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A Scenario for the Fine Structures of Solar Type IIIb Radio Bursts Based on the Electron Cyclotron Maser Emission View all abstracts by submitter

ChuanBing Wang   Submitted: 2015-04-08 19:05

A scenario based on the electron cyclotron maser emission is proposed for the fine structures of solar radio emission in the present discussion. It is suggested that under certain conditions modulation of the ratio between the plasma frequency and electron gyro-frequency by ultra low frequency waves, which is a key parameter for excitation of the electron cyclotron maser instability, may lead to the intermittent emission of radio waves. As an example, the explanation of the observed fine-structure components in the solar type IIIb burst is discussed in detail. Three primary issues of the type IIIb bursts are addressed: 1) what is the physical mechanism that results in the intermittent emission elements that form a chain in the dynamic spectrum of type IIIb bursts, 2) what causes the split pair (or double stria) and the triple stria, 3) why in the events of fundamental-harmonic pair emission there is only IIIb-III, but IIIb-IIIb or III-IIIb cases are very rarely observed.

Authors: C. B. Wang
Projects: None

Publication Status: Accepted for publication in The Astrophysical Journal
Last Modified: 2015-04-14 07:26
Go to main E-Print page  Stopping frequency of type III solar radio bursts in expanding magnetic flux tubes  Kinematics of ICMEs/Shocks: Blast Wave Reconstruction Using Type-II Emissions  Edit Entry  Download Preprint  Delete Entry 

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