Polarized solar type III bursts between 2.3 and 4.9 MHz

Details Polarized solar type III bursts between 2.3 and 4.9 MHz Polarized solar type III bursts between 2.3 and 4.9 MHz

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....91..311h&link_type=abstract

Astronomy and Astrophysics, vol. 91, no. 3, Nov. 1980, p. 311-318.

Astronomy and Astrophysics

Astronomy

5

Circular Polarization, High Frequencies, Solar Magnetic Field, Spaceborne Astronomy, Type 3 Bursts, Solar Corona, Solar Spectra, Spectrum Analysis

Scientific paper

A method is proposed for determining the circular polarization of solar radio bursts recorded at low frequencies by means of a swept-frequency radio spectrograph aboard a spacecraft. The method is based on the analysis of changes in the dynamic spectra of observed bursts caused by the magnetoactive ionospheric plasma. First observations of circularly polarized type III bursts at frequencies between 2.3 and 4.9 MHz are reported. A lower limit of magnetic field strength of 0.0012 G was calculated for the burst generation region at the 4-MHz coronal level.

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