Force balance in current sheets in collisionless plasma-Reference-Cited by-同舟云学术

Force balance in current sheets in collisionless plasma

Published:2021-06-30 Issue:2 Volume:7 Page:12-23
ISSN:2712-9640
Container-title:Solnechno-Zemnaya Fizika
language:en
Short-container-title:

Author:

Mingalev Oleg¹²,Setsko Pavel³,Melnik Mikhail¹,Mingalev Igor¹²,Malova Helmi⁴⁵,Merzlyi Alexey⁵

Affiliation:

1. Polar Geophysical Institute RAS

2. Murmansk Arctic State University

3. Polar Geophysical InstituteRAS

4. Skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State University

5. Space Research Institute RAS

Abstract

In this paper, we derive a divergent form of the force balance equation for collisionless plasma in the quasineutrality approximation, in which the electric field and current density are excluded. For a stationary spatially one-dimensional current sheet with a constant normal component of the magnetic field and magnetized electrons, the general form of the force balance equation has been obtained for the first time in the form of a conservation law. An equation in this form is necessary for the correct formulation of boundary conditions when modeling asymmetric current sheets, as well as for the control of the stationarity of the numerical solution obtained in the model. Furthermore, the fulfillment of this equation is considered for two types of stationary configurations of a thin current sheet, which are obtained using a numerical model. The derived equation makes it possible to develop models of asymmetric current sheets, in particular current sheets on the magnetopause flanks in the magnetotail.

Publisher

Infra-M Academic Publishing House

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