Xray cavities in a sample of 83 SPT-selected clusters galaxies. Tracing the evolution of AGN feedback in clusters of galaxies out to z=1.2
X-ray cavities are key tracers of mechanical (or radio mode) heating arising from the active galactic nuclei (AGNs) in brightest cluster galaxies (BCGs). We report on a survey for X-ray cavities in 83 massive, high-redshift ($0.4\lt z\lt 1.2$) clusters of galaxies selected by their Sunyaev-Zel’dovic...
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Online Access: | http://www.osti.gov/servlets/purl/1326609 https://www.osti.gov/biblio/1326609 https://doi.org/10.1088/0004-637X/805/1/35 |
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ftosti:oai:osti.gov:1326609 2023-07-30T04:06:56+02:00 Xray cavities in a sample of 83 SPT-selected clusters galaxies. Tracing the evolution of AGN feedback in clusters of galaxies out to z=1.2 Hlavacek-Larrondo, J. McDonald, M. Benson, B. A. Forman, W. R. Allen, S. W. Bleem, L. E. Ashby, M. L. N. Bocquet, S. Brodwin, M. Dietrich, J. P. Jones, C. Liu, J. Reichardt, C. L. Saliwanchik, B. R. Saro, A. Schrabback, T. Song, J. Stalder, B. Vikhlinin, A. Zenteno, A. 2022-05-23 application/pdf http://www.osti.gov/servlets/purl/1326609 https://www.osti.gov/biblio/1326609 https://doi.org/10.1088/0004-637X/805/1/35 unknown http://www.osti.gov/servlets/purl/1326609 https://www.osti.gov/biblio/1326609 https://doi.org/10.1088/0004-637X/805/1/35 doi:10.1088/0004-637X/805/1/35 79 ASTRONOMY AND ASTROPHYSICS 2022 ftosti https://doi.org/10.1088/0004-637X/805/1/35 2023-07-11T09:15:31Z X-ray cavities are key tracers of mechanical (or radio mode) heating arising from the active galactic nuclei (AGNs) in brightest cluster galaxies (BCGs). We report on a survey for X-ray cavities in 83 massive, high-redshift ($0.4\lt z\lt 1.2$) clusters of galaxies selected by their Sunyaev-Zel’dovich signature in the South Pole Telescope data. Based on Chandra X-ray images, we find a total of six clusters having symmetric pairs of surface brightness depressions consistent with the picture of radio jets inflating X-ray cavities in the intracluster medium (ICM). The majority of these detections are of relatively low significance and require deeper follow-up data in order to be confirmed. Further, this search will miss small (<10 kpc) X-ray cavities that are unresolved by Chandra at high ($z\gtrsim 0.5$) redshift. Despite these limitations, our results suggest that the power generated by AGN feedback in BCGs has remained unchanged for over half of the age of the universe ($\gt 7$ Gyr at $z\sim 0.8$). On average, the detected X-ray cavities have powers of $(0.8-5)\times {{10}^{45}}\ {\rm erg}\ {{{\rm s}}^{-1}}$, enthalpies of $(3-6)\times {{10}^{59}}\ {\rm erg}$, and radii of ~17 kpc. Integrating over 7 Gyr, we find that the supermassive black holes in BCGs may have accreted 10(8) to several ${{10}^{9}}\,{{M}_{\odot }}$ of material to power these outflows. This level of accretion indicates that significant supermassive black hole growth may occur not only at early times, in the quasar era, but at late times as well. We also find that X-ray cavities at high redshift may inject an excess heat of 0.1–1.0 keV per particle into the hot ICM above and beyond the energy needed to offset cooling. Although this result needs to be confirmed, we note that the magnitude of excess heating is similar to the energy needed to preheat clusters, break self-similarity, and explain the excess entropy in hot atmospheres. Other/Unknown Material South pole SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) South Pole The Astrophysical Journal 805 1 35 |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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ftosti |
language |
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79 ASTRONOMY AND ASTROPHYSICS |
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79 ASTRONOMY AND ASTROPHYSICS Hlavacek-Larrondo, J. McDonald, M. Benson, B. A. Forman, W. R. Allen, S. W. Bleem, L. E. Ashby, M. L. N. Bocquet, S. Brodwin, M. Dietrich, J. P. Jones, C. Liu, J. Reichardt, C. L. Saliwanchik, B. R. Saro, A. Schrabback, T. Song, J. Stalder, B. Vikhlinin, A. Zenteno, A. Xray cavities in a sample of 83 SPT-selected clusters galaxies. Tracing the evolution of AGN feedback in clusters of galaxies out to z=1.2 |
