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A search for the reported 400-keV gamma-ray line from Crab NebulaA balloon-borne large volume high resolution gamma-ray spectrometer which utilizes 40 cu cm Ge(Li) crystals was used June 10, 1974 to search for a 400-keV gamma-ray line from the Crab Nebula. Energy loss spectra in the 400-keV vicinity are compared with gamma-ray measurements of the same source which were reported by Leventhal et al. (1977). In contrast with the 1976 experimental results reported by Leventhal et al., a 400-keV line was not observed. Further, it is thought that the 1974 data contradict the measurement reported by Leventhal et al. if a constant source intensity is assumed.
Document ID
19780030395
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Ling, J. C.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Mahoney, W. A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Willett, J. B.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Jacobson, A. S.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 9, 2013
Publication Date
November 3, 1977
Publication Information
Publication: Nature
Volume: 270
Subject Category
Astrophysics
Accession Number
78A14304
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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