Dependence of IR-Bright AGN Activity on Halo Mass and Redshift in the SPT Cluster Surveys
The number of active galactic nuclei (AGN) in galaxy clusters has been observed to grow by nearly two orders of magnitude from the local universe to z ~ 1.5. Star formation rates in clusters have also been observed to rise rapidly over this redshift interval. These trends, along with several other r...
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ftzenodo:oai:zenodo.org:5009054 2024-09-15T18:36:47+00:00 Dependence of IR-Bright AGN Activity on Halo Mass and Redshift in the SPT Cluster Surveys Floyd, Benjamin Brodwin, Mark Canning, Rebecca E. A. 2021-06-14 https://doi.org/10.5281/zenodo.5009054 unknown Zenodo https://zenodo.org/communities/gcf2021 https://doi.org/10.5281/zenodo.5009053 https://doi.org/10.5281/zenodo.5009054 oai:zenodo.org:5009054 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode Galaxy Clusters Active Galactic Nuclei Galaxy Evolution info:eu-repo/semantics/conferencePoster 2021 ftzenodo https://doi.org/10.5281/zenodo.500905410.5281/zenodo.5009053 2024-07-26T01:16:43Z The number of active galactic nuclei (AGN) in galaxy clusters has been observed to grow by nearly two orders of magnitude from the local universe to z ~ 1.5. Star formation rates in clusters have also been observed to rise rapidly over this redshift interval. These trends, along with several other recent observations of high-redshift clusters, have led to the idea that this enhanced star formation and AGN activity may be driven by galaxy mergers within the clusters. Since mergers are more efficient in lower mass clusters with smaller galaxy velocity dispersions, the expectation is that AGN incidence should scale inversely with cluster mass. A recent study using X-ray selected AGN has offered some support for this model in low-redshift clusters, though with large uncertainties. We select infrared-bright AGN from a large, uniform, essentially mass-selected galaxy cluster sample from the South Pole Telescope spanning a redshift range of 0.15 < z < 1.7 for which we have acquired follow-up Spitzer Space Telescope observations. With these data we explore the incidence of IR-bright AGN in clusters as a function of cluster mass and redshift. Conference Object South pole Zenodo |
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Galaxy Clusters Active Galactic Nuclei Galaxy Evolution |
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Galaxy Clusters Active Galactic Nuclei Galaxy Evolution Floyd, Benjamin Brodwin, Mark Canning, Rebecca E. A. Dependence of IR-Bright AGN Activity on Halo Mass and Redshift in the SPT Cluster Surveys |
topic_facet |
Galaxy Clusters Active Galactic Nuclei Galaxy Evolution |
description |
The number of active galactic nuclei (AGN) in galaxy clusters has been observed to grow by nearly two orders of magnitude from the local universe to z ~ 1.5. Star formation rates in clusters have also been observed to rise rapidly over this redshift interval. These trends, along with several other recent observations of high-redshift clusters, have led to the idea that this enhanced star formation and AGN activity may be driven by galaxy mergers within the clusters. Since mergers are more efficient in lower mass clusters with smaller galaxy velocity dispersions, the expectation is that AGN incidence should scale inversely with cluster mass. A recent study using X-ray selected AGN has offered some support for this model in low-redshift clusters, though with large uncertainties. We select infrared-bright AGN from a large, uniform, essentially mass-selected galaxy cluster sample from the South Pole Telescope spanning a redshift range of 0.15 < z < 1.7 for which we have acquired follow-up Spitzer Space Telescope observations. With these data we explore the incidence of IR-bright AGN in clusters as a function of cluster mass and redshift. |
format |
Conference Object |
author |
Floyd, Benjamin Brodwin, Mark Canning, Rebecca E. A. |
author_facet |
Floyd, Benjamin Brodwin, Mark Canning, Rebecca E. A. |
author_sort |
Floyd, Benjamin |
title |
Dependence of IR-Bright AGN Activity on Halo Mass and Redshift in the SPT Cluster Surveys |
title_short |
Dependence of IR-Bright AGN Activity on Halo Mass and Redshift in the SPT Cluster Surveys |
title_full |
Dependence of IR-Bright AGN Activity on Halo Mass and Redshift in the SPT Cluster Surveys |
title_fullStr |
Dependence of IR-Bright AGN Activity on Halo Mass and Redshift in the SPT Cluster Surveys |
title_full_unstemmed |
Dependence of IR-Bright AGN Activity on Halo Mass and Redshift in the SPT Cluster Surveys |
title_sort |
dependence of ir-bright agn activity on halo mass and redshift in the spt cluster surveys |
publisher |
Zenodo |
publishDate |
2021 |
url |
https://doi.org/10.5281/zenodo.5009054 |
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South pole |
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South pole |
op_relation |
https://zenodo.org/communities/gcf2021 https://doi.org/10.5281/zenodo.5009053 https://doi.org/10.5281/zenodo.5009054 oai:zenodo.org:5009054 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.500905410.5281/zenodo.5009053 |
_version_ |
1810480491665555456 |