Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010apj...712..565s&link_type=abstract
The Astrophysical Journal, Volume 712, Issue 1, pp. 565-573 (2010).
Astronomy and Astrophysics
Astronomy
1
Methods: Analytical, Magnetohydrodynamics: Mhd, Plasmas, Solar Wind, Sun: Coronal Mass Ejections: Cmes
Scientific paper
The self-similar model of coronal transients by B. C. Low is reconsidered. Due to a modification of the basic set of the initial assumptions of the model, a new class of more consistent solutions is found. The main advantage of these new solutions is that they do not contain areas with a physically inconsistent negative pressure. Instead, the novel solutions are derived on the basis of a special prescription for the thermal pressure of the transients that guarantees, by design, its positiveness throughout the whole evolution domain. The possible importance of these solutions for understanding the physics of the transient interplanetary coronal mass ejections (ICMEs; originating from the Sun), and magnetic clouds as a subclass of these, is discussed. A practical example is cited illustrating the application of our analytic results to describe some properties of real ICMEs. Some directions and scopes for further research are outlined.
Debosscher Arnold
Poedts Stefaan
Rogava Andria
Shapakidze David
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