An interpretation of the decay characteristics of solar hard X-ray bursts

Details An interpretation of the decay characteristics of solar hard X-ray bursts An interpretation of the decay characteristics of solar hard X-ray bursts

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981soph...71...55k&link_type=abstract

Solar Physics, vol. 71, May 1981, p. 55-64. 22j

Physics

10

Solar Physics, Solar X-Rays, X Ray Spectra, Bursts, Electron Energy, Electron Precipitation, Magnetically Trapped Particles, Solar Atmosphere, Whistlers

Scientific paper

The decay characteristics of solar hard X-ray bursts are analyzed, using a simple trap model in which nonthermal electrons trapped in a magnetic bottle precipitate into the lower chromosphere through the resonant scattering by whistlers. It is suggested that the precipitation rate of trapped electrons is proportional to the electron velocity (strong diffusion), and the X-ray spectrum in the decay phase can be expected to soften with time (Kane and Anderson, 1970), provided the precipitation dominates over collisional degradation. Its time behavior need not be attributed to injection or acceleration of energetic electrons. The trapping model and the system of loss-cone distribution is described in detail and the precipitation in strong diffusion is discussed.

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