Abstract:
A well localized packet of ion-acoustic waves propagating in a collisionless unmagnetized plasma produces long-range second-order perturbations of the moments of the electron distribution function due to those electrons which cross the region where the electric field is present, take a “kick", and carry this information at large distances from the packet itself. An extended “halo" is thus formed around the wave-packet, with an intensity decreasing in space typically according to a power-law. This “halo" contains electrostatic as well as magnetic perturbations.
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Received 25 July 2001 and Received in final form 31 October 2001
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Lontano, M., Ryutov, D. Long-range perturbations produced by a localized packet of ion-acoustic waves in a collisionless plasma. Eur. Phys. J. D 18, 347–351 (2002). https://doi.org/10.1140/epjd/e20020040
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DOI: https://doi.org/10.1140/epjd/e20020040