Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979spie..183..188g&link_type=abstract
In: Space optics; Proceedings of the Seminar, Huntsville, Ala., May 22-24, 1979. (A80-17432 05-89) Bellingham, Wash., Society of
Astronomy and Astrophysics
Astronomy
Arrays, Astronomical Observatories, Spaceborne Telescopes, Angular Resolution, Celestial Bodies, Coherent Light, Focal Plane Devices, High Resolution, Optical Properties, X Ray Astronomy, X Ray Binaries
Scientific paper
The paper examines the feasibility of a coherent optical telescope array operated as a free-flying satellite, and capable of observing faint astronomical sources with very high angular resolution. This telescope array is analogous to the large radio astronomy arrays and very long baseline interferometers. A prototype instrument is discussed which comprises four mirrors on a 10-m baseline which can operate from the UV to the near-IR with one-dimensional resolution of 0.006 arcsec in the visible and achieve a faint object limit of about +25m in the visual range. The requirements of primary optics, the path length interferometer, the path length control, the aspect sensing system, the focal plane detectors, and pointing stability are described; it is concluded that many astronomical objects which could be studied with milliarsec resolution include Seyfert nuclei, quasars, globular clusters, X-ray binaries, and planetary satellites.
Gursky Herbert
Traub Wesley A.
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