Numerical study of line-tied magnetic reconnection

Solar Physics ◽  
1982 ◽  
Vol 81 (2) ◽  
pp. 303-324 ◽  
Author(s):  
T. G. Forbes ◽  
E. R. Priest
Keyword(s):  
Magnetic Reconnection ◽  
Numerical Study

scholarly journals Numerical study of the reconnection process between magnetic cloud and heliospheric current sheet

2018 ◽  
Vol 619 ◽  
pp. A82
Author(s):  
Man Zhang ◽  
Yu Fen Zhou ◽  
Xue Shang Feng ◽  
Bo Li ◽  
Ming Xiong
Keyword(s):  
Magnetic Reconnection ◽  
Current Sheet ◽  
Dynamic Process ◽  
Large Scale ◽  
Magnetic Cloud ◽  
Numerical Study ◽  
Three Dimensional ◽  
Heliospheric Current Sheet ◽  
Reconnection Process ◽  
Magnetic Filed

In this paper, we have used a three-dimensional numerical magnetohydrodynamics model to study the reconnection process between magnetic cloud and heliospheric current sheet. Within a steady-state heliospheric model that gives a reasonable large-scale structure of the solar wind near solar minimum, we injected a spherical plasmoid to mimic a magnetic cloud. When the magnetic cloud moves to the heliospheric current sheet, the dynamic process causes the current sheet to become gradually thinner and the magnetic reconnection begin. The numerical simulation can reproduce the basic characteristics of the magnetic reconnection, such as the correlated/anticorrelated signatures in V and B passing a reconnection exhaust. Depending on the initial magnetic helicity of the cloud, magnetic reconnection occurs at points along the boundary of the two systems where antiparallel field lines are forced together. We find the magnetic filed and velocity in the MC have a effect on the reconnection rate, and the magnitude of velocity can also effect the beginning time of reconnection. These results are helpful in understanding and identifying the dynamic process occurring between the magnetic cloud and the heliospheric current sheet.

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 Numerical study of non-gyrotropic electron pressure effects in collisionless magnetic reconnection

2021 ◽  
Vol 28 (7) ◽  
pp. 072108
Author(s):  
A. Sladkov ◽  
R. Smets ◽  
N. Aunai ◽  
A. Korzhimanov
Keyword(s):  
Magnetic Reconnection ◽  
Numerical Study ◽  
Pressure Effects ◽  
Electron Pressure

Numerical study of nonlinear forced magnetic reconnection

2001 ◽  
Vol 8 (1) ◽  
pp. 132-138 ◽  
Author(s):  
P. K. Browning ◽  
J. Kawaguchi ◽  
K. Kusano ◽  
G. E. Vekstein
Keyword(s):  
Magnetic Reconnection ◽  
Numerical Study ◽  
Forced Magnetic Reconnection

Numerical study of energy conversion mechanism of magnetic reconnection in the presence of high guide field

2015 ◽  
Vol 55 (8) ◽  
pp. 083014 ◽  
Author(s):  
S. Inoue ◽  
Y. Ono ◽  
H. Tanabe ◽  
R. Horiuchi ◽  
C.Z. Cheng
Keyword(s):  
Energy Conversion ◽  
Magnetic Reconnection ◽  
Numerical Study ◽  
Guide Field

A numerical study of flaring loop dynamics during magnetic reconnection

2002 ◽  
Vol 29 (10) ◽  
pp. 1445-1449
Author(s):  
C. Fang ◽  
P.F. Chen ◽  
Y.H. Tang ◽  
X.H. Di
Keyword(s):  
Magnetic Reconnection ◽  
Numerical Study ◽  
Loop Dynamics
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