摘要
将冕环电流按成因分成三种类型:对流电流、感应电流和自举电流,并分别进行了讨论。将tokamak等离子体中的自举电流的概念引入到冕环中,初步分析表明在部分冕环中也可能产生可观的自举电流。这种电流的存在将对冕环的稳定性将产生重要的影响。
According to the origin, the electrical currents in coronal loops can be classified into three kinds： the convective current, inductive current and bootstrap current that are investigated and discussed in this paper. Because the magnetic field configuration in solar coronal loop is much similar to that of the Tokamaks, and in Tokamaks, the bootstrap current plays an important role for their steady operating. We introduce the concept of the bootstrap current into coronal loops and find that there will be existence of a measurable bootstrap current in some coronal loops. This current will affect the instability of loops in a great way.
出处
《天文研究与技术》
CSCD
北大核心
2006年第2期191-197,共7页
Astronomical Research & Technology
基金
国家自然科学基金(10333030
10273025)
"973"项目(G2000078403)资助
关键词
冕环
电流
成因
coronal loop
electrical current
origin
