Waves and wakes excited by a moving disturbance in a 2D magnetized dusty plasma

Details Waves and wakes excited by a moving disturbance in a 2D magnetized dusty plasma Waves and wakes excited by a moving disturbance in a 2D magnetized dusty plasma

Mar 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007njph....9...57j&link_type=abstract

New Journal of Physics, Volume 9, Issue 3, pp. 57 (2007).

Physics

3

Scientific paper

A hydrodynamic model is proposed to study a moving disturbance (for example a laser spot) excited waves and wakes in a two-dimensional (2D) magnetized dusty plasma, with particular attention being paid to the effect of magnetic field on structures of wake patterns. Numerical results show that in the weak magnetic field case the wakes exhibit typical V-shaped Mach cone structures similar to those observed in non-magnetized dusty plasmas. Whereas with increasing magnetic field, the wakes lose their symmetry gradually regarding the moving direction of the disturbance and the Mach cones become oscillatory wakes. In the case of extremely strong field, the wakes further turn into a non-oscillatory perturbation zone right behind the disturbance.

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