COS-B observations of high-energy gamma-ray emission from the Orion cloud complex.
Abstract
Emission of high-energy gamma rays (between 70 and 5000 MeV) has been observed from the direction of the Orion cloud complex by the COS-B satellite. The emission is resolved and the existence of structure is apparent within the excess with two maxima coinciding with L 1630 and L 1641, i.e. the northern and the southern major clouds in the complex. The flux is evaluated and, coupled with an emissivity value deduced for the same general region of the sky, yields a total mass for the complex well in agreement with independent radio astronomical evaluations.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- November 1980
- Bibcode:
- 1980A&A....91L...3C
- Keywords:
-
- Cos-B Satellite;
- Gamma Ray Astronomy;
- Molecular Clouds;
- Orion Nebula;
- Cosmic Rays;
- Galactic Radiation;
- Particle Energy;
- Astrophysics