AAS 207th Meeting, 8-12 January 2006
Session 20 X-ray Studies of AGN and the High Energy Cosmic Background
Poster, Monday, 9:20am-7:00pm, January 9, 2006, Exhibit Hall

Previous   |   Session 20   |   Next  |   Author Index   |   Block Schedule

[20.08] Unraveling the X-Ray Background with EXIST

Y. Shaham, P. Coppi (Yale University), H.W. Lee (Sejong University), G. Madejski, R.D. Blandford (SLAC/KIPAC), EXIST Science Team

Using improved calculations for the possible spectra of obscured AGN and their host galaxies, we critically examine current models for the X-ray background. Given the latest Chandra and XMM X-ray survey results, we then explore the major uncertainties left in our understanding of this background, in particular in the fraction of highly obscured AGN and in the contributions from alternate source populations such as X-ray emitting blazars. We discuss how an imaging hard X-ray mission such EXIST mission will remove these ambiguities.

Previous   |   Session 20   |   Next

Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.