Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..47..415s&link_type=abstract
Astrophysics and Space Science, vol. 47, Apr. 1977, p. 415-421.
Astronomy and Astrophysics
Astronomy
8
Cosmic Rays, Electron Distribution, Galactic Radiation, Gamma Rays, Radiation Distribution, Spatial Distribution, Compton Effect, Electron Energy, Energy Spectra, X Ray Astronomy
Scientific paper
With the aid of empirical data concerning the latitudinal distribution of galactic gamma-rays, the contribution of inverse-Compton-scattered gamma-rays is calculated using various models concerning the distribution of high-energy cosmic-ray electrons perpendicular to the galactic plane. It is shown that gamma-ray astronomy of regions with vanishing stellar and interstellar matter densities at energies greater than 100 MeV provides instructive information on the cosmic-ray electron density. Evidence is found for the existence of a broad galactic electron disk with a total thickness of at least 6.4 kpc. The uncertainties of the cosmic-ray electron-spectrum measurements above 100 GeV imply an additional uncertainty of at least a factor of 6 in the inverse-Compton source function.
Schlickeiser Reinhard
Thielheim Klaus Oswald
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