Some problems of the detection of the high energy gamma-radiation in space
Abstract
The flux of the diffuse gamma-radiation in the Galaxy was measured with the instruments on board of the satellites COS-B and Compton Gamma Ray Observatory (CGRO). It was shown that the spectrum of the diffuse gamma-rays N(E) in the energy range from very low energy (some tens keV) up to some GeV may be represented by the expression N(E) = AE^kdE, exponent k being equal to 1.9 /1/. In the energy range from some GeV up to about 30 GeV the exponent k changes and become equal to 2.4 - 2.6 /2/. There is no experimental data at higher energies though this problem is very important from the point of view of the dependence of the gamma-ray spectrum on the spectrum of the primary cosmic rays and possible existence of the neutralinos, hypothetical supersymmetrical particles, which are supposed to constitute dark matter in the Galaxy and create gamma-quanta in the process of annihilation.
- Publication:
-
Advances in Space Research
- Pub Date:
- May 1995
- DOI:
- 10.1016/0273-1177(94)00044-2
- Bibcode:
- 1995AdSpR..15e..93F
- Keywords:
-
- Albedo;
- Backscattering;
- Calorimeters;
- Cerenkov Counters;
- Diffuse Radiation;
- Gamma Ray Astronomy;
- Gamma Ray Telescopes;
- Gamma Rays;
- Scintillation Counters;
- Annihilation Reactions;
- Dark Matter;
- Gamma Ray Observatory;
- Primary Cosmic Rays;
- Spaceborne Astronomy;
- Astronomy