Calculated tabulations of H_2O line broadening by H_2O, N_2, O_2, and CO_2 at high temperature

We present calculations of the temperature dependence of H(2)O pressure broadening parameters by H(2)O, CO(2), N(2), and O(2). They were made for Q-lines with a theoretical model which provides a correct treatment of close collisions and has been widely tested. The results should be useful for Raman spectra calculations. A simple law is proposed to deduce halfwidths of P- and R-lines from the Q-line results. The accuracy of this law at high temperature is demonstrated. A simple analytical representation of a constant halfwidth approximation is also given.