MIGHTEE: Multi-wavelength counterparts in the COSMOS field
In this paper, we combine the Early Science radio continuum data from the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Survey, with optical and near-infrared data and release the cross-matched catalogues. The radio data used in this work covers 0.86 deg2 of the COSMOS field,...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
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2024
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| Online Access: | http://purl.org/au-research/grants/arc/DP210102103 http://hdl.handle.net/20.500.11937/94776 |
| _version_ | 1848765920526204928 |
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| author | Whittam, I.H. Prescott, M. Hale, C.L. Jarvis, M.J. Heywood, I. An, F. Glowacki, Marcin Maddox, N. Marchetti, L. Morabito, L.K. Adams, N.J. Bowler, R.A.A. Hatfield, P.W. Varadaraj, R.G. Collier, J. Frank, B. Taylor, A.R. Santos, M.G. Vaccari, M. Afonso, J. Ao, Y. Delhaize, J. Knowles, K. Kolwa, S. Randriamampandry, S.M. Randriamanakoto, Z. Smirnov, O. Smith, D.J.B. White, S.V. |
| author_facet | Whittam, I.H. Prescott, M. Hale, C.L. Jarvis, M.J. Heywood, I. An, F. Glowacki, Marcin Maddox, N. Marchetti, L. Morabito, L.K. Adams, N.J. Bowler, R.A.A. Hatfield, P.W. Varadaraj, R.G. Collier, J. Frank, B. Taylor, A.R. Santos, M.G. Vaccari, M. Afonso, J. Ao, Y. Delhaize, J. Knowles, K. Kolwa, S. Randriamampandry, S.M. Randriamanakoto, Z. Smirnov, O. Smith, D.J.B. White, S.V. |
| author_sort | Whittam, I.H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this paper, we combine the Early Science radio continuum data from the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Survey, with optical and near-infrared data and release the cross-matched catalogues. The radio data used in this work covers 0.86 deg2 of the COSMOS field, reaches a thermal noise of 1.7 μJy beam-1 and contains 6102 radio components. We visually inspect and cross-match the radio sample with optical and near-infrared data from the Hyper Suprime-Cam (HSC) and UltraVISTA surveys. This allows the properties of active galactic nuclei and star-forming populations of galaxies to be probed out to z ≈ 5. Additionally, we use the likelihood ratio method to automatically cross-match the radio and optical catalogues and compare this to the visually cross-matched catalogue. We find that 94 per cent of our radio source catalogue can be matched with this method, with a reliability of 95 per cent. We proceed to show that visual classification will still remain an essential process for the cross-matching of complex and extended radio sources. In the near future, the MIGHTEE survey will be expanded in area to cover a total of ∼20 deg2; thus the combination of automated and visual identification will be critical. We compare the redshift distribution of SFG and AGN to the SKADS and T-RECS simulations and find more AGN than predicted at z ∼1. |
| first_indexed | 2025-11-14T11:42:55Z |
| format | Journal Article |
| id | curtin-20.500.11937-94776 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:42:55Z |
| publishDate | 2024 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-947762024-05-07T08:48:39Z MIGHTEE: Multi-wavelength counterparts in the COSMOS field Whittam, I.H. Prescott, M. Hale, C.L. Jarvis, M.J. Heywood, I. An, F. Glowacki, Marcin Maddox, N. Marchetti, L. Morabito, L.K. Adams, N.J. Bowler, R.A.A. Hatfield, P.W. Varadaraj, R.G. Collier, J. Frank, B. Taylor, A.R. Santos, M.G. Vaccari, M. Afonso, J. Ao, Y. Delhaize, J. Knowles, K. Kolwa, S. Randriamampandry, S.M. Randriamanakoto, Z. Smirnov, O. Smith, D.J.B. White, S.V. In this paper, we combine the Early Science radio continuum data from the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Survey, with optical and near-infrared data and release the cross-matched catalogues. The radio data used in this work covers 0.86 deg2 of the COSMOS field, reaches a thermal noise of 1.7 μJy beam-1 and contains 6102 radio components. We visually inspect and cross-match the radio sample with optical and near-infrared data from the Hyper Suprime-Cam (HSC) and UltraVISTA surveys. This allows the properties of active galactic nuclei and star-forming populations of galaxies to be probed out to z ≈ 5. Additionally, we use the likelihood ratio method to automatically cross-match the radio and optical catalogues and compare this to the visually cross-matched catalogue. We find that 94 per cent of our radio source catalogue can be matched with this method, with a reliability of 95 per cent. We proceed to show that visual classification will still remain an essential process for the cross-matching of complex and extended radio sources. In the near future, the MIGHTEE survey will be expanded in area to cover a total of ∼20 deg2; thus the combination of automated and visual identification will be critical. We compare the redshift distribution of SFG and AGN to the SKADS and T-RECS simulations and find more AGN than predicted at z ∼1. 2024 Journal Article http://hdl.handle.net/20.500.11937/94776 10.1093/mnras/stad3307 http://purl.org/au-research/grants/arc/DP210102103 http://creativecommons.org/licenses/by/4.0/ fulltext |
| spellingShingle | Whittam, I.H. Prescott, M. Hale, C.L. Jarvis, M.J. Heywood, I. An, F. Glowacki, Marcin Maddox, N. Marchetti, L. Morabito, L.K. Adams, N.J. Bowler, R.A.A. Hatfield, P.W. Varadaraj, R.G. Collier, J. Frank, B. Taylor, A.R. Santos, M.G. Vaccari, M. Afonso, J. Ao, Y. Delhaize, J. Knowles, K. Kolwa, S. Randriamampandry, S.M. Randriamanakoto, Z. Smirnov, O. Smith, D.J.B. White, S.V. MIGHTEE: Multi-wavelength counterparts in the COSMOS field |
| title | MIGHTEE: Multi-wavelength counterparts in the COSMOS field |
| title_full | MIGHTEE: Multi-wavelength counterparts in the COSMOS field |
| title_fullStr | MIGHTEE: Multi-wavelength counterparts in the COSMOS field |
| title_full_unstemmed | MIGHTEE: Multi-wavelength counterparts in the COSMOS field |
| title_short | MIGHTEE: Multi-wavelength counterparts in the COSMOS field |
| title_sort | mightee: multi-wavelength counterparts in the cosmos field |
| url | http://purl.org/au-research/grants/arc/DP210102103 http://hdl.handle.net/20.500.11937/94776 |