a Chandra/xmm Attack on the Astrophysics of the Hard X-Ray Background.

Details a Chandra/xmm Attack on the Astrophysics of the Hard X-Ray Background. a Chandra/xmm Attack on the Astrophysics of the Hard X-Ray Background.

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1330m&link_type=abstract

Chandra Proposal ID #04900940

Astronomy and Astrophysics

Astrophysics

Chandra Proposal Id #04900940

Scientific paper

We request Chandra observations to provide ~1" positions for sources in a 200ks XMM survey and 0.6" positions for sources in a 700ks XMM survey. Over 400 X-ray sources will have high quality X-ray spectra and accurate identifications, even for optically very faint sources where identification is hard, allowing for evolutionary studies. The powerful combination of XMM spectra with CHANDRA positions, and extensive observations in other bands, enables us to understand the astrophysics of the hard X-ray background; ie do the contributors have absorbed, or intrinsically flat, spectra? how do QSO spectra evolve? what is the X-ray emission mechanism of optically inactive galaxies and of narrow emission line galaxies? which non-gravitational source heated galaxy groups?

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