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## Comparison of alternative zebra-structure models in solar radio emission by G.P. Chernov et al.*

16 May 2017, 11:04 UTC
(200 words excerpt, click title or image to see full post)

Discussion about the nature of zebra-structure (ZS) in type IV radio bursts continues, despite the ten proposed models. First of all, this is due to the wide variety of stripes in each new phenomenon, making the explanation of all the fine details by any one mechanism becomes impossible. The most widespread explanation is the emission at different levels of double plasma resonance (DPR), sequential on the height surfaces in the magnetic trap, where the upper hybrid frequency ($\omega_{UH}$) becomes equal to the integer of electronic cyclotron harmonics $s\omega_{Be}$: $\omega_{UH} = (\omega_{Pe}^2 + \omega_{Be}^2)^{1/2} = s\omega_{Be}$ (Zheleznyakov, Zlotnik, 1975; Winglee, Dulk, 1986; Kuznetsov &amp; Tsap (2007) ). An important alternative mechanism is the interaction of plasma waves with whistlers waves: $l + w \Rightarrow t$ (Chernov, 1976; 2006). Here, we will show the possibility of explaining the main features of zebra stripes in the model with whistlers, using the example of the phenomenon on August 1, 2010.
Introduction
A number of authors continue to improve mechanisms based on the DPR model. Karlicky and Yasnov (2015), showed that ZS can be excited within the framework of the DPR in the transition layer only in a narrow height interval (model Selhost et al. ...