Gamma radiation and photospheric white-light flare continuum

Details Gamma radiation and photospheric white-light flare continuum Gamma radiation and photospheric white-light flare continuum

Feb 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982soph...76...45h&link_type=abstract

Solar Physics, vol. 76, Feb. 1982, p. 45-61.

Astronomy and Astrophysics

Astronomy

14

Gamma Ray Astronomy, Photosphere, Solar Atmosphere, Solar Flares, Solar Protons, Solar Radiation, Atmospheric Heating, Atmospheric Models, Energy Spectra, Particle Precipitation, Solar X-Rays

Scientific paper

It is noted that recent gamma-ray observations of solar flares have provided a better means for estimating the heating of the solar atmosphere by energetic protons. This type of heating has been suggested as the explanation of the continuum emission of the white-light flare. The effects on the photosphere of high-energy particles capable of producing the intense gamma-ray emission observed in the flare of July 11, 1978, are analyzed. A simple energy-balance argument is used, and hydrogen ionization is taken into account. It is found that energy deposition increases with height for the inferred proton spectra and is not strongly dependent upon the assumed angle of incidence. At the top of the photosphere, the computed energy inputs fall in the range 10-100 ergs/cu cm-s.

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