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Title

The XMM-Newton serendipitous survey

Other TitlesII. First results from the AXIS high galactic latitude medium sensitivity survey
AuthorsBarcons, Xavier CSIC ORCID ; Carrera, Francisco J. CSIC ORCID CVN ; Watson, M. G.; McMahon, Richard G.; Aschenbach, B.; Freyberg, M. J.; Page, K.; Page, M. J.; Roberts, T. P.; Turner, M. J. L.; Barret, Didier; Brunner, H.; Ceballos, María Teresa CSIC ORCID ; Della Ceca, R.; Guillout, P.; Hasinger, Günther; Maccacaro, T.; Mateos, Silvia CSIC ORCID ; Motch, C.; Negueruela, I.; Osborne, J. P.; Pérez-Fournon, I.; Schwope, A.; Severgnini, P.; Szokoly, G.; Webb, N. A.; Wheatley, P. J.; Worrall, D. M.
KeywordsGalaxies: active
X-rays: general
Galaxies, stars
Issue Date2002
PublisherEDP Sciences
CitationAstronomy and Astrophysics 382(2): 522-536 (2002)
AbstractWe 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.
Publisher version (URL)https://doi.org/10.1051/0004-6361:20011615
URIhttp://hdl.handle.net/10261/170200
DOIhttp://dx.doi.org/10.1051/0004-6361:20011615
Identifiersdoi: 10.1051/0004-6361:20011615
issn: 0004-6361
e-issn: 1432-0746
Appears in Collections:(IFCA) Artículos
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