Solar proton flares with weak impulsive phases

Details Solar proton flares with weak impulsive phases Solar proton flares with weak impulsive phases

Jan 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...264..699c&link_type=abstract

Astrophysical Journal, Part 1, vol. 264, Jan. 15, 1983, p. 699-707.

Astronomy and Astrophysics

Astrophysics

39

Magnetic Effects, Particle Acceleration, Solar Flares, Solar Protons, Solar X-Rays, Radio Spectra, Solar Flux Density, Solar Magnetic Field, Spectral Energy Distribution, Stellar Mass Ejection

Scientific paper

The current picture of a proton flare includes a well-defined impulsive phase characterized by a prominent hard X-ray (or microwave) peak. Lin and Hudson have argued that the correlation between intense flare hard X-ray bursts and large proton events is evidence that the second stage of particle acceleration is fueled by energy originally contained in flash phase 10-100 keV electrons. In their examination of large, prompt, proton events occurring between 1965-1979, however, the authors found several events that originated in flares with relatively weak impulsive phases. Various lines of evidence indicate that these flares were associated with mass ejection events which appear to have been magnetically driven.

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