1D hybrid simulations of rotational discontinuities (RDs) are presented. When the angle between the discontinuity normal and the magnetic field (theta-BN) is 30 deg, the RD broadens into a quasi-steady state of width 60-80 c/omega-i. The hodogram has a characteristic S-shape. When theta-BN = 60 deg, the RD is much narrower (10 c/omega-i). For right handed rotations, the results are similar to theta-BN = 30 deg. For left handed rotations, the RD does not evolve much from its initial conditions and the S-shape in the hodogram is much less visible. The results can be understood in terms of matching a fast mode wavelike structure upstream of the RD with an intermediate mode one downstream.
Hybrid simulations of rotational discontinuities
Advances in Space Research ; 11 , 9 19
1991-01-01
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Englisch
Hybrid simulations of rotational discontinuities
Elsevier | 1991
|On the structure of rotational discontinuities with large phase angles
Elsevier | 1991
|