Computer Science
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010xmm..prop...62n&link_type=abstract
XMM-Newton Proposal ID #06714904
Computer Science
Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, Iras 00406-3127, Iras 00188-0856, Iras 12032+1707, Iras 16090-0139
Scientific paper
We propose the observation of a small sample of 4 ULIRGs harbouring very luminous AGN. According to our Spitzer-IRS spectral analysis these AGN components account for a significant/dominant fraction of the total luminosity and lie in the quasar range. Due to their different optical class, mid-IR spectrum and SB contamination, we expect XMM-Newton to reveal a various range of X-ray properties, column densities and covering factors of the AGN obscuring material. These new observations will make it possible to investigate the AGN/SB interplay and evolutionary trend at the highest luminosities. Also, the correlation between the mid-IR and hard X-rays spectral properties will be important for ULIRG-like systems at high redshift and for the contribution of type 2 QSOs to the X-ray background.
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