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Proceedings Paper

Infrared straylight measurements of the ISO telescope
Author(s): Ulrich Klaas; Dietrich Lemke; T. Kranz; Rene J. Laureijs; Christoph Leinert; Josef Schubert; Manfred Stickel; L. Viktor Toth
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Paper Abstract

Measurements were performed to verify the straylight suppression in the IR Space Observatory telescope using the ISOPHOT instrument. These test comprised the near-field straylight by bright stars and planets as well as the far- field straylight by the Sun, the Earth, and the Moon. No significant straylight above the specifications reflecting the astronomical needs for low surface brightness absolute sky measurements could be detected at 25 and 170 micrometers . In some cases comparison to preflight straylight simultaneous were possible. The consistency of the predictions from the models with the measurement results confirms the reasonable assumptions made for the simulations. This will allow to further optimize the telescope design for future low background IR space telescopes.

Paper Details

Date Published: 21 August 1998
PDF: 9 pages
Proc. SPIE 3354, Infrared Astronomical Instrumentation, (21 August 1998); doi: 10.1117/12.317222
Show Author Affiliations
Ulrich Klaas, Max-Planck-Institut fuer Astronomie (Germany) and ISO Science Operations Ctr. (Germany)
Dietrich Lemke, Max-Planck-Institut fuer Astronomie (Germany)
T. Kranz, Max-Planck-Institut fuer Astronomie (Germany)
Rene J. Laureijs, ISO Science Operations Ctr. (Spain)
Christoph Leinert, Max-Planck-Institut fuer Astronomie (Germany)
Josef Schubert, Max-Planck-Institut fuer Astronomie (Germany)
Manfred Stickel, Max-Planck-Institut fuer Astronomie (Germany)
L. Viktor Toth, Max-Planck-Institut fuer Astronomie (Germany)

Published in SPIE Proceedings Vol. 3354:
Infrared Astronomical Instrumentation
Albert M. Fowler, Editor(s)

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