RADIATIVE COOLING OF A SHOCK WITH ACCOUNT FOR ELECTRON HEAT-CONDUCTION AND ENERGY-EXCHANGE BETWEEN IONS AND ELECTRONS

A solution is found for stationary radiative cooling of a planar, one- dimensional flow of ionized hydrogen through the front of a shock wave . The energy exchange between electrons and protons, electron heat con duction, and bremsstrahlung cooling are taken into account. The veloci ty of the unperturbed gas relative to the front is taken to be in the interval 3000 km/s < u(0) < 10 000 km/s. The calculated radiation spec trum is presented in the form of the dependence of the color temperatu re on the photon energy E in the interval 0.5 keV < E < 10 keV. The co lor temperature grows monotically with E, but remains substantially lo wer than the shock-front temperature.