Solar Wind-Magnetosphere Interaction as Simulated by a 3-D EM Particle Code

K. I. Nishikawa, O. Buneman, Torsten Neubert

Research output: Contribution to journalConference articlepeer-review

Abstract

We have studied the solar wind-magnetosphere interaction using a 3-D electromagnetic particle code. The results for an unmagnetized solar wind plasma streaming past a dipole magnetic field show the formation of a magnetopause and a magnetotail, the penetration of energetic particles into cusps and radiation belt and dawn-dusk asymmetries. The effects of interplanetary magnetic field (IMF) have been investigated in a similar way as done by MHD simulations. The simulation results with a southward IMF show the shrunk magnetosphere with great particle entry into the cusps and nightside magnetosphere. This is a signature of a magnetic reconnection at the dayside magnetopause. After a quasi-stable state is established with an unmagnetized solar wind we switched on a solar wind with an northward IMF. In this case the significant changes take place in the magnetotail. The waving motion was seen in the magnetotail and its length was shortened. This phenomena are consistent with the reconnections which occur at the high latitude magnetopause. In our simulations kinetic effects will determine the self-consistent anomalous resistivity in the magnetopause that causes reconnections.
Original languageEnglish
JournalAstrophysics and Space Science
Volume227
Issue number1-2
Pages (from-to) 265-276
ISSN0004-640X
DOIs
Publication statusPublished - May 1995
Externally publishedYes
Event2nd IEEE International Workshop on Plasma Astrophysics and Cosmology - Princeton, NJ, United States
Duration: 10 May 199312 May 1993
Conference number: 2

Conference

Conference2nd IEEE International Workshop on Plasma Astrophysics and Cosmology
Number2
Country/TerritoryUnited States
CityPrinceton, NJ
Period10/05/199312/05/1993

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