Observations and analysis of the radio emission pulsations of coronal holes at wavelengths of 2.2, 2.8, and 3.5 CM

Physics

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Solar Corona, Coronal Holes, Solar Oscillations, Solar Radio Emission, Plasma Oscillations, Solar Physics

Scientific paper

Results of observations of two coronal holes during 23-28 April 1993 at the 22-m radio telescope of the Crimean Astrophysical Observatory are presented. Identification of coronal holes has been made by means of the data obtained by the Japanese YOHKOH mission. An intercomparison analysis of harmonic components of radio pulsations in the period range 20-80 rain is made using the data of differential measurements of solar radio emission pulsations at a wavelength of 2.25 cm. A set of harmonic components is approximated by a power function. In application to the general structure of the sun, these periods are attributed to the periods of synchronizing processes related to the rotation of the solar core, radiative zone, photosphere (chromosphere), and corona.

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