MeerKAT view of Hickson Compact Groups. I. Data description and release
Abstract Context. Hickson Compact Groups (HCGs) are dense gravitationally bound collections of four to ten galaxies and are ideal for studying gas and star formation quenching processes. Aims. We aim to understand the transition of HCGs from possessing complex H I tidal structures (so-called phase 2...
| Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/226060 |
| Acceso en línea: | https://hdl.handle.net/2445/226060 |
| Access Level: | acceso abierto |
| Palabra clave: | Galàxies Evolució de les galàxies Astrofísica Galaxies Galaxies evolution Astrophysics |
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MeerKAT view of Hickson Compact Groups. I. Data description and releaseBosma, A.Athanassoula, E.Józsa, G.I.G.Jarrett, T.H.Xu, C.K.Román, J.Labadie, X.Cabanillas de la Casa, C.Borthakur, S.Wang, J.García-Benito, R.del Olmo, A.Perea, J.D.Wiegert, T.Yun, M.Ianjamasimanana, R.Verdes-Montenegro, L.Sorgho, A.Hess, K.M.Jones, M.G.Cannon, J.M.Solanes, José M. (José María)Cluver, M.E.Moldón, J.Namumba ,B.Garrido, J.Sánchez-Expósito, S.GalàxiesEvolució de les galàxiesAstrofísicaGalaxiesGalaxies evolutionAstrophysicsAbstract Context. Hickson Compact Groups (HCGs) are dense gravitationally bound collections of four to ten galaxies and are ideal for studying gas and star formation quenching processes. Aims. We aim to understand the transition of HCGs from possessing complex H I tidal structures (so-called phase 2 groups) to a phase where galaxies have lost most or all of their H I (phase 3). We also seek to detect diffuse H I gas that was previously missed by the Very Large Array (VLA). Methods. We observed three phase 2 and three phase 3 HCGs with MeerKAT and reduced the data using the Containerized Automated Radio Astronomy Calibration (CARACal) pipeline. We produced data cubes, moment maps, and integrated spectra, and we compared our findings with previous VLA and Green Bank Telescope observations. Results. Compared with previous VLA observations, MeerKAT reveals much more extended tidal features in phase 2 and some new high surface brightness features in phase 3 groups. However, no diffuse H I component was found in phase 3 groups. We also detected many surrounding galaxies for both phase 2 and phase 3 groups, most of which are normal disc galaxies. Conclusions. The difference between phase 2 and phase 3 groups is still substantial, supporting the previous finding that the transition between the two phases must be abrupt.EDP Sciences2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/226060Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1051/0004-6361/202453005Astronomy & Astrophysics, 2025, vol. 696, p. 1-37https://doi.org/10.1051/0004-6361/202453005(c) The European Southern Observatory (ESO), 2025info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2260602026-05-27T06:46:51Z |
| dc.title.none.fl_str_mv |
MeerKAT view of Hickson Compact Groups. I. Data description and release |
| title |
MeerKAT view of Hickson Compact Groups. I. Data description and release |
| spellingShingle |
MeerKAT view of Hickson Compact Groups. I. Data description and release Bosma, A. Galàxies Evolució de les galàxies Astrofísica Galaxies Galaxies evolution Astrophysics |
| title_short |
MeerKAT view of Hickson Compact Groups. I. Data description and release |
| title_full |
MeerKAT view of Hickson Compact Groups. I. Data description and release |
| title_fullStr |
MeerKAT view of Hickson Compact Groups. I. Data description and release |
| title_full_unstemmed |
MeerKAT view of Hickson Compact Groups. I. Data description and release |
| title_sort |
MeerKAT view of Hickson Compact Groups. I. Data description and release |
| dc.creator.none.fl_str_mv |
