Solar coronal heating by plasma waves

R. Bingham, P.K. Shukla, Bengt Eliasson, L. Stenflo

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The solar coronal plasma is maintained at temperatures of millions of degrees, much hotter than the photosphere, which is at a temperature of just 6000 K. In this paper, the plasma particle heating based on the kinetic theory of wave-particle interactions involving kinetic Alfvén waves and lower-hybrid drift modes is presented. The solar coronal plasma is collisionless and therefore the heating must rely on turbulent wave heating models, such as lower-hybrid drift models at reconnection sites or the kinetic Alfvén waves. These turbulent wave modes are created by a variety of instabilities driven from below. The transition region at altitudes of about 2000 km is an important boundary chromosphere, since it separates the collision-dominated photosphere/chromosphere and the collisionless corona. The collisionless plasma of the corona is ideal for supporting kinetic wave-plasma interactions. Wave-particle interactions lead to anisotropic non-Maxwellian plasma distribution functions, which may be investigated by using spectral analysis procedures being developed at the present time.
Original languageEnglish
Pages (from-to)135-158
Number of pages24
JournalJournal of Plasma Physics
Volume76
Issue number2
DOIs
Publication statusPublished - Apr 2010

Fingerprint

plasma waves
heating
wave-particle interactions
collisionless plasmas
chromosphere
photosphere
coronas
kinetics
plasma interactions
kinetic theory
spectrum analysis
distribution functions
collisions
temperature

Keywords

  • solar coronal heating
  • plasma waves

Cite this

Bingham, R. ; Shukla, P.K. ; Eliasson, Bengt ; Stenflo, L. / Solar coronal heating by plasma waves. In: Journal of Plasma Physics. 2010 ; Vol. 76, No. 2. pp. 135-158.
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Solar coronal heating by plasma waves. / Bingham, R.; Shukla, P.K.; Eliasson, Bengt; Stenflo, L.

In: Journal of Plasma Physics, Vol. 76, No. 2, 04.2010, p. 135-158.

Research output: Contribution to journalArticle

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AU - Bingham, R.

AU - Shukla, P.K.

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AU - Stenflo, L.

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