The Dark Universe Observatory (DUO): telescope concept

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

doi:10.1117/12.552526

11 October 2004 The Dark Universe Observatory (DUO): telescope concept

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

Author Affiliations +

Proceedings Volume 5488, UV and Gamma-Ray Space Telescope Systems; (2004) https://doi.org/10.1117/12.552526
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

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.

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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, and Wilhelm J. Egle "The Dark Universe Observatory (DUO): telescope concept", Proc. SPIE 5488, UV and Gamma-Ray Space Telescope Systems, (11 October 2004); https://doi.org/10.1117/12.552526

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KEYWORDS

Cameras

Mirrors

Charge-coupled devices

Telescopes

X-rays

CCD cameras

Sensors

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