| dc.creator | Combi, Jorge Ariel | |
| dc.creator | Albacete Colombo, Juan Facundo | |
| dc.creator | Pellizza, Leonardo J. | |
| dc.creator | Lopez-Santiago, Javier | |
| dc.creator | Romero, Gustavo Esteban | |
| dc.creator | Martí, Josep | |
| dc.creator | Muñoz-Arjonilla, A. J. | |
| dc.creator | Sánchez-Ayaso, E. | |
| dc.creator | Luque-Escamilla, Pedro L. | |
| dc.creator | Sánchez-Sutil, Juan R. | |
| dc.date | 2011 | |
| dc.date | 2021-12-09T17:24:19Z | |
| dc.date.accessioned | 2023-07-15T04:17:48Z | |
| dc.date.available | 2023-07-15T04:17:48Z | |
| dc.identifier | http://sedici.unlp.edu.ar/handle/10915/129350 | |
| dc.identifier | issn:0004-640X | |
| dc.identifier | issn:1572-946X | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7469004 | |
| dc.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 (|b|≥10°). At low galactic latitudes (|b|≤10°) most of unidentified X-ray sources (∼94%) lie at |b|≤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. | |
| dc.description | Facultad de Ciencias Astronómicas y Geofísicas | |
| dc.description | Instituto Argentino de Radioastronomía | |
| dc.format | application/pdf | |
| dc.format | 53-61 | |
| dc.language | en | |
| dc.rights | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
| dc.rights | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
| dc.subject | Ciencias Astronómicas | |
| dc.subject | Catalogs | |
| dc.subject | Methods: statistical | |
| dc.subject | X-rays: general | |
| dc.subject | Radio continuum: general | |
| dc.subject | Infrared: general | |
| dc.subject | Surveys | |
| dc.title | A systematic cross-search for radio/infrared counterparts of XMM-Newton sources | |
| dc.type | Articulo | |
| dc.type | Preprint | |
