Discovery of a Powerful >10 61 erg AGN Outburst in the Distant Galaxy Cluster SPT-CLJ0528-5300
Here we present ~103 ks of Chandra observations of the galaxy cluster SPT-CLJ0528-5300 (SPT0528, z = 0.768). This cluster harbors the most radio-loud (L 1.4GHz = 1.01 × 1033 erg s -1 Hz -1 ) central active galactic nucleus (AGN) of any cluster in the South Pole Telescope (SPT) Sunyaev–Zeldovich surv...
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ftosti:oai:osti.gov:1592155 2023-07-30T04:06:55+02:00 Discovery of a Powerful >10 61 erg AGN Outburst in the Distant Galaxy Cluster SPT-CLJ0528-5300 Calzadilla, Michael S. McDonald, Michael Bayliss, Matthew Benson, Bradford A. Bleem, Lindsey E. Brodwin, Mark Edge, Alastair C. Floyd, Benjamin Gupta, Nikhel Hlavacek-Larrondo, Julie McNamara, Brian R. Reichardt, Christian L. 2023-06-30 application/pdf http://www.osti.gov/servlets/purl/1592155 https://www.osti.gov/biblio/1592155 https://doi.org/10.3847/2041-8213/ab5b07 unknown http://www.osti.gov/servlets/purl/1592155 https://www.osti.gov/biblio/1592155 https://doi.org/10.3847/2041-8213/ab5b07 doi:10.3847/2041-8213/ab5b07 79 ASTRONOMY AND ASTROPHYSICS 2023 ftosti https://doi.org/10.3847/2041-8213/ab5b07 2023-07-11T09:39:01Z Here we present ~103 ks of Chandra observations of the galaxy cluster SPT-CLJ0528-5300 (SPT0528, z = 0.768). This cluster harbors the most radio-loud (L 1.4GHz = 1.01 × 1033 erg s -1 Hz -1 ) central active galactic nucleus (AGN) of any cluster in the South Pole Telescope (SPT) Sunyaev–Zeldovich survey with available X-ray data. We find evidence of AGN-inflated cavities in the X-ray emission, which are consistent with the orientation of the jet direction revealed by Australia Telescope Compact Array radio data. The combined probability that two such depressions—each at ~1.4–1.8σ significance, oriented ~180° apart and aligned with the jet axis—would occur by chance is 0.1%. At ≳10 61 erg, the outburst in SPT0528 is among the most energetic known in the universe, and certainly the most powerful known at z > 0.25. This work demonstrates that such powerful outbursts can be detected even in shallow X-ray exposures out to relatively high redshifts (z ~ 0.8), providing an avenue for studying the evolution of extreme AGN feedback. The ratio of the cavity power ( P cav = (9.4 ± 5.8) x 104 5 erg s -1 ) to the cooling luminosity (L cool = (1.5 ± 0.5) × 10 44 erg s -1 ) for SPT0528 is among the highest measured to date. If, in the future, additional systems are discovered at similar redshifts with equally high P cav /L cool ratios, it would imply that the feedback/cooling cycle was not as gentle at high redshifts as in the low-redshift universe. Other/Unknown Material South pole SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) South Pole The Astrophysical Journal 887 1 L17 |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
79 ASTRONOMY AND ASTROPHYSICS |
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79 ASTRONOMY AND ASTROPHYSICS Calzadilla, Michael S. McDonald, Michael Bayliss, Matthew Benson, Bradford A. Bleem, Lindsey E. Brodwin, Mark Edge, Alastair C. Floyd, Benjamin Gupta, Nikhel Hlavacek-Larrondo, Julie McNamara, Brian R. Reichardt, Christian L. Discovery of a Powerful >10 61 erg AGN Outburst in the Distant Galaxy Cluster SPT-CLJ0528-5300 |
topic_facet |
79 ASTRONOMY AND ASTROPHYSICS |
description |
Here we present ~103 ks of Chandra observations of the galaxy cluster SPT-CLJ0528-5300 (SPT0528, z = 0.768). This cluster harbors the most radio-loud (L 1.4GHz = 1.01 × 1033 erg s -1 Hz -1 ) central active galactic nucleus (AGN) of any cluster in the South Pole Telescope (SPT) Sunyaev–Zeldovich survey with available X-ray data. We find evidence of AGN-inflated cavities in the X-ray emission, which are consistent with the orientation of the jet direction revealed by Australia Telescope Compact Array radio data. The combined probability that two such depressions—each at ~1.4–1.8σ significance, oriented ~180° apart and aligned with the jet axis—would occur by chance is 0.1%. At ≳10 61 erg, the outburst in SPT0528 is among the most energetic known in the universe, and certainly the most powerful known at z > 0.25. This work demonstrates that such powerful outbursts can be detected even in shallow X-ray exposures out to relatively high redshifts (z ~ 0.8), providing an avenue for studying the evolution of extreme AGN feedback. The ratio of the cavity power ( P cav = (9.4 ± 5.8) x 104 5 erg s -1 ) to the cooling luminosity (L cool = (1.5 ± 0.5) × 10 44 erg s -1 ) for SPT0528 is among the highest measured to date. If, in the future, additional systems are discovered at similar redshifts with equally high P cav /L cool ratios, it would imply that the feedback/cooling cycle was not as gentle at high redshifts as in the low-redshift universe. |
author |
Calzadilla, Michael S. McDonald, Michael Bayliss, Matthew Benson, Bradford A. Bleem, Lindsey E. Brodwin, Mark Edge, Alastair C. Floyd, Benjamin Gupta, Nikhel Hlavacek-Larrondo, Julie McNamara, Brian R. Reichardt, Christian L. |
author_facet |
Calzadilla, Michael S. McDonald, Michael Bayliss, Matthew Benson, Bradford A. Bleem, Lindsey E. Brodwin, Mark Edge, Alastair C. Floyd, Benjamin Gupta, Nikhel Hlavacek-Larrondo, Julie McNamara, Brian R. Reichardt, Christian L. |
author_sort |
Calzadilla, Michael S. |
title |
Discovery of a Powerful >10 61 erg AGN Outburst in the Distant Galaxy Cluster SPT-CLJ0528-5300 |
title_short |
Discovery of a Powerful >10 61 erg AGN Outburst in the Distant Galaxy Cluster SPT-CLJ0528-5300 |
title_full |
Discovery of a Powerful >10 61 erg AGN Outburst in the Distant Galaxy Cluster SPT-CLJ0528-5300 |
title_fullStr |
Discovery of a Powerful >10 61 erg AGN Outburst in the Distant Galaxy Cluster SPT-CLJ0528-5300 |
title_full_unstemmed |
Discovery of a Powerful >10 61 erg AGN Outburst in the Distant Galaxy Cluster SPT-CLJ0528-5300 |
title_sort |
discovery of a powerful >10 61 erg agn outburst in the distant galaxy cluster spt-clj0528-5300 |
publishDate |
2023 |
url |
http://www.osti.gov/servlets/purl/1592155 https://www.osti.gov/biblio/1592155 https://doi.org/10.3847/2041-8213/ab5b07 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
http://www.osti.gov/servlets/purl/1592155 https://www.osti.gov/biblio/1592155 https://doi.org/10.3847/2041-8213/ab5b07 doi:10.3847/2041-8213/ab5b07 |
op_doi |
https://doi.org/10.3847/2041-8213/ab5b07 |
container_title |
The Astrophysical Journal |
container_volume |
887 |
container_issue |
1 |
container_start_page |
L17 |
_version_ |
1772819872152027136 |