| タイトル | Penetration of the Interplanetary Magnetic Field B(sub y) into Earth's Plasma Sheet |
| 本文（外部サイト） | http://hdl.handle.net/2060/19970026617 |
| 著者（英） | Erickson, G. M.; Hau, L.-N. |
| 著者所属（英） | National Central Univ. |
| 発行日 | 1995-01-01 |
| 言語 | eng |
| 内容記述 | There has been considerable recent interest in the relationship between the cross-tail magnetic field component B(sub y) and tail dynamics. The purpose of this paper is to give an overall description of the penetration of the interplanetary magnetic field (IMF) B(sub y) into the near-Earth plasma sheet. We show that plasma sheet B(sub y) may be generated by the differential shear motion of field lines and enhanced by flux tube compression. The latter mechanism leads to a B(sub y) analogue of the pressure-balance inconsistency as flux tubes move from the far tail toward the Earth. The growth of B(sub y), however, may be limited by the dawn-dusk asymmetry in the shear velocity as a result of plasma sheet tilting. B(sub y) penetration into the plasma sheet implies field-aligned currents flowing between hemispheres. These currents together with the IMF B(sub y) related mantle field-aligned currents effectively shield the lobe from the IMF B(sub y). |
| NASA分類 | Geophysics |
| レポートNO | 97N25866
NASA-CR-205125
NAS 1.26:205125
Paper-95JA01935 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
