Astrophysics and Space Science

, Volume 84, Issue 1, pp 247–250 | Cite as

Note on the stability of parallel magnetic fields

  • A. Satya Narayanan
  • K. Somasundaram
Letters to the Editor


The stability characteristics of parallel magnetic fields when fluid motions are present along the lines of force is studied. The stability criterion for both symmetric (m=0) and asymmetric (m=1) modes are discussed and the results obtained by Trehan and Singh (1978) are amended in the present study. The results obtained for the cylindrical geometry are shown to play an important role forka<4, wherek is the wave number,a is the radius of the cylinder, compared to the results obtained by Geronicolas (1977) for the slab geometry.


Magnetic Field Stability Criterion Fluid Motion Stability Characteristic Cylindrical Geometry 
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  1. Geronicolas, E. A.: 1977,Astrophys. J. 214, 607.Google Scholar
  2. Trehan, S. K. and Singh, M.: 1978,Astrophys. Space Sci 53, 165.Google Scholar

Copyright information

© D. Reidel Publishing Company 1982

Authors and Affiliations

  • A. Satya Narayanan
    • 1
  • K. Somasundaram
    • 1
  1. 1.Department of Applied MathematicsIndian Institute of ScienceBangaloreIndia

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