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Numerical model of coronal streamer

Domenii publicaţii > Matematica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: C.Dumitrache

Editorial: The Royal Swedish Academy of Sciences, Phisica Scripta, 62, p.510-518, 2000.

Rezumat:

This paper focuses on a single £uid, two-dimensional, axisymmetric,
time-dependent, magnetohydrodynamic numerical simulation of the forma-
tion and evolution of a coronal streamer in a current sheet.
Two types of evolution are described: (a) the disruption of the streamer in a
CME and (b) the dissolution of the streamer probably caused by the current
sheet dissipation in the solar atmosphere. In the ¢rst case, the ejected
plasmoid density reaches 21 x 10^ 9 cm^3 at 8 solar radii from the Sun; in
the second case, the maximum density attained is about 5 x 10^9 cm^3 .
The temperature does not exceed 5×10^6 K. These plasma parameters fit
well the observations.

Cuvinte cheie: solar physics, solar -terrestrial, mhd numerical simulalions, coronal streammer

URL: http://adsabs.harvard.edu/abs/2000PhyS...62..510D