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Proceedings Paper

The Dark Universe Observatory (DUO): telescope concept
Author(s): Peter Friedrich; Peter Predehl; Hans Bohringer; Robert Hartmann; Guenther Hasinger; Horst Hippmann; Guenther Kettenring; Walter Kink; Norbert Meidinger; Siegfried Mueller; Elmar Pfeffermann; Lothar Struder; Eckhard Kendziorra; Richard Griffiths; Robert Petre; Nicholas E. White; Steven P. Jordan; Wilhelm J. Egle
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Paper Abstract

What is the nature of the Dark Energy that is driving the universe apart? Clusters of galaxies offer an ideal probe of cosmology because they are the best tracers of Dark Matter and their distribution on very large scales which is dominated by the Dark Energy. DUO will measure 10.000 clusters of galaxies, the power spectrum of density fluctuations of clusters and their number density as a function of cosmic time. Although designed long before the existence of Dark Energy was claimed, the ABRIXAS type X-ray telescope turns out to be ideally suited for this task: DUO is, in essence, a re-flight of the ABRIXAS X-ray telescope which some modifications of the focal plane instrumentation. First of all, we will use new CCDs which are improved versions of the pn-CCDs successfully flown on XMM-Newton. A modular concept having seven individual cameras in the foci of the seven mirror systems allows us to design the orientation of the seven telescopes with respect to each other matching the scientific needs of the DUO mission. Details of the concept including mechanical, electrical and thermal aspects are given.

Paper Details

Date Published: 11 October 2004
PDF: 12 pages
Proc. SPIE 5488, UV and Gamma-Ray Space Telescope Systems, (11 October 2004); doi: 10.1117/12.552526
Show Author Affiliations
Peter Friedrich, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Peter Predehl, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Hans Bohringer, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Robert Hartmann, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Guenther Hasinger, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Horst Hippmann, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Guenther Kettenring, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Walter Kink, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Norbert Meidinger, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Siegfried Mueller, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Elmar Pfeffermann, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Lothar Struder, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Eckhard Kendziorra, Eberhard Karls Univ. Tuebingen (Germany)
Richard Griffiths, Carnegie Mellon Univ. (United States)
Robert Petre, NASA Goddard Space Flight Ctr. (United States)
Nicholas E. White, NASA Goddard Space Flight Ctr. (United States)
Steven P. Jordan, Ball Aerospace & Technologies Corp. (United States)
Wilhelm J. Egle, Carl Zeiss Laser Optics GmbH (Germany)


Published in SPIE Proceedings Vol. 5488:
UV and Gamma-Ray Space Telescope Systems
Guenther Hasinger; Martin J. L. Turner, Editor(s)

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