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Title: On the value of the reconnection rate

Journal Article · · Journal of Plasma Physics

Numerical simulations have consistently shown that the reconnection rate in certain collisionless regimes can be fast, of the order of $$0.1v_{A}B_{u}$$, where$$v_{A}$$and$$B_{u}$$are the Alfven speed and the reconnecting magnetic field upstream of the ion diffusion region. This particular value has been reported in myriad numerical simulations under disparate conditions. But, despite decades of research, the reasons underpinning this specific value remain mysterious. We present an overview of this problem and discuss the conditions under which the '0.1 value' is attained. Finally, we explain why this problem should be interpreted in terms of the ion diffusion region length.

Research Organization:
Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-09CH-11466.
OSTI ID:
1353403
Journal Information:
Journal of Plasma Physics, Vol. 82, Issue 06; ISSN 0022-3778
Publisher:
Cambridge University PressCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 52 works
Citation information provided by
Web of Science

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Cited By (8)

Study of magnetic reconnection in large-scale magnetic island coalescence via spatially coupled MHD and PIC simulations journal August 2018
Was the cosmic ray burst detected by the GRAPES-3 muon telescope on 22 June 2015 caused by a transient weakening of the geomagnetic field or by an interplanetary anisotropy? journal April 2018
The Interplay of Magnetically Dominated Turbulence and Magnetic Reconnection in Producing Nonthermal Particles journal November 2019
FINMHD: An Adaptive Finite-element Code for Magnetic Reconnection and Formation of Plasmoid Chains in Magnetohydrodynamics journal July 2019
Why does steady-state magnetic reconnection have a maximum local rate of order 0.1? text January 2016
3D magnetic reconnection and its application to solar flares text January 2016
A Review of the 0.1 Reconnection Rate Problem text January 2017
Relativistic Nonthermal Particle Acceleration in Two-Dimensional Collisionless Magnetic Reconnection text January 2020

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