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Magnetothermal instability of plasmas in a horizontal magnetic field

Phys. Plasmas 16, 102109 (2009); doi:10.1063/1.3255718

Published 29 October 2009

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Haijun Ren,1,2 Zhengwei Wu,1,2,3 Jintao Cao,1 and Paul K. Chu2
1CAS Key Laboratory of Basic Plasma Physics, University of Science and Technology of China, Hefei 230026, People's Republic of China
2Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
3The School of Physics, The University of Sydney, Sydney, New South Wales 2006, Australia
The linear buoyancy instability in a magnetized plasma, generally referred to as magnetothermal instability (MTI), is investigated by considering anisotropic heat conduction. The external magnetic field is assumed to be horizontal and background heat flux is not taken into account. The general dispersion relationship of the convective instability is derived. The growth rate of the MTI in fixed boundary condition is presented and discussed. The effect of density spacial gradient on the MTI is investigated. The magnetic field is shown to suppress the MTI and even quench the instability when the magnetic field is strong enough. Under the standard Wentzel–Kramaers–Brillouin approximation, our results could be simplified to a brief form reported by one previous paper [E. Quataert, Astrophys. J. 673, 758 (2008)]. ©2009 American Institute of Physics
History: Received 30 July 2009; accepted 6 October 2009; published 29 October 2009
Permalink: http://link.aip.org/link/?PHPAEN/16/102109/1
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KEYWORDS and PACS

Keywords
PACS
  • 52.35.Py
    Plasma macroinstabilities (hydromagnetic)
  • 52.25.Fi
    Plasma transport properties
  • 52.30.Cv
    Plasma magnetohydrodynamics
  • YEAR: 2009

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ISSN:
1070-664X (print)   1089-7674 (online)
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REFERENCES (19)
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  1. S. I. Braginskii, Rev. Plasma Phys. 1, 205 (1965).
  2. S. A. Balbus, Astrophys. J. 534, 420 (2000).
  3. I. J. Parrish and J. M. Stone, Astrophys. J. 633, 334 (2005).
  4. S. A. Balbus, Astrophys. J. 562, 909 (2001).
  5. E. Quataert, W. Dorland, and G. W. Hammett, Astrophys. J. 577, 524 (2002).
  6. P. Sharma, G. W. Hammett, and E. Quataert, Astrophys. J. 596, 1121 (2003).
  7. P. Sharma, G. W. Hammett, E. Quataert, and J. M. Stone, Astrophys. J. 637, 952 (2006).
  8. B. D. Chandran and T. J. Dennis, Astrophys. J. 642, 140 (2006).
  9. E. Quataert, Astrophys. J. 673, 758 (2008).
  10. I. J. Parrish and J. M. Stone, Astrophys. J. 664, 135 (2007).
  11. L. Spitzer, Physics of Fully Ionized Gases (Wiley, New York, 1962).
  12. J. Boussinesq, Théorie Analytique de la Chaleur (Gathier-Villars, Paris, 1903), Vol. 2.
  13. E. A. Spiegel and G. Veronis, Astrophys. J. 131, 442 (1960).
  14. L. Rayleigh, Scientific Papers (Cambridge University Press, Cambridge, 1900), Vol. 2, p. 200.
  15. G. I. Taylor, Proc. R. Soc. London, Ser. A 201, 192 (1950).
  16. W. Zhang, Z. Wu, and D. Li, Phys. Plasmas 12, 042106 (2005).
  17. L. L. Lao, K. H. Burrell, T. S. Casper, V. S. Chan, M. S. Chu, J. C. DeBoo, E. J. Doyle, R. D. Durst, C. B. Forest, C. M. Greenfield, R. J. Groebner, F. L. Hinton, Y. Kawano, E. A. Lazarus, Y. R. Lin-Liu, M. E. Mauel, W. H. Meyer, R. L. Miller, G. A. Navratil, T. H. Osborne, Q. Peng, C. L. Rettig, G. Rewoldt, T. L. Rhodes, B. W. Rice, D. P. Schissel, B. W. Stallard, E. J. Strait, W. M. Tang, T. S. Taylor, A. D. Turnbull, and R. E. Waltz, Phys. Plasmas 3, 1951 (1996).
  18. J. D. Lindl, P. Amendt, R. L. Berger, S. G. Glendinning, S. H. Glenzer, S. W. Haan, R. L. Kauffman, O. L. Landen, and L. J. Suter, Phys. Plasmas 11, 339 (2004).
  19. D. D. Ryutov, Phys. Plasmas 7, 4797 (2000).

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