COS-B observations of localised gamma-ray emission

Details COS-B observations of localised gamma-ray emission COS-B observations of localised gamma-ray emission

Jul 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977esasp.124...13h&link_type=abstract

In ESA Recent Advan. in Gamma-Ray Astronomy p 13-20 (SEE N78-11899 02-88)

Astronomy and Astrophysics

Astronomy

9

Catalogs (Publications), Cos-B Satellite, Galactic Radiation, Gamma Rays, Satellite Observation, Cosmic Rays, Emission, Radiation Sources, Spatial Distribution

Scientific paper

The ESA gamma ray satellite COS-B has completed a survey of the galactic plane. The long exposure time combined with the effective angular resolution of about 2.5 deg. (FWHM) for gamma rays above 100 MeV permits a detailed study of the spatial distribution of the radiation. In four observation periods a search for localized gamma ray emission was performed. Each of the regions studied exhibits a significant fine structure superimposed on a diffuse emission along the galactic plane. This fine structure is consistent with the presence of a large number of high-energy gamma ray sources. A first catalog, including 11 so far unidentified gamma ray sources, is presented. The latitude distribution of these sources indicates a galactic nature.

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