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Spectral properties from XMM-Newton observation of Chandra Deep Field South sources

Published online by Cambridge University Press:  12 May 2006

A. Streblyanska ,
J. Bergeron ,
H. Brunner ,
A. Finoguenov ,
G. Hasinger  and
V. Mainieri
A. Streblyanska
Affiliation:
Max-Planck-Institut für Extraterrestrische Physik, Giessenbach-Strasse Postfach 1312, D-85741 Garching, Germany email: alina@mpe.mpg.de
J. Bergeron
Affiliation:
Institut d'Astrophysique de Paris, CNRS, 98 bis Boulevard Arago, F-75014 Paris, France
H. Brunner
Affiliation:
Max-Planck-Institut für Extraterrestrische Physik, Giessenbach-Strasse Postfach 1312, D-85741 Garching, Germany email: alina@mpe.mpg.de
A. Finoguenov
Affiliation:
Max-Planck-Institut für Extraterrestrische Physik, Giessenbach-Strasse Postfach 1312, D-85741 Garching, Germany email: alina@mpe.mpg.de
G. Hasinger
Affiliation:
Max-Planck-Institut für Extraterrestrische Physik, Giessenbach-Strasse Postfach 1312, D-85741 Garching, Germany email: alina@mpe.mpg.de
V. Mainieri
Affiliation:
Max-Planck-Institut für Extraterrestrische Physik, Giessenbach-Strasse Postfach 1312, D-85741 Garching, Germany email: alina@mpe.mpg.de
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Abstract

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We present results of the X-ray spectral analysis of the $\sim$370 ksec deep survey obtained with XMM-Newton on the Chandra Deep Field South (CDFS). Using sample of 127 sources with redshift identifications and with a raw count limit of 100 (pn detector) we explored both the physical properties of individual sources, and the general properties of two AGN classes. The corresponding flux limits in the (0.5–2) and (2–10) keV bands are 1 $\times 10^{-16}$ and 9 $\times 10^{-16}$ erg cm$^{-2}$ s$^{-1}$, respectively. The average photon index is $\Gamma \sim$1.9 and $\Gamma \sim$1.8 for type-1 AGN and type-2 AGN, respectively. Although the properties of the spectra of more that 90% of AGN are in good agreement with the unified model, a fraction of ‘atypical’ objects (absorbed type-1 and unabsorbed type-2 AGN) was detected.

Keywords

Surveys – Galaxies: active – (Galaxies:) quasars: general – X-ray: galaxies – galaxies: nuclei– (Cosmology:) diffuse radiation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Symposium S230: Populations of High Energy Sources in Galaxies , August 2005 , pp. 450 - 454
Copyright
2006 International Astronomical Union