Finite Larmor radius influence on MHD solitary waves

Finite Larmor radius influence on MHD solitary waves

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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 Deadshaft Cover 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, Dome Cameras 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.