Lunar occultations for gamma-ray source measurements

Details Lunar occultations for gamma-ray source measurements Lunar occultations for gamma-ray source measurements

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aipc..207..366k&link_type=abstract

IN: Astrophysics from the moon; Proceedings of the Workshop, Annapolis, MD, Feb. 5-7, 1990 (A91-56576 24-89). New York, American

Astronomy and Astrophysics

Astronomy

2

Gamma Ray Astronomy, Lunar Occultation, Background Radiation, Gamma Ray Observatory, Milky Way Galaxy

Scientific paper

The unambiguous association of discrete gamma-ray sources with objects radiating at other wavelengths, the separation of discrete sources from the extended emission within the Galaxy, the mapping of gamma-ray emission from nearby galaxies and the measurement of structure within a discrete source cannot presently be accomplished at gamma-ray energies. In the past, the detection processes used in high-energy gamma-ray astronomy have not allowed for good angular resolution. This problem can be overcome by placing gamma-ray detectors on the moon and using the horizon as an occulting edge to achieve arcsec resolution. For purposes of discussion, this concept is examined for gamma rays above 100 MeV for which pair production dominates the detection process and locally-generated nuclear gamma rays do not contribute to the background.

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