# Plasmoid instability in the semi-collisional regime

@article{Bhat2018PlasmoidII,
title={Plasmoid instability in the semi-collisional regime},
author={Pallavi Bhat and Nuno F. Loureiro},
journal={Journal of Plasma Physics},
year={2018},
volume={84}
}
• Published 14 April 2018
• Physics
• Journal of Plasma Physics
We investigate analytically and numerically the semi-collisional regime of the plasmoid instability, defined by the inequality $\unicode[STIX]{x1D6FF}_{\text{SP}}\gg \unicode[STIX]{x1D70C}_{s}\gg \unicode[STIX]{x1D6FF}_{\text{in}}$ , where $\unicode[STIX]{x1D6FF}_{\text{SP}}$ is the width of a Sweet–Parker current sheet, $\unicode[STIX]{x1D70C}_{s}$ is the ion sound Larmor radius and $\unicode[STIX]{x1D6FF}_{\text{in}}$ is the width of the boundary layer that arises in the plasmoid instability…
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## References

SHOWING 1-10 OF 85 REFERENCES

• Physics
• 2011
A numerical study of magnetic reconnection in the large-Lundquist-number ($S$), plasmoid-dominated regime is carried out for $S$ up to $10^7$. The theoretical model of Uzdensky {\it et al.} [Phys.
• Physics
• 2011
A set of reduced Hall magnetohydrodynamic (MHD) equations are used to evaluate the stability of large aspect ratio current sheets to the formation of plasmoids (secondary islands). Reconnection is
• Physics
Physical review. E, Statistical, nonlinear, and soft matter physics
• 2013
A two-dimensional (2D) linear theory of the instability of Sweet-Parker current sheets is developed in the framework of reduced magnetohydrodynamics, leading to the prediction that the critical Lundquist number for plasmoid instability in the Pm>>1 regime is S(crit)~10(4)Pm(1/2).
• Physics
Journal of Plasma Physics
• 2015
The Wisconsin Plasma Astrophysics Laboratory (WiPAL) is a flexible user facility designed to study a range of astrophysically relevant plasma processes as well as novel geometries that mimic
• Physics
Physical review letters
• 2017
This analysis predicts the existence of the subinertial, reconnection interval of MHD turbulence, with the estimated scaling of the Fourier energy spectrum E(k_{⊥})∝k-5/2, where k is the wave number perpendicular to the local mean magnetic field.
• Physics
• 2010
The Sweet–Parker layer in a system that exceeds a critical value of the Lundquist number (S) is unstable to the plasmoid instability. In this paper, a numerical scaling study has been done with an
• Physics
Physical review letters
• 2017
The repeated formation and ejection of plasmoids are observed, consistent with the predictions from semicollisional plasmoid theory.
• Physics
• 2013
A strong indication that fast reconnection regimes exist within resistive magnetohydrodynamics was given by the proof that the Sweet–Parker current sheet, maintained by a flow field with an
• Physics
• 2011
Recent progress in understanding the physics of magnetic reconnection is conveniently summarized in terms of a phase diagram which organizes the essential dynamics for a wide variety of applications
• Physics
• 2012
In large-scale systems of interest to solar physics, there is growing evidence that magnetic reconnection involves the formation of extended current sheets which are unstable to plasmoids (secondary