A mature galaxy cluster at z= 1.58 around the radio galaxy 7C 1753+6311
We report on the discovery of a z = 1.58 mature cluster around the high-redshift radio galaxy 7C 1753+6311, first identified in the Clusters Around Radio-loud active galactic nuclei survey. Two-thirds of the excess galaxies within the central 1 Mpc lie on a red sequence with a color that is consiste...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
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IOP Publishing
2016
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| Online Access: | https://eprints.nottingham.ac.uk/37220/ |
| _version_ | 1848795416544411648 |
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| author | Cooke, Elizabeth A. Hatch, Nina A. Stern, D. Rettura, A. Brodwin, M. Galametz, A. Wylezalek, D. Bridge, C. Conselice, Christopher J. Breuck, C. De Gonzalez, A.H. Jarvis, M. |
| author_facet | Cooke, Elizabeth A. Hatch, Nina A. Stern, D. Rettura, A. Brodwin, M. Galametz, A. Wylezalek, D. Bridge, C. Conselice, Christopher J. Breuck, C. De Gonzalez, A.H. Jarvis, M. |
| author_sort | Cooke, Elizabeth A. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We report on the discovery of a z = 1.58 mature cluster around the high-redshift radio galaxy 7C 1753+6311, first identified in the Clusters Around Radio-loud active galactic nuclei survey. Two-thirds of the excess galaxies within the central 1 Mpc lie on a red sequence with a color that is consistent with an average formation redshift of zf ~ 3. We show that 80 ± 6% of the red sequence galaxies in the cluster core are quiescent, while the remaining 20% are red due to dusty star formation. We demonstrate that the cluster has an enhanced quiescent galaxy fraction that is three times that of the control field. We also show that this enhancement is mass dependent: 91 ± 9% of the ${M}_{*}\gt {10}^{10.5}$M⊙ cluster galaxies are quiescent, compared to only 36 ± 2% of field galaxies, whereas the fraction of quiescent galaxies with lower masses is the same in the cluster and field environments. The presence of a dense core and a well-formed, quiescent red sequence suggest that this is a mature cluster. This means that distant radio galaxies do not solely reside in young, uncollapsed protoclusters, rather they can be found in clusters in a wide range of evolutionary states. |
| first_indexed | 2025-11-14T19:31:44Z |
| format | Article |
| id | nottingham-37220 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:31:44Z |
| publishDate | 2016 |
| publisher | IOP Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-372202020-05-04T17:32:01Z https://eprints.nottingham.ac.uk/37220/ A mature galaxy cluster at z= 1.58 around the radio galaxy 7C 1753+6311 Cooke, Elizabeth A. Hatch, Nina A. Stern, D. Rettura, A. Brodwin, M. Galametz, A. Wylezalek, D. Bridge, C. Conselice, Christopher J. Breuck, C. De Gonzalez, A.H. Jarvis, M. We report on the discovery of a z = 1.58 mature cluster around the high-redshift radio galaxy 7C 1753+6311, first identified in the Clusters Around Radio-loud active galactic nuclei survey. Two-thirds of the excess galaxies within the central 1 Mpc lie on a red sequence with a color that is consistent with an average formation redshift of zf ~ 3. We show that 80 ± 6% of the red sequence galaxies in the cluster core are quiescent, while the remaining 20% are red due to dusty star formation. We demonstrate that the cluster has an enhanced quiescent galaxy fraction that is three times that of the control field. We also show that this enhancement is mass dependent: 91 ± 9% of the ${M}_{*}\gt {10}^{10.5}$M⊙ cluster galaxies are quiescent, compared to only 36 ± 2% of field galaxies, whereas the fraction of quiescent galaxies with lower masses is the same in the cluster and field environments. The presence of a dense core and a well-formed, quiescent red sequence suggest that this is a mature cluster. This means that distant radio galaxies do not solely reside in young, uncollapsed protoclusters, rather they can be found in clusters in a wide range of evolutionary states. IOP Publishing 2016-01-14 Article PeerReviewed Cooke, Elizabeth A., Hatch, Nina A., Stern, D., Rettura, A., Brodwin, M., Galametz, A., Wylezalek, D., Bridge, C., Conselice, Christopher J., Breuck, C. De, Gonzalez, A.H. and Jarvis, M. (2016) A mature galaxy cluster at z= 1.58 around the radio galaxy 7C 1753+6311. Astrophysical Journal, 816 (2). 83/1-83/8. ISSN 1538-4357 galaxies: clusters: individual (CARLA J1753+6311); galaxies: evolution; galaxies: formation; galaxies: high-redshift; galaxies: individual (7C 1753+6311) http://iopscience.iop.org/article/10.3847/0004-637X/816/2/83/meta;jsessionid=107EA5A9EAACF1549C79D08CF9AFAEC3.c3.iopscience.cld.iop.org doi:10.3847/0004-637X/816/2/83 doi:10.3847/0004-637X/816/2/83 |
| spellingShingle | galaxies: clusters: individual (CARLA J1753+6311); galaxies: evolution; galaxies: formation; galaxies: high-redshift; galaxies: individual (7C 1753+6311) Cooke, Elizabeth A. Hatch, Nina A. Stern, D. Rettura, A. Brodwin, M. Galametz, A. Wylezalek, D. Bridge, C. Conselice, Christopher J. Breuck, C. De Gonzalez, A.H. Jarvis, M. A mature galaxy cluster at z= 1.58 around the radio galaxy 7C 1753+6311 |
| title | A mature galaxy cluster at z= 1.58 around the radio galaxy 7C 1753+6311 |
| title_full | A mature galaxy cluster at z= 1.58 around the radio galaxy 7C 1753+6311 |
| title_fullStr | A mature galaxy cluster at z= 1.58 around the radio galaxy 7C 1753+6311 |
| title_full_unstemmed | A mature galaxy cluster at z= 1.58 around the radio galaxy 7C 1753+6311 |
| title_short | A mature galaxy cluster at z= 1.58 around the radio galaxy 7C 1753+6311 |
| title_sort | mature galaxy cluster at z= 1.58 around the radio galaxy 7c 1753+6311 |
| topic | galaxies: clusters: individual (CARLA J1753+6311); galaxies: evolution; galaxies: formation; galaxies: high-redshift; galaxies: individual (7C 1753+6311) |
| url | https://eprints.nottingham.ac.uk/37220/ https://eprints.nottingham.ac.uk/37220/ https://eprints.nottingham.ac.uk/37220/ |