Coronal Loop Reating by Resonant Absorption

  1. C. T. Russell,
  2. E. R. Priest and
  3. L. C. Lee
  1. Stefaan Poedts1,
  2. Marcel Gooseens1 and
  3. Wolfgang Kerner2

Published Online: 21 MAR 2013

DOI: 10.1029/GM058p0257

Physics of Magnetic Flux Ropes

Physics of Magnetic Flux Ropes

How to Cite

Poedts, S., Gooseens, M. and Kerner, W. (1990) Coronal Loop Reating by Resonant Absorption, in Physics of Magnetic Flux Ropes (eds C. T. Russell, E. R. Priest and L. C. Lee), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM058p0257

Author Information

  1. 1

    Astronomisch Instituut, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, B—3030 Heverlee, Belgium

  2. 2

    Max-Planck-Institut für Plasmaphysik, Euratom Association, Boltzmannstraße 2,D—8046 Garching Bei München, FRG

Publication History

  1. Published Online: 21 MAR 2013
  2. Published Print: 1 JAN 1990

ISBN Information

Print ISBN: 9780875900261

Online ISBN: 9781118663868

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Keywords:

  • Solar photosphere;
  • Magnetic flux;
  • Astrophysics

Summary

The heating of coronal loops by resonant absorption of Alfvén waves is studied in compressible, resistive magnetohydrodynamics by means of numerical simulations in which the loops are approximated by straight cylindrical, axisymmetric plasma columns. The incident waves, which excite the coronal loops, are modelled by a periodic external driver. The efficiency of the heating mechanism and the localization of the heating strongly depend on the characteristics of both the external source and the equilibrium. The numerical results show that resonant absorption is very efficient for typical coronal loop parameter values. A considerable part of the energy supplied by the external driver, is actually dissipated ohmically and converted into heat.