Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978mnras.182..103s&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 182, Jan. 1978, p. 103-109.
Astronomy and Astrophysics
Astronomy
11
Bremsstrahlung, Cosmic Rays, Galactic Radiation, Gamma Ray Astronomy, Nonthermal Radiation, Electron Energy, Energy Spectra, Interstellar Gas, Radiant Flux Density
Scientific paper
Production rates and their accuracies are investigated for gamma-ray production via nonthermal bremsstrahlung of cosmic-ray electrons with energies below 1 GeV in interstellar gas. The integral bremmstrahlung production rate is examined, and production rates are calculated for various estimates of the local differential cosmic-ray electron spectrum. It is found that the computed production rates differ by at least a factor of eight, depending on the choice of electron-spectrum parameters. The sum of the omnidirectional pionic and bremsstrahlung production rates per equivalent hydrogen atom at 100 MeV in the Galactic disk is estimated together with the local disk component of gamma-rays with energies greater than 100 MeV arising from neutral-pion decay and nonthermal electron bremsstrahlung. Consequences of the results for galactic and extragalactic gamma-ray astronomy are discussed.
Schlickeiser Reinhard
Thielheim Klaus Oswald
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