 < 1.2) clusters are slightly (∼30%) cooler both in the inner (r < 0.1R500) and outer (r>R500) regions than their low-z (0.3 < 0.6) counterparts. Combining the average temperature profile with measured gas density profiles from our earlier work, we infer the average pressure and entropy profiles for each subsample. Confirming earlier results from this data set, we find an absence of strong cool cores at high z, manifested in this analysis as a significantly lower observed pressure in the central 0.1R500 of the high-z cool-core subset of clusters compared to the low-z cool-core subset. Overall, our observed pressure profiles agree well with earlier lower-redshift measurements, suggesting minimal redshift evolution in the pressure profile outside of the core. We find no measurable redshift evolution in the entropy profile at r 0.7R500—this may reflect a long-standing balance between cooling and feedback over long timescales and large physical scales. We observe a slight flattening of the entropy profile at r R500 in our high-z subsample. This flattening is consistent with a temperature bias due to the enhanced (∼3×) rate at which group-mass (∼2 keV) halos, which would go undetected at our survey depth, are accreting onto the ... |
author2 |
Mcdonald, M. Benson, B. A. Vikhlinin, A. Aird, K. A. Allen, S. W. Bautz, M. Bayliss, M. Bleem, L. E. Bocquet, S. Brodwin, M. Carlstrom, J. E. Chang, C. L. Cho, H. M. Clocchiatti, A. Crawford, T. M. Crites, A. T. De Haan, T. Dobbs, M. A. Foley, R. J. Forman, W. R. George, E. M. Gladders, M. D. Gonzalez, A. H. Halverson, N. W. Hlavacek-Larrondo, J. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Jones, C. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Liu, J. Lueker, M. Luong-Van, D. Mantz, A. Marrone, D. P. Mcmahon, J. J. Meyer, S. S. Miller, E. D. Mocanu, L. Mohr, J. J. Murray, S. S. Padin, S. Pryke, C. Reichardt, C. L. Rest, A. Ruhl, J. E. Saliwanchik, B. R. |
format |
Article in Journal/Newspaper |
author |
McDonald, M. Benson, B. A. Vikhlinin, A. Aird, K. A. Allen, S. W. Bautz, M. Bayliss, M. Bleem, L. E. Bocquet, S. Brodwin, M. Carlstrom, J. E. Chang, C. L. Cho, H. M. Clocchiatti, A. Crawford, T. M. Crites, A. T. De Haan, T. Dobbs, M. A. Foley, R. J. Forman, W. R. George, E. M. Gladders, M. D. Gonzalez, A. H. Halverson, N. W. Hlavacek-Larrondo, J. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Jones, C. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Liu, J. Lueker, M. Luong-Van, D. Mantz, A. Marrone, D. P. McMahon, J. J. Meyer, S. S. Miller, E. D. Mocanu, L. Mohr, J. J. Murray, S. S. Padin, S. Pryke, C. Reichardt, C. L. Rest, A. Ruhl, J. E. Saliwanchik, B. R. Saro, A. Sayre, J. T. Schaffer, K. K. Shirokoff, E. Spieler, H. G. Stalder, B. Stanford, S. A. Staniszewski, Z. Stark, A. A. Story, K. T. Stubbs, C. W. Vanderlinde, K. Vieira, J. D. Williamson, R. Zahn, O. Zenteno, A. |
author_facet |
McDonald, M. Benson, B. A. Vikhlinin, A. Aird, K. A. Allen, S. W. Bautz, M. Bayliss, M. Bleem, L. E. Bocquet, S. Brodwin, M. Carlstrom, J. E. Chang, C. L. Cho, H. M. Clocchiatti, A. Crawford, T. M. Crites, A. T. De Haan, T. Dobbs, M. A. Foley, R. J. Forman, W. R. George, E. M. Gladders, M. D. Gonzalez, A. H. Halverson, N. W. Hlavacek-Larrondo, J. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Jones, C. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Liu, J. Lueker, M. Luong-Van, D. Mantz, A. Marrone, D. P. McMahon, J. J. Meyer, S. S. Miller, E. D. Mocanu, L. Mohr, J. J. Murray, S. S. Padin, S. Pryke, C. Reichardt, C. L. Rest, A. Ruhl, J. E. Saliwanchik, B. R. Saro, A. Sayre, J. T. Schaffer, K. K. Shirokoff, E. Spieler, H. G. Stalder, B. Stanford, S. A. Staniszewski, Z. Stark, A. A. Story, K. T. Stubbs, C. W. Vanderlinde, K. Vieira, J. D. Williamson, R. Zahn, O. Zenteno, A. |
author_sort |
McDonald, M. |
title |
The redshift evolution of the mean temperature, pressure, and entropy profiles in 80 spt-selected galaxy clusters |
title_short |
The redshift evolution of the mean temperature, pressure, and entropy profiles in 80 spt-selected galaxy clusters |
title_full |
The redshift evolution of the mean temperature, pressure, and entropy profiles in 80 spt-selected galaxy clusters |
title_fullStr |
The redshift evolution of the mean temperature, pressure, and entropy profiles in 80 spt-selected galaxy clusters |
title_full_unstemmed |
The redshift evolution of the mean temperature, pressure, and entropy profiles in 80 spt-selected galaxy clusters |
title_sort |
redshift evolution of the mean temperature, pressure, and entropy profiles in 80 spt-selected galaxy clusters |
publishDate |
2014 |
url |
http://hdl.handle.net/11368/2963129 https://doi.org/10.1088/0004-637X/794/1/67 http://iopscience.iop.org/0004-637X/794/1/67/pdf/0004-637X_794_1_67.pdf |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000342581200067 volume:794 issue:1 firstpage:67 lastpage:- journal:THE ASTROPHYSICAL JOURNAL http://hdl.handle.net/11368/2963129 doi:10.1088/0004-637X/794/1/67 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84907575791 http://iopscience.iop.org/0004-637X/794/1/67/pdf/0004-637X_794_1_67.pdf |
