SAS-2 observations of gamma-rays from the galactic plane.
Abstract
Preliminary data are given for the SAS-2 high energy galactic gamma ray observation. These data include both latitude and longitude distributions. The longitude distribution shows a high density region. The latitude distributions toward the center and the anti-center are markedly different, the former showing a two-component structure of half-widths of approximately 3 and 6 deg. The energy spectrum in the range 35 to 200 MeV is hard, consistent with cosmic ray interactions with interstellar matter, including neutral pions decay and emission from energetic electron interactions. The data is consistent with an interpretation in terms of the confinement of the cosmic rays in the spiral arms.
- Publication:
-
The Context and Status of Gamma-Ray Astronomy
- Pub Date:
- November 1974
- Bibcode:
- 1974csgr.conf..201T
- Keywords:
-
- Cosmic Rays;
- Galactic Radiation;
- Gamma Rays;
- Sas;
- Spatial Distribution;
- Background Radiation;
- Diffuse Radiation;
- Energy Spectra;
- Latitude;
- Longitude;
- Pions;
- Satellite Observation;
- Instrumentation and Photography