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| Paper: |
Formation of Balmer Lines in Impulsively Heated Flare Atmosphere by Neutral Beams |
| Volume: |
454, The 3rd Hinode Science Meeting |
| Page: |
341 |
| Authors: |
Varady, M.; Kašparová, J.; Moravec, Z.; Karlický, M.; Heinzel, P. |
| Abstract: |
In the context of interpreting non-thermal hard X-ray
emission and γ lines emanating from the footpoints of flare loops, most
contemporary flare models assign a fundamental role during the flare energy
release, transport and deposition to the high energy non-thermal particle
beams. In this contribution we concentrate on modelling of the spectroscopic
properties of chromospheric flare emission in optical hydrogen lines
generated due to the bombardment of the chromosphere and photosphere by
neutral beams with power-law spectra. In order to obtain an estimate of
the neutral beam flare heating in the solar atmosphere we produced a simple
model describing the propagation and thermalisation of neutral beams. We
compare the neutral beam flare heating with the flare heating produced by
corresponding pure electron and proton beams. Further we compare the
contribution functions for Hα line obtained for neutral and electron
beam heating. |
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