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
Article

Abstract

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).

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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

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