On the polarization and anisotropy of solar X-radiation during flares |
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Authors: | Gerhard Elwert Eberhard Haug |
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Institution: | (1) Lehrstuhl für Theoretische Astrophysik der Universität Tübingen, Tübingen, Germany |
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Abstract: | Starting from the idea that the electrons accelerated during a solar flare have originally a preferred direction, the angular distribution and the polarization of bremsstrahlung below 10 Å is calculated taking into account the influence of the magnetic field. The energy distribution of the nonthermal electrons is based on X-ray spectra measured by the Leicester group during flares in 1962 and 1967. In addition to the case of a fixed angle between the electron velocity and the magnetic field, an angular distribution of the form sin
n
is considered. The results may be used to test flare models. Recent measurements of the polarization of solar X-radiation yield the expected order of magnitude.Paper presented to the Int. Symp. on Solar-Terr. Phys., Leningrad, May 1970. |
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