Bosma, A. Athanassoula, E. Józsa, G.I.G. Jarrett, T.H. Xu, C.K. Román, J. Labadie, X. Cabanillas de la Casa, C. Borthakur, S. Wang, J. García-Benito, R. del Olmo, A. Perea, J.D. Wiegert, T. Yun, M. Ianjamasimanana, R. Verdes-Montenegro, L. Sorgho, A. Hess, K.M. Jones, M.G. Cannon, J.M. Solanes, José M. (José María) Cluver, M.E. Moldón, J. Namumba ,B. Garrido, J. Sánchez-Expósito, S. |
| author |
Bosma, A. |
| author_facet |
Bosma, A. Athanassoula, E. Józsa, G.I.G. Jarrett, T.H. Xu, C.K. Román, J. Labadie, X. Cabanillas de la Casa, C. Borthakur, S. Wang, J. García-Benito, R. del Olmo, A. Perea, J.D. Wiegert, T. Yun, M. Ianjamasimanana, R. Verdes-Montenegro, L. Sorgho, A. Hess, K.M. Jones, M.G. Cannon, J.M. Solanes, José M. (José María) Cluver, M.E. Moldón, J. Namumba ,B. Garrido, J. Sánchez-Expósito, S. |
| author_role |
author |
| author2 |
Athanassoula, E. Józsa, G.I.G. Jarrett, T.H. Xu, C.K. Román, J. Labadie, X. Cabanillas de la Casa, C. Borthakur, S. Wang, J. García-Benito, R. del Olmo, A. Perea, J.D. Wiegert, T. Yun, M. Ianjamasimanana, R. Verdes-Montenegro, L. Sorgho, A. Hess, K.M. Jones, M.G. Cannon, J.M. Solanes, José M. (José María) Cluver, M.E. Moldón, J. Namumba ,B. Garrido, J. Sánchez-Expósito, S. |
| author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Galàxies Evolució de les galàxies Astrofísica Galaxies Galaxies evolution Astrophysics |
| topic |
Galàxies Evolució de les galàxies Astrofísica Galaxies Galaxies evolution Astrophysics |
| description |
Abstract Context. Hickson Compact Groups (HCGs) are dense gravitationally bound collections of four to ten galaxies and are ideal for studying gas and star formation quenching processes. Aims. We aim to understand the transition of HCGs from possessing complex H I tidal structures (so-called phase 2 groups) to a phase where galaxies have lost most or all of their H I (phase 3). We also seek to detect diffuse H I gas that was previously missed by the Very Large Array (VLA). Methods. We observed three phase 2 and three phase 3 HCGs with MeerKAT and reduced the data using the Containerized Automated Radio Astronomy Calibration (CARACal) pipeline. We produced data cubes, moment maps, and integrated spectra, and we compared our findings with previous VLA and Green Bank Telescope observations. Results. Compared with previous VLA observations, MeerKAT reveals much more extended tidal features in phase 2 and some new high surface brightness features in phase 3 groups. However, no diffuse H I component was found in phase 3 groups. We also detected many surrounding galaxies for both phase 2 and phase 3 groups, most of which are normal disc galaxies. Conclusions. The difference between phase 2 and phase 3 groups is still substantial, supporting the previous finding that the transition between the two phases must be abrupt. |
| publishDate |
2025 |
| dc.date.none.fl_str_mv |
2025 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2445/226060 |
| url |
https://hdl.handle.net/2445/226060 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Reproducció del document publicat a: https://doi.org/10.1051/0004-6361/202453005 Astronomy & Astrophysics, 2025, vol. 696, p. 1-37 https://doi.org/10.1051/0004-6361/202453005 |
| dc.rights.none.fl_str_mv |
(c) The European Southern Observatory (ESO), 2025 info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
(c) The European Southern Observatory (ESO), 2025 |
| eu_rights_str_mv |
openAccess |
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application/pdf |
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EDP Sciences |
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EDP Sciences |
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Articles publicats en revistes (Física Quàntica i Astrofísica) reponame:Dipòsit Digital de la UB instname:Universidad de Barcelona |
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Universidad de Barcelona |
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Dipòsit Digital de la UB |
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Dipòsit Digital de la UB |
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15,81155 |