X-ray spectral analysis of C-COSMOS sources

Details X-ray spectral analysis of C-COSMOS sources X-ray spectral analysis of C-COSMOS sources

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1248..461l&link_type=abstract

X-RAY ASTRONOMY 2009; PRESENT STATUS, MULTI-WAVELENGTH APPROACH AND FUTURE PERSPECTIVES: Proceedings of the International Confer

Computer Science

Databases

X-Ray Spectroscopy, Sky Surveys, Galactic Nuclei, Telescopes, Spectroscopy And Spectrophotometry, Astronomical Catalogs, Atlases, Sky Surveys, Databases, Retrieval Systems, Archives, Etc., Galactic Nuclei, Circumnuclear Matter, And Bulges, Astrometric And Interferometric Instruments

Scientific paper

We present a detailed X-ray spectral analysis of 401 bright sources in the Chandra-COSMOS catalogue with >80 net counts in the 0.5-7 keV band. For 294 sources, with available XMM-Newton spectra with >80 net counts, we performed an indipendent spectral fit of XMM-Newton data, in order to compare the results and look for variability of fit parameters. Finally we performed the simultaneous fit of Chandra and XMM-Newton spectra. The main results concern the distribution of photon index Γ, the nature of the population of sources classified as passive galaxies from the optical/IR SED, but hosting an obscured AGN, and the mismatch between Chandra and XMM-Newton determination of column density.

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