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DOI | 10.1002/2017GL074505 |
MHD Collimation Mechanism in Arched Flux Ropes Characterized Using Volumetric, Time-Dependent B-Vector Measurements | |
Haw, Magnus A.; Bellan, Paul M. | |
2017-10-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:19 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Laboratory measurements of B(x,t) in a volume enclosing portions of two arched flux ropes show flux rope collimation driven by gradients in axial current density. These measurements verify the three predictions of a proposed MHD collimation mechanism: (1) axial magnetic forces exist in current channels with spatially varying minor radius, (2) these forces can drive counterpropagating axial flows, and (3) this process collimates the flux rope. This mechanism may explain the axial uniformity of solar loops and is relevant to other systems with current channels of varying minor radius such as solar prominences and astrophysical jets. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413921300001 |
WOS关键词 | CORONAL LOOPS ; MAGNETIC-STRUCTURE ; SOLAR CORONA ; PROMINENCES ; PLASMA ; TRACE ; SIMULATIONS ; DYNAMICS ; JETS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/27670 |
专题 | 气候变化 |
作者单位 | CALTECH, Dept Appl Phys & Mat Sci, Pasadena, CA 91125 USA |
推荐引用方式 GB/T 7714 | Haw, Magnus A.,Bellan, Paul M.. MHD Collimation Mechanism in Arched Flux Ropes Characterized Using Volumetric, Time-Dependent B-Vector Measurements[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(19). |
APA | Haw, Magnus A.,&Bellan, Paul M..(2017).MHD Collimation Mechanism in Arched Flux Ropes Characterized Using Volumetric, Time-Dependent B-Vector Measurements.GEOPHYSICAL RESEARCH LETTERS,44(19). |
MLA | Haw, Magnus A.,et al."MHD Collimation Mechanism in Arched Flux Ropes Characterized Using Volumetric, Time-Dependent B-Vector Measurements".GEOPHYSICAL RESEARCH LETTERS 44.19(2017). |
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