Abstract
This paper presents a problem on the contour of a spectral line far off from its center. Integral representation of the absorption coefficient obtained in the paper by Anderson [ Phys. Rev. 76, 647 ( 1949)] is used as a base. The problem is solved within adiabatic and binary collisions. Asymptotic methods are used for estimating the integrals over the collision parameters. Two formulas are obtained for the shape of line wings, one of which is of exponential form. On the basis of the theory developed, an interpretation is given for the radiation absorbed beyond the 4.3-μ band of CO2 due to the strong line wings near the band center.
© 1973 Optical Society of America
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