The number-intensity relation for galactic gamma-ray sources and the emission from the galactic disk

Details The number-intensity relation for galactic gamma-ray sources and the emission from the galactic disk The number-intensity relation for galactic gamma-ray sources and the emission from the galactic disk

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....81..218r&link_type=abstract

Astronomy and Astrophysics, vol. 81, no. 1-2, Jan. 1980, p. 218-222.

Astronomy and Astrophysics

Astronomy

10

Cosmic Rays, Galactic Radiation, Galactic Structure, Gamma Ray Astronomy, Milky Way Galaxy, Boundary Conditions, Boundary Value Problems, Emission Spectra, Interstellar Matter, Radiant Flux Density, Stellar Luminosity, Supernova Remnants

Scientific paper

The paper evaluates the contribution of unresolved gamma-ray sources to overall emission of the Galaxy starting from the data on the resolved ones listed in the 1st COS-B catalogue, covering up to 50 percent of the galactic plane. It is shown that the integral Log N (greater than S)-Log S graph of an homogeneous subject of 9 of the 13 COS-B sources gives an analytical proof of the galactic nature of gamma-ray sources and allows the setting of constraints on the luminosity function of the gamma-ray sources. It is also noted that the 'diffuse' gamma-ray emission of the galactic disk and its overall luminosity, when used as boundary conditions, makes it possible to put constraints on the galactocentric distribution of the gamma-ray sources. Finally, it is concluded that gamma-ray sources contribute at least 30 percent of the gamma-ray luminosity of the Galaxy, the limit obtained with a uniform distribution of sources.

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