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Radio Evidence on the Particle Distribution Functions in the Corona following Flares

Published online by Cambridge University Press:  25 April 2016

G. A. Dulk
Affiliation:
Division of Radiophysics, CSIRO, Sydney and Department of Astro-Geophysics, University of Colorado, Boulder, Colorado
D. B. Melrose
Affiliation:
Department of Theoretical Physics, Australian National University, Canberra
S. F. Smerd
Affiliation:
Division of Radiophysics, CSIRO, Sydney

Extract

In this paper we summarize the results of radio studies of the distribution functions (number, energy distribution and pitch angle distribution) of the energetic particles that are produced at the time of solar flares. We consider the clues and constraints they impose on the mechanisms of acceleration, bearing in mind that radio evidence implies that there are at least two stages of acceleration in many flares.

In the following sections we discuss the distribution functions of the particles resulting from (a) first phase acceleration, (b) first and/or second phase and (c) second phase acceleration. Table I summarizes the results.

Type
Research Article
Copyright
Copyright © Astronomical Society of Australia 1971

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