Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aiaa.meetq....t&link_type=abstract
American Institute of Aeronautics and Astronautics, Aerospace Sciences Meeting, 21st, Reno, NV, Jan. 10-13, 1983, 6 p.
Astronomy and Astrophysics
Astronomy
Cosmic X Rays, Optical Equipment, Pinhole Cameras, Pinhole Occulter Facility, Solar Instruments, Telescopes, X Ray Astronomy, Active Control, Angular Resolution, High Resolution, Occultation, Solar Corona, Solar Flares, Space Shuttle Payloads, Spaceborne Astronomy
Scientific paper
The scientific justifications for high-resolution hard X-ray astronomy are reviewed, and a scheme for making such observations from the Space Shuttle payload bay is presented. High-resolution X-ray observations at photon energies above 10 keV are important for the understanding of the physics of solar flares, coronal disturbances related to flares, and corona fine structure, as well as nonsolar X-ray sources. In order to study these phenomena, concepts have been developed for the Shuttle Pinhole/Occulter Facility (P/OF), an instrument based on the principles of the pinhole camera which will have an angular resolution of 0.2 arc sec. The proposed P/OF configuration consists of four separate telescopes or position-sensitive counters mounted on a detector plane and looking toward the target through separate portions of an aperture mask (occulter plane). The two planes are separated by a self-deployable 50-m boom, which is to be made essentially rigid by direct control of its lowest normal modes.
Dabbs J.
Greene Michael
Hudson Hugh H.
Tandberg-Hanssen Einar
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