Heat transport from the region of local electron heating in a plasma

The initial stage of the one-dimensional expansion of a hot electron cloud into a "warm" plasma (i.e., into a plasma with a finite electron temperatur e) is studied with allowance for plasma turbulence. It is shown that, in a nonturbulent plasma or in a plasma with sufficiently weak turbulence, count erstreaming warm plasma flows interpenetrate one another; in this process, the plasma flows are accelerated and form beams escaping from the heating r egion. A stronger turbulence gives rise to electron heat waves that also pr opagate away from the heating region. (C) 2001 MAIK "Nauka/Interperiodica".