Radio emission, cosmic ray electrons, and the production of gamma-rays in the Galaxy

Abstract

view Abstract Citations (82) References (29) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Radio emission, cosmic ray electrons, and the production of gamma-rays in the Galaxy Webber, W. R. ; Simpson, G. A. ; Cane, H. V. Abstract 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. Publication: The Astrophysical Journal Pub Date: March 1980 DOI: 10.1086/157761 Bibcode: 1980ApJ...236..448W Keywords: Cosmic Rays; Electron Spectroscopy; Galactic Radio Waves; Gamma Ray Astronomy; Interstellar Radiation; Radio Sources (Astronomy); Bremsstrahlung; Brightness Temperature; Nonthermal Radiation; Radiant Flux Density; Space Radiation full text sources ADS |