Dispersive shock waves in the solar wind

Details Dispersive shock waves in the solar wind Dispersive shock waves in the solar wind

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007an....328..734b&link_type=abstract

Astronomische Nachrichten, Vol.328, Issue 8, p.734

Astronomy and Astrophysics

Astronomy

2

Solar Wind, Magnetohydrodynamics (Mhd), Shock Waves

Scientific paper

Compressional waves in the solar wind propagating over large distances are likely to steepen into shock waves where the increase in the amplitude is balanced by dissipation. Dispersive effects caused by, e.g. Hall currents perpendicular to the ambient magnetic field can influence the generation and propagation of shock waves. In the present study the dispersion is considered weak but in time its importance can grow. When the effect of dispersion is strong enough, it can balance the nonlinear steepening of waves leading to the formation of solitons. The obtained results show that the weak dispersion will alter the amplitude and propagation speed of the shock wave.

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