Fluctuations of the degree of circular polarization of radio emission from a proton region on the sun
Abstract
Fluctuations of the degree of circulation polarization from a local radio source associated with the spot group of McMath Region 13043 were studied with the RT-22 telescope of the Crimean Observatory at wavelengths of 3.5, 2.5, and 1.9 cm. The fluctuations were analyzed by Fourier analysis and the maximum entropy method. Reliable periods in the variations were observed: 351-345 m, 330-220 m, and 160-60 m. Possible magnetic-field variations in the lower corona above an active region were investigated on the assumption of a gyroradiation mechanism of radio emission.
- Publication:
-
Izvestiya Ordena Trudovogo Krasnogo Znameni Krymskoj Astrofizicheskoj Observatorii
- Pub Date:
- 1984
- Bibcode:
- 1984IzKry..69..123A
- Keywords:
-
- Circular Polarization;
- Radio Astronomy;
- Solar Protons;
- Solar Radio Emission;
- Sunspots;
- Centimeter Waves;
- Field Strength;
- Maximum Entropy Method;
- Periodic Variations;
- Power Spectra;
- Solar Magnetic Field;
- Solar Physics