Published May 2010 | Version v1
Journal article Metadata-only

Effects of line-tying on magnetohydrodynamic instabilities and current sheet formation

Creators

  • 1. Space Science Center, Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas, and Center for Integrated Computation and Analysis of Reconnection and Turbulence, University of New Hampshire, Durham, New Hampshire 03824 (United States)
  • 2. Department of Physics, Department of Astronomy, and Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas, University of Wisconsin, Madison, Wisconsin 53706 (United States)

Description

An overview of some recent progress on magnetohydrodynamic stability and current sheet formation in a line-tied system is given. Key results on the linear stability of the ideal internal kink mode and resistive tearing mode are summarized. For nonlinear problems, a counterexample to the recent demonstration of current sheet formation by Low and Janse [Astrophys. J. 696, 821 (2009)] is presented, and the governing equations for quasistatic evolution of a boundary driven, line-tied magnetic field are derived. Some open questions and possible strategies to resolve them are discussed.

Additional details

Identifiers

DOI
10.1063/1.3398486;
arXiv
arXiv:1003.5927v1;

Publishing Information

Journal Title
Physics of Plasmas
Journal Volume
17
Journal Issue
5
Journal Page Range
p. 055707-055707.9
ISSN
1070-664X
CODEN
PHPAEN

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41101636
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
CURRENTS; KINK INSTABILITY; MAGNETIC FIELDS; NONLINEAR PROBLEMS; TEARING INSTABILITY
Descriptors DEC
INSTABILITY; PLASMA INSTABILITY; PLASMA MACROINSTABILITIES

Optional Information

Notes
(c) 2010 American Institute of Physics