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Lunar occultations for gamma-ray source measurementsThe 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.
Document ID
Document Type
Conference Paper
Koch, David G.
(NASA Ames Research Center Moffett Field, CA, United States)
Hughes, E. B.
(NASA Ames Research Center Moffett Field, CA, United States)
Nolan, Patrick L.
(Stanford University CA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Meeting Information
Meeting: Astrophysics from the Moon
Location: Annapolis, MD
Country: United States
Start Date: February 5, 1990
End Date: February 7, 1990
Sponsors: NASA
Accession Number
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