MAGNETIC RELAXATION, CURRENT SHEETS, AND STRUCTURE FORMATION IN AN EXTREMELY TENUOUS FLUID MEDIUM
MAGNETIC RELAXATION, CURRENT SHEETS, AND STRUCTURE FORMATION IN AN EXTREMELY TENUOUS FLUID MEDIUM
复制标题
极其稀薄的流体介质中的磁弛豫、电流片和结构形成
DOI:
10.1088/0004-637x/779/2/169
复制
发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Bajer K
中科院分区:
文献类型:
--
作者:
Bajer K
The process of relaxation of a unidirectional magnetic field in a highly conducting tenuous fluid medium is considered. Null points of the field play a critical role in this process. During an initial stage of relaxation, variations in magnetic pressure are eliminated, and current sheets build up in the immediate neighborhood of null points. This initial phase is followed by a long diffusive phase of slow algebraic decay of the field, during which fluid is continuously sucked into the current sheets, leading to exponential growth of fluid density and concentration of mass around the null points, which show a tendency to cluster. Ultimately, this second phase of algebraic decay gives way to a final period of exponential decay of the field. The peaks of density at the null points survive as a fossil relic of the decay process. Numerical solution of the governing equations provides convincing confirmation of this three-stage scenario. Generalizations to two-and three-dimensional fields are briefly considered.
登录
查看更多内容
DOI:
10.1111/j.1365-2966.2004.08520.x/abs
发表时间:
2004
影响因子:
4.8
作者:
S. Sethi;K. Subramanian
通讯作者:
K. Subramanian
DOI:
10.1088/0004-637x/748/1/61
发表时间:
2011
期刊:
The Astrophysical Journal
影响因子:
--
作者:
A. Davis;Baojiu Li;D. Mota;H. Winther
通讯作者:
H. Winther
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
Timur Doumler;A. Knebe
通讯作者:
A. Knebe
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
M. Hanasz;H. C. F. Astronomy;Nicholas Copernicus University;Poland;U. Observatory;M. University;H Germany
通讯作者:
H Germany
DOI:
--
发表时间:
2006
期刊:
Monthly Notices of the Royal Astronomical Society 368
影响因子:
--
作者:
Hiroyuki Tashiro;Naoshi Sugiyama
通讯作者:
Naoshi Sugiyama