Publication Date:
2019-07-13
Description:
A model for the emission of high energy ( 100 MeV) gamma rays from the galactic disk was developed and compared to recent SAS-2 observations. In the calculation, it is assumed that (1) the high energy galactic gamma rays result primarily from the interaction of cosmic rays with galactic matter; (2) on the basis of theoretical and experimental arguments the cosmic ray density is proportional to the matter density on the scale of galactic arms; and (3) the matter in the galaxy, atomic and molecular, is distributed in a spiral pattern consistent with density wave theory and the experimental data on the matter distribution.
Keywords:
SPACE RADIATION
Type:
NASA-TM-X-70818
,
X-662-75-2
,
High energy galactic gamma radiation from commic rays concentrated in spiral arms; Dec 01, 1974; Greenbelt, MD; United States
Format:
application/pdf
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