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Nonlinear force-free configurations in cylindrical geometry

Published online by Cambridge University Press:  20 April 2020

Maxim Lyutikov*
Affiliation:
Department of Physics and Astronomy, Purdue University, 525 Northwestern Avenue, West Lafayette, IN47907-2036, USA
*
Email address for correspondence: lyutikov@purdue.edu

Abstract

We find a new family of solutions for force-free magnetic structures in cylindrical geometry. These solutions have radial power-law dependence and are periodic but non-harmonic in the azimuthal direction; they generalize the vacuum $z$-independent potential fields to current-carrying configurations.

Type
Research Article
Copyright
© Cambridge University Press 2020

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References

Aly, J. J. 1994 Asymptotic formation of a current sheet in an indefinitely sheared force-free field: an analytical example. Astron. Astrophys. 288, 10121020.Google Scholar
Bellan, P. M. 2000 Spheromaks: A Practical Application of Magnetohydrodynamic Dynamos and Plasma Self-Organization. World Scientific.CrossRefGoogle Scholar
Chandrasekhar, S. & Kendall, P. C. 1957 On force-free magnetic fields. Astrophys. J. 126, 457-+.CrossRefGoogle Scholar
Grad, H. 1967 Toroidal containment of a plasma. Phys. Fluids 10 (1), 137154.CrossRefGoogle Scholar
Lundquist, S. 1951 On the stability of magneto-hydrostatic fields. Phys. Rev. 83, 307311.CrossRefGoogle Scholar
Lynden-Bell, D. & Boily, C. 1994 Self-similar solutions up to flashpoint in highly wound magnetostatics. Mon. Not. R. Astron. Soc. 267, 146.CrossRefGoogle Scholar
Priest, E. & Forbes, T. 2000 Magnetic Reconnection. Cambridge University Press.CrossRefGoogle Scholar
Shafranov, V. D. 1966 Plasma equilibrium in a magnetic field. Rev. Plasma Phys. 2, 103-+.Google Scholar
Shibata, K. & Magara, T. 2011 Solar flares: magnetohydrodynamic processes. Living Rev. Sol. Phys. 8 (1), 6.CrossRefGoogle Scholar
Taylor, J. B. 1974 Relaxation of toroidal plasma and generation of reverse magnetic fields. Phys. Rev. Lett. 33, 11391141.CrossRefGoogle Scholar
Thompson, C., Lyutikov, M. & Kulkarni, S. R. 2002 Electrodynamics of magnetars: implications for the persistent X-ray emission and spin-down of the soft gamma repeaters and anomalous X-ray pulsars. Astrophys. J. 574 (1), 332355.CrossRefGoogle Scholar
Woltier, L.1958 Proc. Natl Acad. Sci. USA 44, 489.Google Scholar