Manifestations of the 5-Min Photospheric Oscillations in the Solar Microwave Emission

Details Manifestations of the 5-Min Photospheric Oscillations in the Solar Microwave Emission Manifestations of the 5-Min Photospheric Oscillations in the Solar Microwave Emission

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003r%26qe...46..893z&link_type=abstract

Radiophysics and Quantum Electronics, v. 46, Issue 12, p. 893-903 (2003).

Physics

3

Scientific paper

Dynamic spectra of low-frequency (LF) modulation of microwave emission during solar flares are obtained. Observation data for five radio bursts at frequency 37 GHz recorded by a 14-m Metsäahovi observatory (Finland) radiotelescope in the period from 1990 to 1993 were used. Frequency modulation of the radio emission intensity with the average period 296+/-37 (1σ) s, which is close to the period of well-known photospheric oscillations, was observed. Possible mechanisms of photospheric oscillation influence on the regions of radio burst generation are discussed.

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