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Spectra and positions of galactic gamma-ray sourcesThe UCSD/MIT Hard X-Ray and Low Energy Gamma-Ray Experiment aboard HEAO-1 scanned the galactic center region during three epochs in 1977 and 1978 from 13 to 180 keV. The results are presented from the scanning epoch of 1978 September. Twenty-two known 2 to 10 keV source positions were necessary for an acceptable fit to the data. The spectra of the 16 strongest, least confused sources are all consistent with power laws with photon spectral indices ranging from 2.1 to 7.2. Acceptable fits to thermal bremsstrahlung models are also possible for most sources. No one source in this survey can be extrapolated to higher energy to match the intensity of the gamma-ray continuum as measured by HEAO-1 large field of view detectors, which implies that the continuum is a composite of contributions from a number of sources.
Document ID
19850025650
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Knight, F. K.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Matteson, J. L.
(California Univ. San Diego, La Jolla, United States)
Jung, G. V.
(California Univ. San Diego, La Jolla, United States)
Rothschild, R. E.
(California Univ. San Diego, La Jolla, United States)
Date Acquired
August 12, 2013
Publication Date
August 1, 1985
Publication Information
Publication: 19th Intern. Cosmic Ray Conf - Vol. 1
Subject Category
Space Radiation
Report/Patent Number
OG-2.5-7
Report Number: OG-2.5-7
Accession Number
85N33963
Funding Number(s)
CONTRACT_GRANT: NAG8-499
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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