Magnetic X-Points, Islands Coalescence and Intense Plasma Heating
- S.-I. Akasofu and
- J.R. Kan
Published Online: 26 MAR 2013
Copyright 1981 by the American Geophysical Union.
Physics of Auroral Arc Formation
How to Cite
Leboeuf, J. N., Tajima, T. and Dawson, J. M. (1981) Magnetic X-Points, Islands Coalescence and Intense Plasma Heating, in Physics of Auroral Arc Formation (eds S.-I. Akasofu and J.R. Kan), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM025p0337
- Published Online: 26 MAR 2013
- Published Print: 1 JAN 1981
Print ISBN: 9780875900506
Online ISBN: 9781118664360
- Auroras—Addresses, essays, lectures
Release of a large amount of magnetic energy and intense plasma heating take place and an extremely hot ion tail is created, if and when tearing instability induced magnetic islands merge, according to fully self-consistent particle simulations. Although the tearing instability exponentiates the kinetic energy, it does not give rise to intense heating because of the small amount of magnetic energy available by reconnection. The stability and topology of the x-point depend on the crossing angle of the field lines at the x.