The relation between brightness fluctuations and polarization of solar metre-wave emission |
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Authors: | R A Duncan |
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Institution: | (1) Division of Radiophysics, CSIRO, P.O. Box 76, 2121 Epping, N.S.W., Australia |
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Abstract: | Solar 80 MHz emission recorded by the Culgoora radioheliograph over a number of years, no matter what its spectral type, has followed a persistent pattern. Emission with average polarization < 40%, even if bursty, shows constant polarization: the polarization remains weak during both lulls and bursts of brightness. By contrast, if emission with average polarization > 40% is bursty, it shows fluctuating polarization: the polarization decreases during the bursts. The effect is discussed in terms of streaming versus gyrating electrons. |
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