The discovery of a radio halo in PLCK G147.3-16.6 at Z = 0.65
Recent X-ray and Sunyaev-Zel'dovich (SZ) observations have dramatically increased the number of known distant galaxy clusters. In some merging, low-redshift (z < 0.4) clusters, centrally located, diffuse, extended radio emission (radio halos) has been found. Using the Giant Metrewave Rad...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Journal Article |
| Published: |
Institute of Physics Publishing
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/74836 |
| _version_ | 1848763386271105024 |
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| author | Van Weeren, R. Intema, Hubertus Lal, D. Bonafede, A. Jones, C. Forman, W. Röttgering, H. Brüggen, M. Stroe, A. Hoeft, M. Nuza, S. De Gasperin, F. |
| author_facet | Van Weeren, R. Intema, Hubertus Lal, D. Bonafede, A. Jones, C. Forman, W. Röttgering, H. Brüggen, M. Stroe, A. Hoeft, M. Nuza, S. De Gasperin, F. |
| author_sort | Van Weeren, R. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Recent X-ray and Sunyaev-Zel'dovich (SZ) observations have dramatically increased the number of known distant galaxy clusters. In some merging, low-redshift (z < 0.4) clusters, centrally located, diffuse, extended radio emission (radio halos) has been found. Using the Giant Metrewave Radio Telescope (GMRT), we report the detection of diffuse radio emission in the binary-merging cluster PLCK G147.3-16.6 located at z = 0.65. We classify the emission as a giant radio halo due to its large physical extent of about 0.9 Mpc and its low-surface brightness. We measure an integrated flux density of 7.3 ± 1.1 mJy at 610 MHz for the radio halo, resulting in a 1.4 GHz radio power of 5.1 × 1024 W Hz-1. The radio halo power is consistent with that expected from the known correlation between X-ray luminosity or the cluster integrated SZ signal and radio power. Our observations also suggest that more of these distant radio halos could be discovered with the GMRT. |
| first_indexed | 2025-11-14T11:02:38Z |
| format | Journal Article |
| id | curtin-20.500.11937-74836 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:02:38Z |
| publishDate | 2014 |
| publisher | Institute of Physics Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-748362019-07-22T03:41:50Z The discovery of a radio halo in PLCK G147.3-16.6 at Z = 0.65 Van Weeren, R. Intema, Hubertus Lal, D. Bonafede, A. Jones, C. Forman, W. Röttgering, H. Brüggen, M. Stroe, A. Hoeft, M. Nuza, S. De Gasperin, F. Recent X-ray and Sunyaev-Zel'dovich (SZ) observations have dramatically increased the number of known distant galaxy clusters. In some merging, low-redshift (z < 0.4) clusters, centrally located, diffuse, extended radio emission (radio halos) has been found. Using the Giant Metrewave Radio Telescope (GMRT), we report the detection of diffuse radio emission in the binary-merging cluster PLCK G147.3-16.6 located at z = 0.65. We classify the emission as a giant radio halo due to its large physical extent of about 0.9 Mpc and its low-surface brightness. We measure an integrated flux density of 7.3 ± 1.1 mJy at 610 MHz for the radio halo, resulting in a 1.4 GHz radio power of 5.1 × 1024 W Hz-1. The radio halo power is consistent with that expected from the known correlation between X-ray luminosity or the cluster integrated SZ signal and radio power. Our observations also suggest that more of these distant radio halos could be discovered with the GMRT. 2014 Journal Article http://hdl.handle.net/20.500.11937/74836 10.1088/2041-8205/781/2/L32 Institute of Physics Publishing fulltext |
| spellingShingle | Van Weeren, R. Intema, Hubertus Lal, D. Bonafede, A. Jones, C. Forman, W. Röttgering, H. Brüggen, M. Stroe, A. Hoeft, M. Nuza, S. De Gasperin, F. The discovery of a radio halo in PLCK G147.3-16.6 at Z = 0.65 |
| title | The discovery of a radio halo in PLCK G147.3-16.6 at Z = 0.65 |
| title_full | The discovery of a radio halo in PLCK G147.3-16.6 at Z = 0.65 |
| title_fullStr | The discovery of a radio halo in PLCK G147.3-16.6 at Z = 0.65 |
| title_full_unstemmed | The discovery of a radio halo in PLCK G147.3-16.6 at Z = 0.65 |
| title_short | The discovery of a radio halo in PLCK G147.3-16.6 at Z = 0.65 |
| title_sort | discovery of a radio halo in plck g147.3-16.6 at z = 0.65 |
| url | http://hdl.handle.net/20.500.11937/74836 |