Emission from a weakly ionized semibounded plasma

The influence of the collisions between charged and neutral particles on the spectral distributions of spontaneous emission from semibounded partially ionized plasma is considered in terms of the model representations. Main attention is paid to elucidating the relative role of different dissipative mechanisms (collisionless electron and ion Landau damping and collisions with neutrals) in formation of the radiation spectrum in case of the half-space of weakly ionized plasma. The applicability of the hydrodynamical theory of the thermal emission from semibounded plasma is studied