Coronal loop transients in streamer configurations

Details Coronal loop transients in streamer configurations Coronal loop transients in streamer configurations

Nov 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...115...39s&link_type=abstract

Astronomy and Astrophysics, vol. 115, no. 1, Nov. 1982, p. 39-49.

Astronomy and Astrophysics

Astrophysics

24

Coronal Loops, Magnetohydrodynamic Flow, Plasma-Electromagnetic Interaction, Solar Activity, Stellar Mass Ejection, Thermodynamic Properties, Transient Response

Scientific paper

It is pointed out that whereas the models developed to simulate the dynamics of the transient do in fact clarify some basic physics of the observed features of mass ejections, they are not able to simulate certain other important features. A model is described here which leads to a more realistic simulation of the observed features of one class of coronal mass ejections and, as a consequence, to a better understanding of the related physical processes. The particular class of ejections investigated here is the loop-like transients preferentially associated with eruptive prominences that make up approximately one-third of the ejections observed during the Skylab period. The initial state for the transient simulation considered here is a coronal streamer configuration. The streamer model employed is that given by Steinolfson et al. (1982). The complete simulation comprises two independent calculations. In the first, the streamer configuration is established; in the second, a perturbation in thermal pressure is introduced at the base of the closed loops that simulates the solar event, with the solar event here assumed to refer to the energy release that produces the transient.

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