A model of ‘disparitions brusques’ (sudden disappearance of eruptive prominences) as an instability driven by mhd waves
✍ Scribed by J. Sakai; K. -I. Nishikawa
- Book ID
- 104659054
- Publisher
- Springer
- Year
- 1983
- Tongue
- English
- Weight
- 653 KB
- Volume
- 88
- Category
- Article
- ISSN
- 0038-0938
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✦ Synopsis
A model of'disparitions brusques' (sudden disappearence of eruptive prominences) is discussed based on the Kippenhahn ans Schl~iter configuration. It is shown that Kippenhahn and Schliiter's current sheet is very weakly unstable against magnetic reconnecting modes during the lifetime of quiescent prominences. Disturbances in the form of fast magnetosonic waves originating from nearby active regions or the changes of whole magnetic configuration due to newly emerged magnetic flux may trigger a rapid growing instability associated with magnetic field reconnection. This instability gives rise to disruptions of quiescent prominences and also generates high energy particles.