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Proceedings Paper

Optical/UV monitor telescope on the x-ray multimirror observatory
Author(s): Keith O. Mason; Mark S. Cropper; John L. A. Fordham; France Anne Cordova; David T. Leisawitz; David H. Lumb; Cheng Ho; Elio Antonello; Claude A. J. Jamar
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Paper Abstract

The Optical/UV Monitor Telescope (XMM-OM) on the ESA X-ray Cornerstone mission XMM is designed to provide simultaneous optical and UV coverage of all sources viewed by the observatory in the X-ray band. The instrument consists of a 30 cm Ritchey-Chretien telescope. This feeds a compact photon counting detector that operates in the blue part of the optical spectrum and the UV (1600 - 5500 angstroms), and simultaneously a cooled CCD detector which registers the red light (5500 - 10000 angstroms). The XMM-OM will have a field of view of approximately 25 arcmin diameter, matching that of the X-ray cameras on XMM, and a spatial pixel size in normal operation of 1 arcsec in the blue, and about 1.8 arcsec in the red. Because of the low sky background in space, the sensitivity of the XMM- OM for detecting stars will be comparable to that of a 4-m telescope at the Earth's surface, and it should detect a B equals 24th magnitude star with a photon counting detector in a 1000 s observation using unfiltered light.

Paper Details

Date Published: 1 November 1993
PDF: 12 pages
Proc. SPIE 1945, Space Astronomical Telescopes and Instruments II, (1 November 1993); doi: 10.1117/12.158758
Show Author Affiliations
Keith O. Mason, Mullard Space Science Lab. (United Kingdom)
Mark S. Cropper, Mullard Space Science Lab. (United Kingdom)
John L. A. Fordham, Univ. College London (United Kingdom)
France Anne Cordova, The Pennsylvania State Univ. (United States)
David T. Leisawitz, The Pennsylvania State Univ. (United States)
David H. Lumb, The Pennsylvania State Univ. (United States)
Cheng Ho, Los Alamos National Lab. (United States)
Elio Antonello, Osservatorio Astronomico di Brera (Italy)
Claude A. J. Jamar, IAL-Space (Belgium)

Published in SPIE Proceedings Vol. 1945:
Space Astronomical Telescopes and Instruments II
Pierre Y. Bely; James B. Breckinridge, Editor(s)

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