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The TESIS project: Are type 2 QSO hidden in X-ray emitting EROs?

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arxiv astro-ph/0312098 v1 pith:QKZ27BFN submitted 2003-12-03 astro-ph

The TESIS project: Are type 2 QSO hidden in X-ray emitting EROs?

classification astro-ph
keywords erosx-rayanalysisfluxthemagnscandidatescomplete
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Here we present the results obtained from the analysis of 75 ksec of XMM-Newton observations of a sample of EROs selected from one MUNICS field (K'<19.5 mag). We find 6 EROs with a X-ray counterpart down to a 2--10 keV flux limit of ~10^{-15} cgs. For all of them the X-ray--to--optical flux ratios and the 2--10 keV luminosities suggest the presence of AGN. In particular, a complete X-ray spectral analysis shows that high luminosity, obscured AGNs (i.e. QSO2 candidates) are present in 3 of them.

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