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Title: Electromagnetic instability of thin reconnection layers: Comparison of three-dimensional simulations with MRX observations

Abstract

In this study, the influence of current-aligned instabilities on magnetic reconnection in weakly collisional regimes is investigated using experimental observations from Magnetic Reconnection Experiment (MRX) [M. Yamada et al., Phys. Plasmas 4, 1936 (1997)] and large-scale fully kinetic simulations. In the simulations as well as in the experiment, the dominant instability is localized near the center of the reconnection layer, produces large perturbations of the magnetic field, and is characterized by the wavenumber that is a geometric mean between electron and ion gyroradii k~(ρ eρ i) -1/2. However, both the simulations and the experimental observations suggest the instability is not the dominant reconnection mechanism under parameters typical of MRX.

Authors:
 [1];  [2];  [3];  [2];  [2];  [1]
  1. SciberQuest, Inc., Del Mar, CA (United States)
  2. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
OSTI Identifier:
1565007
Grant/Contract Number:  
AC02-05CH11231; AC02-09CH11466; AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 20; Journal Issue: 6; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Roytershteyn, V., Dorfman, S., Daughton, W., Ji, H., Yamada, M., and Karimabadi, H. Electromagnetic instability of thin reconnection layers: Comparison of three-dimensional simulations with MRX observations. United States: N. p., 2013. Web. doi:10.1063/1.4811371.
Roytershteyn, V., Dorfman, S., Daughton, W., Ji, H., Yamada, M., & Karimabadi, H. Electromagnetic instability of thin reconnection layers: Comparison of three-dimensional simulations with MRX observations. United States. doi:10.1063/1.4811371.
Roytershteyn, V., Dorfman, S., Daughton, W., Ji, H., Yamada, M., and Karimabadi, H. Fri . "Electromagnetic instability of thin reconnection layers: Comparison of three-dimensional simulations with MRX observations". United States. doi:10.1063/1.4811371. https://www.osti.gov/servlets/purl/1565007.
@article{osti_1565007,
title = {Electromagnetic instability of thin reconnection layers: Comparison of three-dimensional simulations with MRX observations},
author = {Roytershteyn, V. and Dorfman, S. and Daughton, W. and Ji, H. and Yamada, M. and Karimabadi, H.},
abstractNote = {In this study, the influence of current-aligned instabilities on magnetic reconnection in weakly collisional regimes is investigated using experimental observations from Magnetic Reconnection Experiment (MRX) [M. Yamada et al., Phys. Plasmas 4, 1936 (1997)] and large-scale fully kinetic simulations. In the simulations as well as in the experiment, the dominant instability is localized near the center of the reconnection layer, produces large perturbations of the magnetic field, and is characterized by the wavenumber that is a geometric mean between electron and ion gyroradii k~(ρeρi)-1/2. However, both the simulations and the experimental observations suggest the instability is not the dominant reconnection mechanism under parameters typical of MRX.},
doi = {10.1063/1.4811371},
journal = {Physics of Plasmas},
number = 6,
volume = 20,
place = {United States},
year = {2013},
month = {6}
}

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Cited by: 15 works
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