The effect of precipitation on diagnostics for electron trap models of solar hard X-ray bursts

Details The effect of precipitation on diagnostics for electron trap models of solar hard X-ray bursts The effect of precipitation on diagnostics for electron trap models of solar hard X-ray bursts

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...119..297m&link_type=abstract

Astronomy and Astrophysics, vol. 119, no. 2, Mar. 1983, p. 297-300. Research supported by the Centre National d'Etudes Spatiale

Astronomy and Astrophysics

Astrophysics

28

Electron Precipitation, Magnetically Trapped Particles, Solar Flares, Solar Flux, Solar X-Rays, Trapping, Chromosphere, Electron Energy, Mathematical Models, Particle Collisions, Solar Electrons, Time Dependence

Scientific paper

Some extended hard X-ray bursts exhibit increasing delays in peak times with photon energy. These delays have been interpreted in terms of the energy dependence of collisional decay time of energetic electrons in a magnetic trap and used to infer the trap density. This study considers the effect on such analyses of the inevitable collisional precipitation of electrons from the trap to the thick target chromosphere, which has been neglected previously. It is found that although precipitation does influence burst time profiles, in particular shortening burst decay times for a given trap density, it has very little effect on the relative delays of burst peak with energy. Consequently, values of trap density previously inferred neglecting precipitation should be essentially correct.

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