Theoretical far-wing line shape and absorption for high-temperature CO2

Theoretical results for the far-wing line shapes and corresponding absorpti on coefficients in the high-frequency wing of the nu(3) fundamental band of self-broadened CO2 are presented for a humber of temperatures between 218 and 751 K. These first-principles calculations are made assuming binary col lisions within the framework of a quasi-static theory with a more accurate interaction potential than in previous calculations. The theoretical result s are compared with existing laboratory data and are in good agreement for all the temperatures considered. (C) 1999 Optical Society of America.