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Fast/slow Alfven waves in High/Low Beta Plasma?

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  1. Mar 12, 2014 #1
    Guys can you please tell me how fast/slow Alfven waves propogate in High/Low Beta Plasma? I need to derive equation cannot find any clue on that! Please be so kind to help me please!!!:uhh:
     
  2. jcsd
  3. Mar 12, 2014 #2

    maajdl

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  4. Mar 12, 2014 #3

    Chronos

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    MHD wave theory borders on crackpot.
     
  5. Mar 12, 2014 #4

    berkeman

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    Thread closed for Moderation...
     
  6. Mar 13, 2014 #5

    berkeman

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    Thread re-opened.
     
  7. Mar 13, 2014 #6
    Crackpot? That's news to me. Alfven won the Nobel Prize. Aren't Alfven waves just sound waves in a plasma?

    It is true that Alfven came up with a cosmological theory that turned out to be wrong and that crackpots have latched onto it, but Alfven can't be blamed for that.
     
  8. Mar 13, 2014 #7

    maajdl

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    You can find the general theory of plasma waves in hot (or cold) plasmas (any beta) in this chapter:

    http://psl.postech.ac.kr/material/lecture/chap3.pdf

    In principle, you can identify the cold limit and the Alfven wave and see how it transform in hot plasmas.

    See also the cold text:

    http://psl.postech.ac.kr/material/lecture/chap1.pdf

    The reference above is rather lengthy, you may find similar material in a more compact presentation, with google.
    My preferred reference on plasma electrodynamics is:

    Principles of plasma electrodynamics, Springer

    A more specialized book on Alfven waves might help you too:

    The Physics of Alfven Waves
     
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