Abstract
Some rough analytical approximations are proposed to describe the behavior of the shock wave model of QSO'S proposed by Daltabuit and Cox (1972) for 10^7 cm-3 ≤ n < 10^8 cm-3 and 700 km sec-1 ≤ v < 1000 km sec-1. The possible effect of radiation pressure on the evolution of this model is studied.
