On the upward plasma stream in a dynamic prominence model

Details On the upward plasma stream in a dynamic prominence model On the upward plasma stream in a dynamic prominence model

Mar 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998arep...42..259s&link_type=abstract

Astronomy Reports, Volume 42, Issue 2, March 1998, pp.259-264

Astronomy and Astrophysics

Astronomy

Scientific paper

The plasma stream rising from the base of a magnetic arcade along the magnetic lines of force is studied theoretically in the framework of a dynamic prominence model. The stream velocity is determined by the structure of the emitting region in the arch, and this structure depends on the heat conduction regime along the magnetic field. A simple formula for the upward stream velocity is obtained for the case when the temperture dependence of the longitudinal thermal conductivity has the form Xi = Xi_0 T^5/2. The velocity calculated using this theoretical formula agrees with the upward stream velocity measured for spectral lines in the transition region.

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