topic_facet |
79 ASTRONOMY AND ASTROPHYSICS |
description |
X-ray cavities are key tracers of mechanical (or radio mode) heating arising from the active galactic nuclei (AGNs) in brightest cluster galaxies (BCGs). We report on a survey for X-ray cavities in 83 massive, high-redshift ($0.4\lt z\lt 1.2$) clusters of galaxies selected by their Sunyaev-Zel’dovich signature in the South Pole Telescope data. Based on Chandra X-ray images, we find a total of six clusters having symmetric pairs of surface brightness depressions consistent with the picture of radio jets inflating X-ray cavities in the intracluster medium (ICM). The majority of these detections are of relatively low significance and require deeper follow-up data in order to be confirmed. Further, this search will miss small (<10 kpc) X-ray cavities that are unresolved by Chandra at high ($z\gtrsim 0.5$) redshift. Despite these limitations, our results suggest that the power generated by AGN feedback in BCGs has remained unchanged for over half of the age of the universe ($\gt 7$ Gyr at $z\sim 0.8$). On average, the detected X-ray cavities have powers of $(0.8-5)\times {{10}^{45}}\ {\rm erg}\ {{{\rm s}}^{-1}}$, enthalpies of $(3-6)\times {{10}^{59}}\ {\rm erg}$, and radii of ~17 kpc. Integrating over 7 Gyr, we find that the supermassive black holes in BCGs may have accreted 10(8) to several ${{10}^{9}}\,{{M}_{\odot }}$ of material to power these outflows. This level of accretion indicates that significant supermassive black hole growth may occur not only at early times, in the quasar era, but at late times as well. We also find that X-ray cavities at high redshift may inject an excess heat of 0.1–1.0 keV per particle into the hot ICM above and beyond the energy needed to offset cooling. Although this result needs to be confirmed, we note that the magnitude of excess heating is similar to the energy needed to preheat clusters, break self-similarity, and explain the excess entropy in hot atmospheres. |
author |
Hlavacek-Larrondo, J. McDonald, M. Benson, B. A. Forman, W. R. Allen, S. W. Bleem, L. E. Ashby, M. L. N. Bocquet, S. Brodwin, M. Dietrich, J. P. Jones, C. Liu, J. Reichardt, C. L. Saliwanchik, B. R. Saro, A. Schrabback, T. Song, J. Stalder, B. Vikhlinin, A. Zenteno, A. |
author_facet |
Hlavacek-Larrondo, J. McDonald, M. Benson, B. A. Forman, W. R. Allen, S. W. Bleem, L. E. Ashby, M. L. N. Bocquet, S. Brodwin, M. Dietrich, J. P. Jones, C. Liu, J. Reichardt, C. L. Saliwanchik, B. R. Saro, A. Schrabback, T. Song, J. Stalder, B. Vikhlinin, A. Zenteno, A. |
author_sort |
Hlavacek-Larrondo, J. |
title |
Xray cavities in a sample of 83 SPT-selected clusters galaxies. Tracing the evolution of AGN feedback in clusters of galaxies out to z=1.2 |
title_short |
Xray cavities in a sample of 83 SPT-selected clusters galaxies. Tracing the evolution of AGN feedback in clusters of galaxies out to z=1.2 |
title_full |
Xray cavities in a sample of 83 SPT-selected clusters galaxies. Tracing the evolution of AGN feedback in clusters of galaxies out to z=1.2 |
title_fullStr |
Xray cavities in a sample of 83 SPT-selected clusters galaxies. Tracing the evolution of AGN feedback in clusters of galaxies out to z=1.2 |
title_full_unstemmed |
Xray cavities in a sample of 83 SPT-selected clusters galaxies. Tracing the evolution of AGN feedback in clusters of galaxies out to z=1.2 |
title_sort |
xray cavities in a sample of 83 spt-selected clusters galaxies. tracing the evolution of agn feedback in clusters of galaxies out to z=1.2 |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1326609 https://www.osti.gov/biblio/1326609 https://doi.org/10.1088/0004-637X/805/1/35 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
http://www.osti.gov/servlets/purl/1326609 https://www.osti.gov/biblio/1326609 https://doi.org/10.1088/0004-637X/805/1/35 doi:10.1088/0004-637X/805/1/35 |
op_doi |
https://doi.org/10.1088/0004-637X/805/1/35 |
container_title |
The Astrophysical Journal |
container_volume |
805 |
container_issue |
1 |
container_start_page |
35 |
_version_ |
1772819910211141632 |