2-DIMENSIONAL MODEL OF A SLOW-MODE EXPANSION FAN AT IO

被引：11
|
作者：
KRISKO, PH
HILL, TW
机构：
[1] Space Physics and Astronomy Department, Rice University
来源：
GEOPHYSICAL RESEARCH LETTERS | 1991年 / 18卷 / 11期
关键词：
D O I：
10.1029/91GL02541
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
We develop a 2-D model for the standing slow-mode expansion fan that is expected to exist downstream of the Jovian moon Io. The leading edge of the expansion fan makes an angle of 45-degrees with the upstream magnetic field direction, and the fan width is about 114-degrees. The plasma flow returns to its upstream direction by way of a slow-mode shock behind Io where the MHD parameters return asymptotically to their upstream conditions. The magnetic field perturbation within the fan is much smaller than that associated with the Alfven wing, which lies farther upstream.
引用
收藏
页码：1947 / 1950
页数：4
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