XEUS - The X-ray Evolving Universe Spectroscopy Mission

Details XEUS - The X-ray Evolving Universe Spectroscopy Mission XEUS - The X-ray Evolving Universe Spectroscopy Mission

1999-11-29

arxiv.org/abs/astro-ph/9911494v1

Astronomy and Astrophysics

Astrophysics

8 pages. To appear in "Large scale structure in the X-Ray Universe", Santorini, Greece

Scientific paper

XEUS is under study by ESA as part of the Horizon 2000+ program to utilize the International Space Station (ISS) for astronomical applications. XEUS will be a long-term X-ray observatory with an initial mirror area of 6m2 at 1 keV that will be grown to 30m2 following a visit to the ISS. The 1 keV spatial resolution is expected to be 2-5'' HEW. XEUS will consist of separate detector and mirror spacecraft aligned by active control to provide a focal length of 50m. A new detector spacecraft, complete with the next generation of instruments, will also be added after visiting the ISS. The limiting sensitivity will then be ~4 10-18 erg/cm2/s - around 250 times better than XMM, allowing XEUS to study the properties of the hot baryons and dark matter at high redshift.

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