Dynamic and stagnating plasma flow leading to magnetic-flux-tube collimation

被引：58
作者：
You, S [1 ]
Yun, GS [1 ]
Bellan, PM [1 ]
机构：
[1] CALTECH, Pasadena, CA 91125 USA
来源：
PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 04期
关键词：
D O I：
10.1103/PhysRevLett.95.045002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Highly collimated, plasma-filled magnetic-flux tubes are frequently observed on galactic, stellar, and laboratory scales. We propose that a single, universal magnetohydrodynamic pumping process explains why such collimated, plasma-filled magnetic-flux tubes are ubiquitous. Experimental evidence from carefully diagnosed laboratory simulations of astrophysical jets confirms this assertion and is reported here. The magnetohydrodynamic process pumps plasma into a magnetic-flux tube and the stagnation of the resulting flow causes this flux tube to become collimated.
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页数：4
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