Current studies of PH3

Recent quantitative spectroscopic studies of the PH3 fundamentals in the 10 and 4.5 micrometer regions resulted in line parameters applicable to spectral radiative models of planetary atmospheres. These include theoretical line parameters for the (nu sub 2 (A sub 1), nu sub 4 (E)) and (nu sub 1 (A sub 1), nu sub 3 (E)) regions, and empirical line parameters for the 2 nu sub 2, 2 nu sub 4 and nu sub 2 + nu sub 4 bands overlapping the (nu sub 1, nu sub 3) region. The theoretical line parameters were normalized to previously published values derived from low resolution spectra and are presented.