On the Cause of X-Line Formation in the Near-Earth Plasma Sheet: Results of Adiabatic Convection of Plasma-Sheet Plasma
- Edward W. Hones Jr.
Published Online: 19 MAR 2013
Copyright 1984 by the American Geophysical Union.
Magnetic Reconnection in Space and Laboratory Plasmas
How to Cite
Erickson, G. M. (1984) On the Cause of X-Line Formation in the Near-Earth Plasma Sheet: Results of Adiabatic Convection of Plasma-Sheet Plasma, in Magnetic Reconnection in Space and Laboratory Plasmas (ed E. W. Hones), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM030p0296
- Published Online: 19 MAR 2013
- Published Print: 1 JAN 1984
Print ISBN: 9780875900582
Online ISBN: 9781118664223
- Frozen-in-flux theorem;
- Magnetospheric substorms;
- Quasi-static convection;
- X-line formation
Self-consistent, static-equilibrium solutions are presented for two-dimensional magnetospheric-magnetic-field configurations with isotropic thermal pressure. These solutions include a dipole field and are not restricted to the asymptotic theory. Adiabatic convection of plasma sheet flux tubes is modeled as a series of static-equilibrium solutions in which flux tubes conserve their PVγ as they convect, which resulted in time dependent magnetospheric configurations. Specifically it is found that a deep minimum in the equatorial Bz develops in the inner plasma sheet, thereby causing the magneticfield configuration to become more stretched and tail-like in time. These results suggest X-line formation in the inner plasma sheet as a consequence of lossless, adiabatic convection of plasma sheet flux tubes.