自发磁场和外部磁场中的磁性再连接竞争

IF 1.6 3区物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS

High Energy Density Physics Pub Date : 2024-07-14 DOI:10.1016/j.hedp.2024.101132

K. Sakai , T.Y. Huang , N. Khasanah , N. Bolouki , H.H. Chu , T. Moritaka , Y. Sakawa , T. Sano , K. Tomita , S. Matsukiyo , T. Morita , H. Takabe , R. Yamazaki , R. Yasuhara , H. Habara , Y. Kuramitsu

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引用次数: 0

摘要

我们研究了激光产生的等离子体在自发磁场和外部磁场中的磁再连接竞争。利用自发射成像技术测量的等离子体结构的时间演变显示了等离子体的垂直膨胀和水平分离，这可能分别是自发磁场和外部磁场中再连接外流的特征。由于自发磁场中的外流在外部磁场存在时并不明显，因此外部磁场可以抑制自发磁场中的磁性再连接。

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Competition of magnetic reconnections in self-generated and external magnetic fields

We investigate the competition of magnetic reconnections in self-generated and external magnetic fields in laser-produced plasmas. The temporal evolution of plasma structures measured with self-emission imaging shows the vertical expansions and horizontal separation of plasma, which can be signatures of reconnection outflows in self-generated and external magnetic fields, respectively. Because the outflows in self-generated magnetic fields are not clear in the presence of the external magnetic field, the external magnetic field can suppress the magnetic reconnection in self-generated magnetic fields.

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来源期刊

High Energy Density Physics PHYSICS, FLUIDS & PLASMAS-

CiteScore

4.20

自引率

6.20%

发文量

审稿时长

6-12 weeks

期刊介绍： High Energy Density Physics is an international journal covering original experimental and related theoretical work studying the physics of matter and radiation under extreme conditions. ''High energy density'' is understood to be an energy density exceeding about 1011 J/m3. The editors and the publisher are committed to provide this fast-growing community with a dedicated high quality channel to distribute their original findings. Papers suitable for publication in this journal cover topics in both the warm and hot dense matter regimes, such as laboratory studies relevant to non-LTE kinetics at extreme conditions, planetary interiors, astrophysical phenomena, inertial fusion and includes studies of, for example, material properties and both stable and unstable hydrodynamics. Developments in associated theoretical areas, for example the modelling of strongly coupled, partially degenerate and relativistic plasmas, are also covered.