Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...204...88b&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 204, no. 1-2, Oct. 1988, p. 88-100. Research supported by Rijksuniversiteit te
Astronomy and Astrophysics
Astronomy
23
Astronomical Spectroscopy, Galactic Cosmic Rays, Gamma Ray Astronomy, Interstellar Matter, Continuous Spectra, H I Regions, Satellite Observation
Scientific paper
A spectral analysis of the galactic high-energy γ-ray emission (300 MeV - 6 GeV) is presented using the observations obtained with the COS-B satellite. Large-scale spectral variations are found and compared with recent results from a study of the galactic radio-continuum emission at 408 and 1420 MHz. The combination of the radio and γ-ray findings establishes that cosmic-ray spectral variations at GeV energies exist in the Galaxy, amounting to spectral-index differences as large as ≡0.5.
Bloemen Johannes Bernardus Gerhardus Maria
Reich Patricia
Reich Wolfgang
Schlickeiser Reinhard
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