Solar Physics

, Volume 76, Issue 2, pp 239–259 | Cite as

Wave propagation in a magnetically structured atmosphere

III: The slab in a magnetic environment
  • P. M. Edwin
  • B. Roberts


The propagation of waves in a magnetic slab embedded in a magnetic environment is investigated. The possible modes of propagation are examined from the general dispersion relation, both analytically and numerically, for disturbances which are evanescent in the environment. Approximate dispersion relations governing propagation in a slender slab of field are derived both from the general dispersion relation and from an application of the slender flux tube approximation.

Several different situations, representative of both photospheric and coronal conditions, are considered. In general, the structures are found to support both fast and slow, body and surface, waves. Under coronal conditions, for two dimensional propagation, disturbances propagate as fast and slow body waves. The fast body waves are analogous to the ducted shear waves of seismology (Love waves).


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Chakraborty, B. B.: 1968, Prog. Theor. Phys. 40, 210.Google Scholar
  2. Defouw, R. J.: 1976, Astrophys. J. 209, 266.Google Scholar
  3. Ewing, W. M., Jardetzky, W. S., and Press, F.: 1957, Elastic Waves in Layered Media, McGraw-Hill.Google Scholar
  4. Giovanelli, R. G.: 1975, Solar Phys. 44, 299.Google Scholar
  5. Goedbloed, J. P.: 1971, Physica 53, 412.Google Scholar
  6. Love, A. E. H.: 1911, Some Problems of Geodynamics, Chapter XI, C.U.P.Google Scholar
  7. Parker, E. N.: 1979, Cosmical Magnetic Fields, Chapter 8, Oxford.Google Scholar
  8. Roberts, B.: 1981a, Solar Phys. 69, 27 (Paper I).Google Scholar
  9. Roberts, B.: 1981b, Solar Phys. 69, 39 (Paper II).Google Scholar
  10. Roberts, B. and Webb, A. R.: 1978, Solar Phys. 56, 5.Google Scholar
  11. Roberts, B. and Webb, A. R.: 1979, Solar Phys. 64, 77.Google Scholar
  12. Spruit, H. C.: 1982, Solar Phys. 75, 3.Google Scholar
  13. Uberoi, C. and Somasundaram, K.: 1980, Plasma Phys. 22, 747.Google Scholar
  14. Webb, A. R.: 1980, Ph.D. Thesis, St. Andrews University.Google Scholar
  15. Wentzel, D. G.: 1979a, Astrophys. J. 227, 319.Google Scholar
  16. Wentzel, D. G.: 1979b, Astron. Astrophys. 76, 20.Google Scholar
  17. Wilson, P. R.: 1980, Astron. Astrophys. 87, 121.Google Scholar

Copyright information

© D. Reidel Publishing Co. 1982

Authors and Affiliations

  • P. M. Edwin
    • 1
  • B. Roberts
    • 1
  1. 1.Department of Applied MathematicsUniversity of St. AndrewsSt. AndrewsScotland

Personalised recommendations