Interstellar Cosmic Ray Spectra from the Nonthermal Radio Background from 0.4 to 400 MHz
Author/Creator
Author/Creator ORCID
Date
Type of Work
Department
Program
Citation of Original Publication
Goldstein, M. L., R. Ramaty, and L. A. Fisk. “Interstellar Cosmic Ray Spectra from the Nonthermal Radio Background from 0.4 to 400 MHz.” Physical Review Letters 24, no. 21 (May 25, 1970): 1193–96. https://doi.org/10.1103/PhysRevLett.24.1193.
Rights
This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain Mark 1.0
Public Domain Mark 1.0
Subjects
Abstract
We deduce the interstellar electron spectrum from the nonthermal radio background. From 200 MeV to a few GeV the spectral index is 1.8 and there is evidence for residual solar modulation. Above a few GeV, the spectrum is steeper and the intensity is similar to that observed at earth. A consistent modulation for electrons and protons of the same rigidity can be obtained by using the complete diffusion-convection energy-loss theory of solar modulation.