Ion dynamics in a perpendicular collisionless shock
Abstract
Some properties of perpendicular collisionless shocks are investigated, using a model in which the ion orbits in the shock are assumed to be determined by the average electric and magnetic fields in the shock. These fields are modelled, with the jump in magnetic field across the shock being determined by the conservation relations, and the potential jump determined selfconsistently within the model, using the fact that the mean ion velocity downstream of the shock is determined by the conservation relations. Extensive numerical calculations of ion orbits show that effective ion heating can occur in the absence of any dissipative process, with the energy residing in nonMaxwellian velocity distributions in the downstream regions. Results on this and on a number of other features of shock waves, agree well with experiments.
 Publication:

Journal of Plasma Physics
 Pub Date:
 April 1977
 DOI:
 10.1017/S0022377800020602
 Bibcode:
 1977JPlPh..17..265S
 Keywords:

 Collisionless Plasmas;
 Ion Motion;
 Ion Temperature;
 Orbital Mechanics;
 PlasmaParticle Interactions;
 Shock Wave Propagation;
 Conservation Equations;
 Electric Fields;
 Magnetic Fields;
 Mathematical Models;
 Self Consistent Fields;
 Velocity Distribution;
 Plasma Physics