op_doi |
https://doi.org/10.1088/0004-637X/794/1/67 |
container_title |
The Astrophysical Journal |
container_volume |
794 |
container_issue |
1 |
container_start_page |
67 |
_version_ |
1766202889662889984 |
spelling |
ftunitriestiris:oai:arts.units.it:11368/2963129 2023-05-15T18:23:19+02:00 The redshift evolution of the mean temperature, pressure, and entropy profiles in 80 spt-selected galaxy clusters McDonald, M. Benson, B. A. Vikhlinin, A. Aird, K. A. Allen, S. W. Bautz, M. Bayliss, M. Bleem, L. E. Bocquet, S. Brodwin, M. Carlstrom, J. E. Chang, C. L. Cho, H. M. Clocchiatti, A. Crawford, T. M. Crites, A. T. De Haan, T. Dobbs, M. A. Foley, R. J. Forman, W. R. George, E. M. Gladders, M. D. Gonzalez, A. H. Halverson, N. W. Hlavacek-Larrondo, J. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Jones, C. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Liu, J. Lueker, M. Luong-Van, D. Mantz, A. Marrone, D. P. McMahon, J. J. Meyer, S. S. Miller, E. D. Mocanu, L. Mohr, J. J. Murray, S. S. Padin, S. Pryke, C. Reichardt, C. L. Rest, A. Ruhl, J. E. Saliwanchik, B. R. Saro, A. Sayre, J. T. Schaffer, K. K. Shirokoff, E. Spieler, H. G. Stalder, B. Stanford, S. A. Staniszewski, Z. Stark, A. A. Story, K. T. Stubbs, C. W. Vanderlinde, K. Vieira, J. D. Williamson, R. Zahn, O. Zenteno, A. Mcdonald, M. Benson, B. A. Vikhlinin, A. Aird, K. A. Allen, S. W. Bautz, M. Bayliss, M. Bleem, L. E. Bocquet, S. Brodwin, M. Carlstrom, J. E. Chang, C. L. Cho, H. M. Clocchiatti, A. Crawford, T. M. Crites, A. T. De Haan, T. Dobbs, M. A. Foley, R. J. Forman, W. R. George, E. M. Gladders, M. D. Gonzalez, A. H. Halverson, N. W. Hlavacek-Larrondo, J. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Jones, C. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Liu, J. Lueker, M. Luong-Van, D. Mantz, A. Marrone, D. P. Mcmahon, J. J. Meyer, S. S. Miller, E. D. Mocanu, L. Mohr, J. J. Murray, S. S. Padin, S. Pryke, C. Reichardt, C. L. Rest, A. Ruhl, J. E. Saliwanchik, B. R. 2014 http://hdl.handle.net/11368/2963129 https://doi.org/10.1088/0004-637X/794/1/67 http://iopscience.iop.org/0004-637X/794/1/67/pdf/0004-637X_794_1_67.pdf eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000342581200067 volume:794 issue:1 firstpage:67 lastpage:- journal:THE ASTROPHYSICAL JOURNAL http://hdl.handle.net/11368/2963129 doi:10.1088/0004-637X/794/1/67 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84907575791 http://iopscience.iop.org/0004-637X/794/1/67/pdf/0004-637X_794_1_67.pdf early universe galaxies: clusters: general galaxies: clusters: intracluster medium X-rays: galaxies:cluster Astronomy and Astrophysic Space and Planetary Science info:eu-repo/semantics/article 2014 ftunitriestiris https://doi.org/10.1088/0004-637X/794/1/67 2023-04-09T06:18:14Z We present the results of an X-ray analysis of 80 galaxy clusters selected in the 2500 deg2 South Pole Telescope survey and observed with the Chandra X-ray Observatory. We divide the full sample into subsamples of ∼20 clusters based on redshift and central density, performing a joint X-ray spectral fit to all clusters in a subsample simultaneously, assuming self-similarity of the temperature profile. This approach allows us to constrain the shape of the temperature profile over 0 < 1.5R500, which would be impossible on a per-cluster basis, since the observations of individual clusters have, on average, 2000 X-ray counts. The results presented here represent the first constraints on the evolution of the average temperature profile from z = 0 to z = 1.2. We find that high-z (0.6 < 1.2) clusters are slightly (∼30%) cooler both in the inner (r < 0.1R500) and outer (r>R500) regions than their low-z (0.3 < 0.6) counterparts. Combining the average temperature profile with measured gas density profiles from our earlier work, we infer the average pressure and entropy profiles for each subsample. Confirming earlier results from this data set, we find an absence of strong cool cores at high z, manifested in this analysis as a significantly lower observed pressure in the central 0.1R500 of the high-z cool-core subset of clusters compared to the low-z cool-core subset. Overall, our observed pressure profiles agree well with earlier lower-redshift measurements, suggesting minimal redshift evolution in the pressure profile outside of the core. We find no measurable redshift evolution in the entropy profile at r 0.7R500—this may reflect a long-standing balance between cooling and feedback over long timescales and large physical scales. We observe a slight flattening of the entropy profile at r R500 in our high-z subsample. This flattening is consistent with a temperature bias due to the enhanced (∼3×) rate at which group-mass (∼2 keV) halos, which would go undetected at our survey depth, are accreting onto the ... Article in Journal/Newspaper South pole Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) South Pole The Astrophysical Journal 794 1 67 |