Pulsations of type IV radio bursts as an indicator of protonability of solar flares

Details Pulsations of type IV radio bursts as an indicator of protonability of solar flares Pulsations of type IV radio bursts as an indicator of protonability of solar flares

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984soph...93..363z&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 93, July 1984, p. 363-377.

Physics

19

Coronal Loops, Pulsed Radiation, Solar Cosmic Rays, Solar Flares, Solar Protons, Type 4 Bursts, Correlation, Energy Spectra, Plasma Oscillations, Plasma Waves, Proton Flux Density, Pulse Duration, Solar Magnetic Field

Scientific paper

The analysis of observational data has shown that the duration of a pulse train in type IV radio bursts decreases with increasing hardness of the spectrum of high-energy protons and increases with decreasing proton fluxes from the Sun. It is shown that such a correlation corresponds to a magnetohydrodynamic model of pulsations and is inexplicable within the framework of a nonlinear periodical regime of plasma instabilities. The pulse train duration is determined by proton pitch-angle diffusion caused by Alfvén waves in coronal magnetic loops. A method of predicting solar proton hardness and proton fluxes using type IV radio burst pulsations is proposed.

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