The XMM-Newton serendipitous survey
We present the first results on the identifications of a medium sensitivity survey (X-ray flux limit 2 × 10-14 erg cm-2s-1 in the 0.5-4.5 keV band) at high galactic latitude (|b| > 20°) carried out with the XMM-Newton X-ray observatory within the AXIS observing programme. This study is being cond...
| Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2002 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/170200 |
| Acceso en línea: | http://hdl.handle.net/10261/170200 |
| Access Level: | acceso abierto |
| Palabra clave: | Galaxies: active X-ray general Galaxies, stars |
| Sumario: | We present the first results on the identifications of a medium sensitivity survey (X-ray flux limit 2 × 10-14 erg cm-2s-1 in the 0.5-4.5 keV band) at high galactic latitude (|b| > 20°) carried out with the XMM-Newton X-ray observatory within the AXIS observing programme. This study is being conducted as part of the XMM-Newton Survey Science Centre activities towards the identification of the sources in the X-ray serendipitous sky survey. The sample contains 29 X-ray sources in a solid angle of 0.26 deg2 (source density 113±21 sources deg-2), out of which 27 (93%) have been identified. The majority of the sources are broad-line AGN (19), followed by narrow emission line X-ray emitting galaxies (6, all of which turn out to be AGN), 1 nearby non-emission line galaxy (NGC 4291) and 1 active coronal star. Among the identified sources we find 2 broad-absorption line QSOs (z ∼ 1.8 and z ∼ 1.9), which constitute ∼10% of the AGN population at this flux level, similar to optically selected samples. Identifications of a further 10 X-ray sources fainter than our survey limit are also presented. |
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