Electrostatic Turbulence in Electron Temperature Jumps of the Solar Atmosphere
We discuss the connection of the formation and properties of solar atmosphere transition region
characterized by a steep electron temperature gradient with electrostatic turbulence, which provides a high
effective electron collision frequency and a low thermal conductivity of the medium. A simple dependence
of the noise electric field in the transition region on the effective collision frequency has been derived. Based
on known experimental models of the solar atmosphere, we have estimated the height dependence of the
thermal conductivity and the strength of the noise electric fields for a tube with a relatively weak magnetic
field passing from the chromosphere into the corona.