XEUS - The X-ray evolving Universe spectroscopy mission

A. N. Parmar*, G. Hasinger, M. Arnaud, X. Barcons, D. Barret, A. Blanchard, H. Böhringer, M. Cappi, A. Comastri, T. Courvoisier, A. C. Fabian, I. Georgantopoulos, R. Griffiths, N. Kawai, K. Koyama, K. Makishima, P. Malaguti, K. O. Mason, C. Motch, M. MendezT. Ohashi, F. Paerels, L. Piro, J. Schmitt, M. Van der Klis, M. Ward

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

5 Citations (Scopus)


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 6 m2 at 1 keV that will be expanded to 30 m2 following a visit to the ISS. The 1 keV spatial resolution is expected to be 2-5″ half-energy-width. XEUS will consist of separate detector and mirror spacecraft aligned by active control to provide a focal length of 50 m. 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 cm-2 s-1, around 200 times better than XMM-Newton, allowing XEUS to study the properties of the hot baryons and dark matter at high redshift.

Original languageEnglish
Title of host publicationProceedings Volume 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy
PublisherSPIE.Digital Library
Number of pages10
Publication statusPublished - 2002
Externally publishedYes
EventX-ray and Gamma-Ray telescopes and Instruments for Astronomy - Waikoloa, HI, United States
Duration: 24-Aug-200228-Aug-2002


ConferenceX-ray and Gamma-Ray telescopes and Instruments for Astronomy
Country/TerritoryUnited States
CityWaikoloa, HI


  • Cosmology
  • X-ray missions
  • X-ray spectroscopy
  • XEUS

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