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Far and Extreme Ultraviolet Astronomy with Orfeus

Published online by Cambridge University Press:  12 April 2016

G. Krämer
Affiliation:
Astronomisches Institut, Waldhäuserstr. 64, 7400 Tübingen, F.R.G.
J. Barnstedt
Affiliation:
Astronomisches Institut, Waldhäuserstr. 64, 7400 Tübingen, F.R.G.
N. Eberhard
Affiliation:
Astronomisches Institut, Waldhäuserstr. 64, 7400 Tübingen, F.R.G.
M. Grewing
Affiliation:
Astronomisches Institut, Waldhäuserstr. 64, 7400 Tübingen, F.R.G.
W. Gringel
Affiliation:
Astronomisches Institut, Waldhäuserstr. 64, 7400 Tübingen, F.R.G.
C. Haas
Affiliation:
Astronomisches Institut, Waldhäuserstr. 64, 7400 Tübingen, F.R.G.
A. Kaelble
Affiliation:
Astronomisches Institut, Waldhäuserstr. 64, 7400 Tübingen, F.R.G.
N. Kappelmann
Affiliation:
Astronomisches Institut, Waldhäuserstr. 64, 7400 Tübingen, F.R.G.
J. Petrik
Affiliation:
Astronomisches Institut, Waldhäuserstr. 64, 7400 Tübingen, F.R.G.
I. Appenzeller
Affiliation:
Landessternwarte Heidelberg, Königstuhl, 6900 Heidelberg, F.R.G.
J. Krautter
Affiliation:
Landessternwarte Heidelberg, Königstuhl, 6900 Heidelberg, F.R.G.
H. Mandel
Affiliation:
Landessternwarte Heidelberg, Königstuhl, 6900 Heidelberg, F.R.G.
R. Östreicher
Affiliation:
Landessternwarte Heidelberg, Königstuhl, 6900 Heidelberg, F.R.G.
S. Bowyer
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA, 94720, U.S.A.
M. Hurwitz
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA, 94720, U.S.A.

Abstract

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ORFEUS (Orbiting and Retrievable Far and Extreme Ultraviolet Spectrometer) is a 1 m normal incidence telescope for spectroscopic investigations of cosmic sources in the far and extreme ultraviolet spectral range. The instrument will be integrated into the freeflyer platform ASTRO-SPAS. ORFEUS-SPAS is scheduled with STS ENDEAVOUR in September 1992. We describe the telescope with its two spectrometers and their capabilities i.e. spectral range, resolution and overall sensitivity. The main classes of objects to be observed with the instrument are discussed and two examples of simulated spectra for the white dwarf HZ43 and an O9-star in the LMC are shown.

Type
II. Future Missions
Copyright
Copyright © Kluwer 1990

References

Grewing, M., Krämer, G. et al.: 1990, in Malina, R.F. and Bowyer, S., ed(s)., Extreme Ultraviolet Astronomy, Pergamon Press, New York,Google Scholar
Hurwitz, M., Bowyer, S.: 1990, in Malina, R.F. and Bowyer, S., ed(s)., Extreme Ultraviolet Astronomy, Pergamon Press N.Y.,Google Scholar
Krämer, G. et al., 1988, ORFEUS: A 1 m EUV/FUV Telescope on the Space Platform ASTRO-SPAS, in A Decade of UV Astronomy with IUE ESA SP 281, Vol. 2, p. 333 Google Scholar
Hurwitz, M., Bowyer, S.: 1988, in, ed(s)., A Decade of UV Astronomy with IUE, ESA SP 281, Vol. 2, 329 Google Scholar
Appenzeller, I. et al.: 1988, A Decade of UV Astronomy with IUE, ESA-SP-281, Vol. 2, 337 Google Scholar