Dynamics of braided coronal loops I. Onset of magnetic reconnection

Dynamics of braided coronal loops I. Onset of magnetic reconnection
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编织冠状环的动力学 I. 磁重联的开始

DOI:
10.1051/0004-6361/201014041
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发表时间:
2010
影响因子:
6.5
通讯作者:
Wilmot-Smith A
Wilmot-Smith A
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Wilmot-Smith A

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目的太阳日冕磁场对小尺度光球边界运动的响应,包括通过帕克情景可能形成的电流片,是太阳物理学的开放问题之一。这里我们通过数值模拟来解决这个问题。方法用电阻MHD码跟踪初始接近无力状态的编织磁场的三维演化。结果产生了长波长不稳定性,形成了两个薄电流层。磁重联发生在电流片上,具有三维特征,包括重联点周围的椭圆磁场结构,并导致全球磁场结构的解扭。
AimsThe response of the solar coronal magnetic field to small-scale photospheric boundary motions including the possible formation of current sheets via the Parker scenario is one of open questions of solar physics. Here we address the problem via a numerical simulation.MethodsThe three-dimensional evolution of a braided magnetic field which is initially close to a force-free state is followed using a resistive MHD code.ResultsA long-wavelength instability takes place and leads to the formation of two thin current layers. Magnetic reconnection occurs across the current sheets with three-dimensional features shown, including an elliptic magnetic field structure about the reconnection site, and results in an untwisting of the global field structure.
经历旋转足点运动的磁通管中的磁重联
DOI: 10.1051/0004-6361:20077455
发表时间: 2007
影响因子: 6.5
作者:
Wilmot-Smith A
通讯作者: Wilmot-Smith A
DOI: 10.1088/0004-637x/704/2/1288
发表时间: 2009-07
期刊: The Astrophysical Journal
影响因子: --
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期刊: The Astrophysical Journal
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