Finite Larmor radius influence on MHD solitary waves
Copyright policy )Finite Larmor radius influence on MHD solitary waves
Abstract. MHD solitons are studied in a model where the usual Hall-MHD model is extended to include the finite Larmor radius (FLR) corrections to the pressure tensor. The resulting 4-dimensional set of differential equations is treated numerically. In this extended model, the point at infinity can be of several types. Necessary for the existence of localized solutions is that it is either a saddle-saddle, a saddle-center, or, possibly, a focus-focus. In cases of saddle-center, numerical solutions for localized travelling structures have been obtained, and compared with corresponding results from the Hall-MHD model.
VDP::Mathematics and natural science: 400::Mathematics: 410::Applied mathematics: 413, QC801-809, VDP::Mathematics and natural science: 400::Physics: 430::Space and plasma physics: 437, Science, Physics, QC1-999, Q, Geophysics. Cosmic physics, VDP::Mathematics and natural science: 400::Physics: 430::Astrophysics, astronomy: 438, VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Astrofysikk, astronomi: 438, VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Rom- og plasmafysikk: 437, VDP::Matematikk og Naturvitenskap: 400::Matematikk: 410::Anvendt matematikk: 413
VDP::Mathematics and natural science: 400::Mathematics: 410::Applied mathematics: 413, QC801-809, VDP::Mathematics and natural science: 400::Physics: 430::Space and plasma physics: 437, Science, Physics, QC1-999, Q, Geophysics. Cosmic physics, VDP::Mathematics and natural science: 400::Physics: 430::Astrophysics, astronomy: 438, VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Astrofysikk, astronomi: 438, VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Rom- og plasmafysikk: 437, VDP::Matematikk og Naturvitenskap: 400::Matematikk: 410::Anvendt matematikk: 413
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