| Abstract: | Measurements supplied by the Compton Gamma-Ray Observatory (CGRO) and other gamma-ray telescopes allow the analysis of a variety
of processes in galactic and metagalactic space. They are especially important for the problem of cosmic ray origin since
a significant part of the observed gamma-ray flux is generated by cosmic rays. Many aspects of this problem are still enigmatic.
Gamma-ray data give an opportunity to clarify some of them. We suggest the gradient test for the analysis of gamma-ray emissivity
in the galactic disk from which important parameters of cosmic ray propagation can be determined.
P. N. Lebedev Physical Institute, Moscow, Russia; Max-Planck-Institut für Extraterrestrische Physik, Garching, Germany. Published
from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 40, Nos. 1–2, pp. 57–85, January–February, 1997. |
