The Wardle Instability in Interstellar Shocks: I. Nonlinear Dynamical Evolution

Details The Wardle Instability in Interstellar Shocks: I. Nonlinear Dynamical Evolution The Wardle Instability in Interstellar Shocks: I. Nonlinear Dynamical Evolution

1997-04-23

arxiv.org/abs/astro-ph/9704222v1

Astronomy and Astrophysics

Astrophysics

20 pages, 7 Postscript figures, LaTeX, accepted by Ap.J

Scientific paper

10.1086/304595

The nonlinear evolution of unstable C-type shocks in weakly ionized plasmas is studied by means of time-dependent magnetohydrodynamical simulations. This study is limited to shocks in magnetically dominated plasmas (in which the Alfven speed in the neutrals greatly exceeds the sound speed), and microphysical processes such as ionization and recombination are not followed. Both two-dimensional simulations of planar perpendicular and oblique C-type shocks, and fully three-dimensional simulation of a perpendicular shock are presented.

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