Collisionless plasma shocks in striated electron temperatures

Details Collisionless plasma shocks in striated electron temperatures Collisionless plasma shocks in striated electron temperatures

2010-01-28

arxiv.org/abs/1001.5182v2

Phys. Rev. Lett. 104 (2010) 085002

Physics

Plasma Physics

4 pages, 4 figures; accepted for publication in PRL; v2 shortened due to page restrictions and includes minor corrections (no

Scientific paper

10.1103/PhysRevLett.104.085002

The existence of low frequency waveguide modes of ion acoustic waves is demonstrated in magnetized plasmas for electron temperature striated along the magnetic field lines. At higher frequencies, in a band between the ion cyclotron and the ion plasma frequency, radiative modes develop and propagate obliquely to the field away from the striation. Arguments for the subsequent formation and propagation of electrostatic shock are presented and demonstrated numerically. For such plasma conditions, the dissipation mechanism is the "leakage" of the harmonics generated by the wave steepening.

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