著者

坂井 純一 西河 謙一

出版者

富山大学

雑誌

富山大学工学部紀要 (ISSN:03871339)

巻号頁・発行日

vol.34, pp.80-91, 1983-03

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A model of 'disparitions brusques' (sudden disappearance of eruptive prominences) is discussed based on the Kippenhahn and Schluter configuration. It is shown that Kippenhahn and Schluter'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 rapidly growing instability associated with magnetic field reconnection.This instability gives rise to disruptions of quiescent prominences and also generates high energy particles.

著者

坂井 純一 鷲見 治一

出版者

富山大学

雑誌

富山大学工学部紀要 (ISSN:03871339)

巻号頁・発行日

vol.36, pp.47-52, 1985-03

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Recent observations of solar prominences show that slow upward motions ( ≌ 1 kms^<-1> ) occur through quiescent prominences and a fast input of material with horizontal motions ( ≌ 5 kms^<-1> ) occurs at both edges of prominences. A time-dependent dynamical model of solar prominences with current sheet is investigated. It is natural extension of the magnetostatic models proposed by Kippenhahn and Schluter (KS) and Kuperus and Raadu (KR). It is shown that horizontal nonlinear oscillations can exist in the prominences. The global structure of current sheet including solar wind plasmas is also simulated by means of full MHD equations.