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Relationship of type III radio bursts with quasi-periodic pulsations in a solar flare View all abstracts by submitter

Elena Kupriyanova   Submitted: 2016-08-04 06:30

We studied a solar flare with pronounced quasi-periodic pulsations detected in the microwave, X-ray, and radio bands. We used the methods of correlation, Fourier, and wavelet analyses to examine the temporal fine structures and relationships between the time profiles in each wave band. We found that the time profiles of the microwaves, hard X-rays and type III radio bursts vary quasi-periodically with the common period of 40-50 s. The average amplitude of the variations is high, above 30% of the background flux level and reaching 80% after the flare maximum. We did not find the periodicity in either the thermal X-ray flux component or source size dynamics. Our findings indicate that the detected periodicity is likely to be associated with periodic dynamics in the injection of non-thermal electrons, that can be produced by periodic modulation of magnetic reconnection.

Authors: E. G. Kupriyanova, L. K. Kashapova, H. A. S. Reid, I. N. Myagkova
Projects: CORONAS-F,Nobeyama Radioheliograph,RHESSI

Publication Status: accepted to Solar Physics, in press
Last Modified: 2016-08-05 15:28
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