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Regular version of the site

Article

Collective processes in the transition region of the solar atmosphere

Central European Astrophysical Bulletin. 2015. Vol. 39. P. 43-50.
Bespalov P., Savina O.N.

Special features of the ion-acoustic oscillation instability in the transition region
of a quiet solar atmosphere are examined. A model of electron distribution function,
which corresponds to the heat flux, under condition of absence of a particular beam, is
analyzed. It is shown that the heat flux-related anisotropy of the distribution function is
sufficient for the achievement of the threshold of ion-acoustic instability in the transition
region. A characteristic value of the electric field in ion-acoustic turbulence is estimated.