2006
DOI: 10.1111/j.1365-2966.2006.10027.x
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Mining for normal galaxies in the first XMM-Newton Serendipitous Source Catalog

Abstract: This paper uses the first XMM–Newton Serendipitous Source Catalog compiled by the XMM–Newton Science Centre to identify low‐z X‐ray selected normal galaxy candidates. Our sample covers a total area of ≈6 deg2 to the 0.5–2 keV limit ≈10−15 erg s−1 cm−2. A total of 23 sources are selected on the basis of low X‐ray to optical flux ratio log fX/fopt < −2, soft X‐ray spectral properties and optical spectra, when available, consistent with stellar formation rather than active galactic nucleus (AGN) processes. This s… Show more

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Cited by 24 publications
(69 citation statements)
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References 56 publications
(120 reference statements)
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“…Our data points are plotted as open circles in Fig. 4, while crosses represent the combined sample of the 1XMM survey of Georgakakis et al (2006) and the NHS survey (Georgakakis et al 2004). …”
Section: Starburst Diagnosticsmentioning
confidence: 99%
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“…Our data points are plotted as open circles in Fig. 4, while crosses represent the combined sample of the 1XMM survey of Georgakakis et al (2006) and the NHS survey (Georgakakis et al 2004). …”
Section: Starburst Diagnosticsmentioning
confidence: 99%
“…Moreover, AGN are usually confined in the area −1 < log( f x / f o ) < 1 (Stocke et al 1991;Lehmann et al 2001). For the purposes of this study we selected as normal galaxy candidates sources having log( f x / f o ) < −2 (see also Georgakakis et al 2004;Georgantopoulos et al 2005;Georgakakis et al 2006). This is a conservative limit and it might introduce a bias against massive ellipticals and powerful starbursts (Tzanavaris et al 2006;Georgakakis et al 2007).…”
Section: Sample Selectionmentioning
confidence: 99%
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