Physics
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985soph...96..331l&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 96, April 1985, p. 331-337. Previously announced in STAR as N84-18142.
Physics
16
Polarization (Waves), Solar Flares, Solar X-Rays, Bremsstrahlung, Electron Beams, Electrons, Plasma Interactions, Solar Magnetic Field
Scientific paper
Observations of polarization of moderately hard X-rays in solar flares are reviewed and compared with the predictions of recent detailed modeling of hard X-ray bremsstrahlung production by non-thermal electrons. The recent advances in the complexity of the modeling lead to substantially lower predicted polarizations than in earlier models and more fully highlight how various parameters play a role in determining the polarization of the radiation field. The new predicted polarizations are comparable to those predicted by thermal modeling of solar flare hard X-ray production, and both are in agreement with the observations. In the light of these results, new polarization observations with current generation instruments are proposed which could be used to discriminate between non-thermal and thermal models of hard X-ray production in solar flares.
Emslie Gordon A.
Leach Javier
Petrosian Vahe
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