Gamma rays and the structure of the Galaxy

Details Gamma rays and the structure of the Galaxy Gamma rays and the structure of the Galaxy

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979svphu.128..313g&link_type=abstract

(Uspekhi Fizicheskikh Nauk, vol. 128, June 1979, p. 313-343.) Soviet Physics - Uspekhi, vol. 22, June 1979, p. 456-473. Transla

Astronomy and Astrophysics

Astronomy

Cosmic Rays, Galactic Radiation, Galactic Structure, Gamma Ray Astronomy, Crab Nebula, Galactic Nuclei, High Altitude Balloons, Infrared Astronomy, Interstellar Gas, Particle Diffusion, Pulsars, Radio Astronomy, Satellite Observation, Spatial Distribution

Scientific paper

A review of the observations and theoretical interpretations of galactic gamma rays in the energy region of 10 to the 7th to 10 to the 8th eV is presented. Galactic gamma rays consist of a diffuse component and radiation from discrete sources; the diffuse component formed by interaction of cosmic rays with interstellar gas reflects the large-scale structure of the Galaxy. The existence of a belt of molecular hydrogen has been shown at a distance of 4-8 kpc from the galactic center; a nonuniformity of the distribution of cosmic rays over the disk and in the halo of the Galaxy was found. Information on the small-scale structure of the Galaxy in the gamma region is provided by the discrete gamma-ray sources, which include pulsars in the Crab Nebula, Vela-X, and the region of the galactic center.

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