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- W1569248103 abstract "We present preliminary results from a XMM-Newton spectroscopic survey of hard (2 -10 keV) X-ray sources detected serendipitously in seven EPIC FOVs. All observations were performed during the performance/verif ication phase. The resulting sample consists of 39 sources with fluxes ranging from 3 to 80 $t imes$ 10$^{-14}$ erg cm$^{-2}$ s$^{-1}$ in the 2-10 keV band. Most of these sources (23 out of 39, i.e. 60%) are fainter than 8 $times $ 10$^{-14}$ erg cm$^{-2}$ s$^{-1}$. The sources have been selected in order to obtain detailed X-ray spectral inform ation, that are unprecedented at such low flux levels and for such a large sample. To date we also have optical counterparts for 23 out of 39 objects, with 0.0058 $leq$ $z$ $leq$ 1.187. About 70% of the sources have spectra well fitted with a simple power law model with Galactic absorption. For 9 objects (five of type 1, one of type 2 and three normal galaxies) absorption in excess to the Galactic one is required. Additional emission/absorption components (i.e. soft excess, warm absorber) are observed in 4 sources." @default.
- W1569248103 created "2016-06-24" @default.
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- W1569248103 date "2002-02-04" @default.
- W1569248103 modified "2023-09-27" @default.
- W1569248103 title "Spectral properties of faint hard X-ray selected sources" @default.
- W1569248103 hasPublicationYear "2002" @default.
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