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- W207868552 abstract "A phenomenon observed on May 21, 1973 at the Institute of Terrestrial Magnetism, the Ionosphere, and the Propagation of Radio Waves, by means of spectrographs (45--90 and 140--180 MHz) and polarimeters (74 and 204 MHz), is analyzed. Against the background of a continuum storm, pulsations of the radio emission with characteristic duration 10--20 sec were observed for several hours. The pulsations exhibited a drift from low to high frequencies at 12--25 MHz/sec. The relative amplitude of the pulsations was more than 300% at 74 MHz and decreased monotonically with increasing frequency to 90% at 204 MHz. The circular polarization of the background of the continuum storm, corresponding to an ordinary wave, was 65--75%. The increase in the flux density at 74 MHz was accompanied by a decrease in the degree of polarization to 50%, while the weakening of the continuum was accompanied by an increase in the degree of polarization right up to 100%. The main features of the phenomenon are explained in the framework of a model in which the pulsations are attributed to the radio emission of electron streams ejected quasiperiodically from the neutral current sheet of the coronal helmet magnetic structure and propagating toward the solar surfacemore » at (5--10) x 10$sup 9$ cm/sec. (AIP)« less" @default.
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- W207868552 date "1975-09-01" @default.
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- W207868552 title "Pulsations of the continuum solar radio emission at meter wavelengths" @default.
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