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Interstellar Electron Spectrum from the Galactic Non-Thermal Radio Emission

Cummings, A. C. and Stone, E. C. and Vogt, R. E. (1973) Interstellar Electron Spectrum from the Galactic Non-Thermal Radio Emission. In: Proceedings of the 13th International Cosmic Ray Conference. Colorado Associated University Press , Boulder, CO, pp. 335-339.

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A range of interstellar electron spectra at energies between 100 MeV and 5 GeV has been derived from an analysis of the observed galactic non-thermal radio spectrum and from consideration of the existing uncertainties in the other relevant physical parameters of the galaxy. We find that for energies larger than ~ 300 MeV the electron spectrum is uncertain to a factor of 4 due to uncertainties in the galactic magnetic field strength and the total line-of-sight emission length. The uncertainty in the electron spectrum increases towards lower energies, exceeding a factor of 50 near 100 MeV, primarily due to uncertainties in the galactic parameters affecting interstellar radio absorption.

Item Type:Book Section
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URLURL TypeDescription
Cummings, A. C.0000-0002-3840-7696
Stone, E. C.0000-0002-2010-5462
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Additional Information:© 1973 University of Colorado. Provided by the NASA Astrophysics Data System. This work supported by the National Aeronautics and Space Administration, Grant NGR 05-002-160. One of us (Stone) was an Alfred P. Sloan research fellow, and another (Cummings) was a NASA Trainee during this work.
Group:Space Radiation Laboratory
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NASANGR 05-002-160
Alfred P. Sloan FoundationUNSPECIFIED
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Space Radiation Laboratory1973-08
Record Number:CaltechAUTHORS:20140409-090427593
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ID Code:44808
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Deposited On:14 Apr 2014 23:02
Last Modified:20 Feb 2020 14:33

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