Accession Number:

ADA207310

Title:

Collisionless Tearing Instability of a Bi-Maxwellian Neutral Sheet with Exact Particle Orbits

Descriptive Note:

Interim rept.

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

Report Date:

1989-03-27

Pagination or Media Count:

55.0

Abstract:

The tearing instability of a neutral sheet may be important to reconnection in the magnetosphere and elsewhere. The use of a bi-Maxwellian Harris equilibrium is broadly applicable to the physical environment and allows a continuous variation from isotropic situations. The integro-differential equation describing the linear tearing instability in the bi-Maxwellian neutral sheet is solved without approximating the particle orbits. Results of this calculation are presented. Comparison between the exact solution and the 3- region approximation motivates the piecewise-straight-line approximation, a simplification which allows faster solution of the integro-differential equation, yet retains the important features of the exact solution. Keywords Collisionless tearing mode Anisotropic temperature Reconnection Integrodifferential equation.

Subject Categories:

  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE