Generalized Wiedemann - Franz law and temperature jump in space plasmas with ion - acoustic turbulence
In this Letter, the generalized Wiedemann-Franz law for the non-isothermic quasi-neutral plasma with developed ion-acoustic turbulence is proved. This law determines the relationship between electrical and thermal conductivities in a plasma with well-developed ion-acoustic turbulence. The anomalously low thermal conductivity, which leads to the formation of high temperature gradients in the zone of the temperature jump, is explained. Results are used to explain some properties of the solar chromosphere-corona transition region.