A Physical Explanation on Solar Microwave Zebra Pattern with the Current-carrying Plasma Loop Model - Astrophysics > Solar and Stellar AstrophysicsReport as inadecuate




A Physical Explanation on Solar Microwave Zebra Pattern with the Current-carrying Plasma Loop Model - Astrophysics > Solar and Stellar Astrophysics - Download this document for free, or read online. Document in PDF available to download.

Abstract: Microwave zebra pattern structure is an intriguing fine structure on thedynamic spectra of solar type IV radio burst. Up to now, there isn-t a perfectphysical model for the origin of the solar microwave zebra pattern. Recently,Ledenev, Yan and Fu 2006 put forward an interference mechanism to explain thefeatures of microwave zebra patterns in solar continuum events. This modelneeds a structure with a multitude of discrete narrow-band sources of smallsize. Based on the model of current-carrying plasma loop and the theory oftearing mode instability, we proposed that the above structure does exist andmay provide the main conditions for the interference mechanism. With thismodel, we may explain the frequency upper limit, the formation of the paralleland equidistant stripes, the superfine structure and intermediate frequencydrift rate of the zebra stripes. If this explanation is valid, the zebrapattern structures can reveal some information of the motion and the innerstructures of the coronal plasma loops.



Author: Baolin Tan

Source: https://arxiv.org/



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