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Gamma ray lines from interstellar grainsThe existence of very narrow (FWHM or approximately = 5 KeV) gamma ray line emission from interstellar grains is pointed out. The prime candidate for detection is the line at 6.129 Mev from O-16, but other very narrow lines could also be detected at 0.847, 1.369, 1.634, 1.779 and 2.313 Mev from Fe-56, Mg-24, Ne-20, Si-28 and N-14. Measurements of this line emission can provide information on the composition, size and spatial distribution of interstellar grains.
Document ID
19760026029
Acquisition Source
Legacy CDMS
Document Type
Preprint (Draft being sent to journal)
Authors
Lingenfelter, R. E. (Calif. Univ. Los Angeles, United States)
Ramaty, R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
September 3, 2013
Publication Date
August 1, 1976
Subject Category
Space Radiation
Report/Patent Number
NASA-TM-X-71191
X-660-76-184
Report Number: NASA-TM-X-71191
Report Number: X-660-76-184
Accession Number
76N33117
Funding Number(s)
CONTRACT_GRANT: NSF AST-67-08178
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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