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The Energy Spectrum of 0.16 to 3 MeV Electrons during Solar Quiet Time

Hurford, G. J. and Mewaldt, R. A. and Stone, E. C. (1973) The Energy Spectrum of 0.16 to 3 MeV Electrons during Solar Quiet Time. Proceedings of the 13th International Cosmic Ray Conference, 1 . pp. 324-329.

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New observations of the quiet-time energy spectrum of 0.16 to 3 MeV electrons have been made with teh Caltech Electron/Isotope Spetrometer which was launched on IMP-7 in September 1972. Recent measurements of quiet-time electrons in this energy range by other groups have resulted in spectra differing by more than an order of magnitude in intensity. We find a minimum quiet-time flux level similar to the lowest previously reported spectra and consistent with an extrapolation of the spectrum measured at higher energies. A galactic secondary source of knock-on electrons is consistent with our results provided there is negligible solar modulation. Although not required, other recently suggested sources may also contribute to the observed fluxes.

Item Type:Article
Related URLs:
URLURL TypeDescription
Mewaldt, R. A.0000-0003-2178-9111
Stone, E. C.0000-0002-2010-5462
Additional Information:Copyright University of Colorado. Dr. J. E. Lupton made significant contributions to this program, which was supported by NASA contract NAS5-11066 and grant NGR 05-002-160.
Group:Space Radiation Laboratory
Funding AgencyGrant Number
NASANGR 05-002-160
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Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1973-03
Record Number:CaltechAUTHORS:20140408-102714340
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:44754
Deposited By: SWORD User
Deposited On:08 Apr 2014 19:09
Last Modified:20 Feb 2020 14:33

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