A systematic cross-search for radio/infrared counterparts of XMM-Newton sources
We present a catalog of cross-correlated radio, infrared and X-ray sources using a very restrictive selection criteria with an IDL-based code developed by us. The significance of the observed coincidences was evaluated through Monte Carlo simulations of synthetic sources following a well-tested prot...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_0004640X_v331_n1_p53_Combi |
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todo:paper_0004640X_v331_n1_p53_Combi2023-10-03T14:02:59Z A systematic cross-search for radio/infrared counterparts of XMM-Newton sources Combi, J.A. Colombo, J.F.A. Pellizza, L. López-Santiago, J. Romero, G.E. Martí, J. Muñoz-Arjonilla, A.J. Sánchez-Ayaso, E. Luque-Escamilla, P.L. Sánchez-Sutil, J.R. Catalogs Infrared: general Methods: statistical Radio continuum: general Surveys X-rays: general We present a catalog of cross-correlated radio, infrared and X-ray sources using a very restrictive selection criteria with an IDL-based code developed by us. The significance of the observed coincidences was evaluated through Monte Carlo simulations of synthetic sources following a well-tested protocol. We found 3320 coincident radio/X-ray sources with a high statistical significance characterized by the sum of error-weighted coordinate differences. For 997 of them, 2MASS counterparts were found. The percentage of chance coincidences is less than 1%. X-ray hardness ratios of well-known populations of objects were used to provide a crude representation of their X-ray spectrum and to make a preliminary diagnosis of the possible nature of unidentified X-ray sources. The results support the fact that the X-ray sky is largely dominated by Active Galactic Nuclei at high galactic latitudes ({pipe}b{pipe}≥10°). At low galactic latitudes ({pipe}b{pipe}≤10°) most of unidentified X-ray sources (~94%) lie at {pipe}b{pipe}≤2°. This result suggests that most of the unidentified sources found toward the Milky Way plane are galactic objects. Well-known and unidentified sources were classified in different tables with their corresponding radio/infrared and X-ray properties. These tables are intended as a useful tool for researchers interested in particular identifications. © 2010 Springer Science+Business Media B.V. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0004640X_v331_n1_p53_Combi |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Catalogs Infrared: general Methods: statistical Radio continuum: general Surveys X-rays: general |
| spellingShingle |
Catalogs Infrared: general Methods: statistical Radio continuum: general Surveys X-rays: general Combi, J.A. Colombo, J.F.A. Pellizza, L. López-Santiago, J. Romero, G.E. Martí, J. Muñoz-Arjonilla, A.J. Sánchez-Ayaso, E. Luque-Escamilla, P.L. Sánchez-Sutil, J.R. A systematic cross-search for radio/infrared counterparts of XMM-Newton sources |
| topic_facet |
Catalogs Infrared: general Methods: statistical Radio continuum: general Surveys X-rays: general |
| description |
We present a catalog of cross-correlated radio, infrared and X-ray sources using a very restrictive selection criteria with an IDL-based code developed by us. The significance of the observed coincidences was evaluated through Monte Carlo simulations of synthetic sources following a well-tested protocol. We found 3320 coincident radio/X-ray sources with a high statistical significance characterized by the sum of error-weighted coordinate differences. For 997 of them, 2MASS counterparts were found. The percentage of chance coincidences is less than 1%. X-ray hardness ratios of well-known populations of objects were used to provide a crude representation of their X-ray spectrum and to make a preliminary diagnosis of the possible nature of unidentified X-ray sources. The results support the fact that the X-ray sky is largely dominated by Active Galactic Nuclei at high galactic latitudes ({pipe}b{pipe}≥10°). At low galactic latitudes ({pipe}b{pipe}≤10°) most of unidentified X-ray sources (~94%) lie at {pipe}b{pipe}≤2°. This result suggests that most of the unidentified sources found toward the Milky Way plane are galactic objects. Well-known and unidentified sources were classified in different tables with their corresponding radio/infrared and X-ray properties. These tables are intended as a useful tool for researchers interested in particular identifications. © 2010 Springer Science+Business Media B.V. |
| format |
JOUR |
| author |
Combi, J.A. Colombo, J.F.A. Pellizza, L. López-Santiago, J. Romero, G.E. Martí, J. Muñoz-Arjonilla, A.J. Sánchez-Ayaso, E. Luque-Escamilla, P.L. Sánchez-Sutil, J.R. |
| author_facet |
Combi, J.A. Colombo, J.F.A. Pellizza, L. López-Santiago, J. Romero, G.E. Martí, J. Muñoz-Arjonilla, A.J. Sánchez-Ayaso, E. Luque-Escamilla, P.L. Sánchez-Sutil, J.R. |
| author_sort |
Combi, J.A. |
| title |
A systematic cross-search for radio/infrared counterparts of XMM-Newton sources |
| title_short |
A systematic cross-search for radio/infrared counterparts of XMM-Newton sources |
| title_full |
A systematic cross-search for radio/infrared counterparts of XMM-Newton sources |
| title_fullStr |
A systematic cross-search for radio/infrared counterparts of XMM-Newton sources |
| title_full_unstemmed |
A systematic cross-search for radio/infrared counterparts of XMM-Newton sources |
| title_sort |
systematic cross-search for radio/infrared counterparts of xmm-newton sources |
| url |
http://hdl.handle.net/20.500.12110/paper_0004640X_v331_n1_p53_Combi |
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