Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981rspta.301..607c&link_type=abstract
(Royal Society, Discussion on Gamma-Ray Astronomy, London, England, Nov. 27, 28, 1980.) Royal Society (London), Philosophical Tr
Astronomy and Astrophysics
Astronomy
2
Angular Resolution, Gamma Ray Telescopes, High Resolution, Imaging Techniques, Cos-B Satellite, Feasibility Analysis, Satellite-Borne Instruments, Technology Assessment
Scientific paper
Possibilities concerning the identification of sources of gamma-radiation with known astronomical objects are considered. The angular resolution of the COS-B telescope is typically + or - 5 deg for 100 MeV photons. But more precise estimates of the most likely location of gamma-ray sources have been made by applying image processing techniques. Nevertheless, the best error boxes include approximately 1000 stars having a magnitude m less than 15 and a much higher angular resolution is, therefore, required to make a unique identification possible. The value of applying coded aperture techniques in a high angular resolution telescope for X-ray astronomy has been demonstrated by Proctor et al. (1978). A practical telescope for astronomy at high energies has been described by Carter et al. (1980). At low energies, an imaging telescope could be constructed by making use of position-sensitive detectors initially developed for use in medical physics. By making use of the considered approaches, it appears feasible to raise the techniques of gamma-ray astronomy to a level comparable with those that exist at other wavelengths.
Carter J. N.
Dean Anthony J.
Ramsden David
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