Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..599..750m&link_type=abstract
X-RAY ASTRONOMY: Stellar Endpoints,AGN, and the Diffuse X-ray Background. Edited by Nicholas E. White, Giuseppe Malaguti, and G
Astronomy and Astrophysics
Astronomy
Charge-Coupled Devices, Image Detectors, And Ir Detector Arrays, X-Ray Sources, X-Ray Bursts, Background Radiations
Scientific paper
The European Space Agency's (ESA) X-rays Multi Mirrors (XMM) observatory satellite is about to be launched. Its three CCD cameras (EPIC instrument) and two CCD spectroscopes (RGS instrument) will allow high troughput and high resolution spectro-imaging. Among the various goals of this mission, measuring the X-rays coming from clusters of galaxies (bremsstrahlung light) will constrain our large scale matter distribution models. Inside a cluster, X-rays brightness variations will leave clues regarding matter dynamics. Given clusters megaparsecs large and up to one gigaparsec away, one obviously needs to resolve such objects at far better than 6 arcmins. EPIC instrument has been designed to reach a few arcsecs. Anyway, one has to care for good flat field and quantum efficiency (QE) calibrations. In this paper, we will briefly describe the Orsay synchrotron facility were such calibrations were undergone in 1998, the latest results concerning EPIC QE measurements, and then summarize our involvement in clusters of galaxies and X-rays background observations. .
Bernard J.-Ph.
Marty Philippe
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