On the Mechanism of Formation of Loop Prominences

Details On the Mechanism of Formation of Loop Prominences On the Mechanism of Formation of Loop Prominences

Aug 1973

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973soph...31..437d&link_type=abstract

Solar Physics, Volume 31, Issue 2, pp.437-447

Physics

3

Scientific paper

A mechanism is suggested for the formation of loop-type prominences in solar-active regions following flare events. The mechanism is based on the already existing idea of compression of a coronal plasma element resulting in enhanced radiation and consequent cooling of the element. A model is suggested for such a compression based on the concept of a contracting, force-free filamentary structure. If the current in a filament increases with time, then there is a radial contraction of the filament. Since the coronal plasma is frozen into the magnetic field lines of the filament, a contraction of the filament causes a compression of the filamentary plasma. This model of compression is shown to be in approximate qualitative and quantitative agreement with observations.

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