Dynamical model of prominence formation and oscillation, I | Zendy

Jun-ichi Sakai | Zendy; A. M. Colin | Zendy; E. R. Priest | Zendy

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Dynamical model of prominence formation and oscillation, I

Author(s) -

Jun-ichi Sakai,

A. M. Colin,

E. R. Priest

Publication year - 1987

Publication title -

solar physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.026

H-Index - 123

eISSN - 1573-093X

pISSN - 0038-0938

DOI - 10.1007/bf00167345

Subject(s) - current sheet , physics , oscillation (cell signaling) , instability , current (fluid) , nonlinear system , condensation , mechanics , compression (physics) , classical mechanics , magnetohydrodynamics , plasma , thermodynamics , nuclear physics , quantum mechanics , biology , genetics

We investigate a dynamical model of prominence formation in a current sheet at the boundary between two regions of opposite magnetic polarity. Coupled nonlinear equations describing the temporal compression and condensation of plasma in the current sheet are set up as a natural extension of the usual equations for current sheet collapse (Imshennik and Syrovatskii, 1967). It is shown that under certain conditions the current sheet undergoes a nonlinear oscillation during the compression. The thermal instability with cooling is driven by a density enhancement produced during the current sheet formation stage.

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