Astrophysics and Space Science

, Volume 187, Issue 2, pp 291–306 | Cite as

The effects of Alfvén waves on heating plasma in post-flare loops

  • Jun Lin
  • Zhenda Zhang


In investigating the effects of collision Alfvén waves on the heating of a cool-type solar loop, like the post-flare loop, models are proposed, and the distributions of ion or electron density, temperature, pressure, and wave energy density are simulated. We assumed the magnetic field strength in the loop is about 100 G and found that Alfvén waves can propagate through the whole loop, that is to say, the decay length of collision Alfvén waves which we consider can reach to the height or length of the loop. Thus, the Alfvén wave heating is a considerable heating mechanism in cool loops. And we also found that the variations of density, pressure, and wave energy density are more significant than those of the temperature. In the whole loop, the temperature is of the order of ∼104 K. In comparison with other parameters, the temperature can be considered as homogeneous; hence, the heat conductive flux in the simulations is omitted.


Magnetic Field Energy Density Field Strength Wave Energy Magnetic Field Strength 
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Copyright information

© Kluwer Academic Publishers 1992

Authors and Affiliations

  • Jun Lin
    • 1
  • Zhenda Zhang
    • 2
  1. 1.Yunnan ObservatoryKunming, YunnanChina
  2. 2.Astronomy DepartmentNanjing UniversityNanjing, JiangsuChina

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