A laboratory plasma experiment for studying magnetic dynamics of accretion discs and jets
A laboratory plasma experiment for studying magnetic dynamics of accretion discs and jets
复制标题
用于研究吸积盘和射流磁动力学的实验室等离子体实验
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
P. Bellan
中科院分区：
文献类型：
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作者：
S. Hsu;P. Bellan
这项工作描述了一个实验室等离子体实验和初步结果，应该给洞察吸积盘和射流的磁动力学。一个高速多帧CCD相机揭示了准直等离子体的形成和螺旋不稳定性的图像，类似于磁盘射流的MHD模型，以及与spheromak形成相关的等离子体脱离，这可能与磁盘风和耀斑有关。等离子体是由平面磁化同轴枪产生的。由此产生的磁拓扑结构依赖于磁螺旋度注入的细节，即由同轴枪施加的无力态本征值α枪。
This work describes a laboratory plasma experiment and initial results which should give insight into the magnetic dynamics of accretion discs and jets. A high-speed multiple-frame CCD camera reveals images of the formation and helical instability of a collimated plasma, similar to MHD models of disc jets, and also plasma detachment associated with spheromak formation, which may have relevance to disc winds and flares. The plasmas are produced by a planar magnetized coaxial gun. The resulting magnetic topology is dependent on the details of magnetic helicity injection, namely the force-free state eigenvalue αgun imposed by the coaxial gun.