The role of magnetic reconnection and differential rotation in spheromak formation

1985 ◽  
Vol 28 (10) ◽  
pp. 3154 ◽  
Author(s):  
P. N. Guzdar ◽  
John M. Finn ◽  
K. W. Whang ◽  
A. Bondeson
Keyword(s):  
Magnetic Reconnection ◽  
Differential Rotation ◽  
Spheromak Formation

scholarly journals Regulation of the normalized rate of driven magnetic reconnection through shocked flux pileup

2021 ◽  
Vol 87 (3) ◽  
Author(s):  
Joseph Olson ◽  
Jan Egedal ◽  
Michael Clark ◽  
Douglass A. Endrizzi ◽  
Samuel Greess ◽  
...  
Keyword(s):  
Magnetic Reconnection ◽  
System Size ◽  
Force Balance ◽  
Absolute Rate ◽  
Reconnection Rate ◽  
Supersonic Plasma ◽  
Reconnection Layer ◽  
Inflow Conditions ◽  
Theoretical Results

Magnetic reconnection is explored on the Terrestrial Reconnection Experiment (TREX) for asymmetric inflow conditions and in a configuration where the absolute rate of reconnection is set by an external drive. Magnetic pileup enhances the upstream magnetic field of the high-density inflow, leading to an increased upstream Alfvén speed and helping to lower the normalized reconnection rate to values expected from theoretical consideration. In addition, a shock interface between the far upstream supersonic plasma inflow and the region of magnetic flux pileup is observed, important to the overall force balance of the system, thereby demonstrating the role of shock formation for configurations including a supersonically driven inflow. Despite the specialized geometry where a strong reconnection drive is applied from only one side of the reconnection layer, previous numerical and theoretical results remain robust and are shown to accurately predict the normalized rate of reconnection for the range of system sizes considered. This experimental rate of reconnection is dependent on system size, reaching values as high as 0.8 at the smallest normalized system size applied.

The role of electron heat flux in guide-field magnetic reconnection

2004 ◽  
Vol 11 (12) ◽  
pp. 5387-5397 ◽  
Author(s):  
Michael Hesse ◽  
Masha Kuznetsova ◽  
Joachim Birn
Keyword(s):  
Heat Flux ◽  
Magnetic Reconnection ◽  
Guide Field ◽  
Electron Heat

scholarly journals The role of guide field in magnetic reconnection driven by island coalescence

2017 ◽  
Vol 24 (2) ◽  
pp. 022124 ◽  
Author(s):  
A. Stanier ◽  
W. Daughton ◽  
Andrei N. Simakov ◽  
L. Chacón ◽  
A. Le ◽  
...  
Keyword(s):  
Magnetic Reconnection ◽  
Guide Field ◽  
Island Coalescence

scholarly journals Instabilities of Uniformly Rotating Disks

1996 ◽  
Vol 169 ◽  
pp. 349-350 ◽  
Author(s):  
P. Vauterin ◽  
H. Dejonghe
Keyword(s):  
Distribution Function ◽  
Differential Rotation ◽  
Mass Concentration ◽  
Expansion Method ◽  
Rotating Disks ◽  
Central Mass ◽  
Reasonable Approximation ◽  
Central Regions ◽  
Series Expansion Method

We explore a series expansion method to calculate the instabilities and the structure of the perturbations for a variety of uniformly rotating finite stellar disks. This survey focuses on the role of the distribution function in stability analyses. Although the potential does not show differential rotation, it will in many cases be a reasonable approximation for the disk in the central regions of galaxies without massive central mass concentration.

scholarly journals The role of rotation in Luminous Blue Variables

1989 ◽  
Vol 113 ◽  
pp. 205-210
Author(s):  
S.R. Sreenivasan ◽  
W.J.F. Wilson
Keyword(s):  
Significant Role ◽  
Differential Rotation ◽  
Luminous Blue Variables

AbstractWe demonstrate that differential rotation plays a significant role in the essential features of LBV’s, among other types of objects.

Magnetic Reconnection in the Ionosphere of Mars: The Role of Collisions

2020 ◽  
Vol 125 (9) ◽  
Author(s):  
T. E. Cravens ◽  
C. M. Fowler ◽  
D. Brain ◽  
A. Rahmati ◽  
S. Xu ◽  
...  
Keyword(s):  
Magnetic Reconnection

scholarly journals Experimental Verification of the Role of Electron Pressure in Fast Magnetic Reconnection with a Guide Field

2017 ◽  
Vol 118 (12) ◽  
Author(s):  
W. Fox ◽  
F. Sciortino ◽  
A. v. Stechow ◽  
J. Jara-Almonte ◽  
J. Yoo ◽  
...  
Keyword(s):  
Magnetic Reconnection ◽  
Experimental Verification ◽  
Electron Pressure ◽  
Guide Field
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