scholarly journals Magnetic island dynamics in magnetic reconnection in UTST experiments

2018 ◽  
Vol 25 (1) ◽  
pp. 012126 ◽  
Author(s):  
S. Kamio ◽  
M. Inomoto ◽  
K. Yamasaki ◽  
T. Yamada ◽  
C. Z. Cheng ◽  
...  
Keyword(s):  
Magnetic Reconnection ◽  
Magnetic Island ◽  
Island Dynamics

scholarly journals Modeling of magnetic island formation in magnetic reconnection experiment

1999 ◽  
Vol 6 (4) ◽  
pp. 1253-1257 ◽  
Author(s):  
T.-H. Watanabe ◽  
T. Hayashi ◽  
T. Sato ◽  
M. Yamada ◽  
H. Ji
Keyword(s):  
Magnetic Reconnection ◽  
Magnetic Island ◽  
Island Formation

scholarly journals Particle Orbits, Trapping, and Acceleration in a Filamentary Current Sheet Model

1994 ◽  
Vol 142 ◽  
pp. 719-728
Author(s):  
Bernhard Kliem
Keyword(s):  
Particle Acceleration ◽  
Electric Field ◽  
Test Particle ◽  
Solar Flares ◽  
Acceleration Of Particles ◽  
Acceleration Process ◽  
Two Dimensional ◽  
Magnetic Island ◽  
Particle Orbits ◽  
Island Dynamics

AbstractTest particle orbits in the two-dimensional Fadeev equilibrium with a perpendicular electric field added are analyzed to show that impulsive bursty reconnection, which has been proposed as a model for fragmentary energy release in solar flares, may account also for particle acceleration to (near) relativistic energies within a fraction of a second. The convective electric field connected with magnetic island dynamics can play an important role in the acceleration process.Subject headings: acceleration of particles — MHD — plasmas — Sun: corona — Sun: flares

Effect of plasma-β on the onset of plasmoid instability in Sweet–Parker current sheets

2014 ◽  
Vol 80 (5) ◽  
pp. 655-665 ◽  
Author(s):  
H. Baty
Keyword(s):  
Magnetic Reconnection ◽  
Temperature Increase ◽  
Numerical Study ◽  
Two Dimensional ◽  
Magnetic Island ◽  
Current Sheets ◽  
A Value ◽  
Similar Dependence ◽  
Definition Of ◽  
Local Temperature Increase

AbstractA numerical study of magnetic reconnection in two-dimensional resistive magnetohydrodynamics for Sweet–Parker current sheets that are subject to plasmoid instability is carried out. The effect of the initial upstream plasma-β on the critical Lundquist number Sc for the onset of plasmoid instability is studied. Our results indicate a weak dependence, with a value of Sc ≃ 1.5 × 104 in the limit of zero β, and a value of Sc ≃ 1 × 104 in the opposite high β regime (β ≫ 1). A similar dependence was previously obtained (Ni et al. 2012 Phys. Plasm. 19, 072902), but with a somewhat much larger variation, that can be largely attributed to the different configuration setup used in their study, and also to the definition of the Lundquist number. This conclusion does not depend significantly on the equilibrium used, i.e. both initial configurations with either plasma density or temperature spatial variations lead to very similar results. Finally, we show that the inner plasmoid structure appears as an under-dense hotted magnetic island, with a local temperature increase that is noticeably strengthened for low β cases.

scholarly journals Two-fluid magnetic island dynamics in slab geometry. I. Isolated islands

2005 ◽  
Vol 12 (2) ◽  
pp. 022307 ◽  
Author(s):  
Richard Fitzpatrick ◽  
François L. Waelbroeck
Keyword(s):  
Magnetic Island ◽  
Slab Geometry ◽  
Island Dynamics ◽  
Two Fluid

Weibel instability and structures of magnetic island in anti-parallel collisionless magnetic reconnection

2011 ◽  
Vol 18 (7) ◽  
pp. 072105 ◽  
Author(s):  
San Lu ◽  
Quanming Lu ◽  
Xi Shao ◽  
Peter H. Yoon ◽  
Shui Wang
Keyword(s):  
Magnetic Reconnection ◽  
Magnetic Island ◽  
Weibel Instability
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