Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...236..448w&link_type=abstract
Astrophysical Journal, Part 1, vol. 236, Mar. 1, 1980, p. 448-459.
Astronomy and Astrophysics
Astronomy
68
Cosmic Rays, Electron Spectroscopy, Galactic Radio Waves, Gamma Ray Astronomy, Interstellar Radiation, Radio Sources (Astronomy), Bremsstrahlung, Brightness Temperature, Nonthermal Radiation, Radiant Flux Density
Scientific paper
The paper examines the traditional derivation of the interstellar electron spectrum using the galactic nonthermal radio spectrum and new radio data. The radio spectrum derived in the polar directions is now used as a base for this derivation instead of the anticenter spectrum. The exponent is determined for the interstellar electron spectrum between 70 and 1200 MeV, and radio maps are used to predict the gamma-ray fluxes produced by the bremsstrahlung process expected from these electrons. The differences in the predicted and observed gamma-ray intensities in the galactic plane are small, but in the polar direction the predicted gamma-ray flux using radio data is six times larger than that actually observed.
Cane Hilary V.
Simpson G. A.
Webber William R.
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