INFRARED TRANSITIONS PROBABILITIES AND RADIATIVE OPACITY OF SIO

Spectroscopic properties of SiO have been calculated from highly corre lated wave functions. The computed dipole moments for v = 0 - 3 agree well with the experimental data of Raymonda et al. (1970). By comparin g the present results with previous theoretical works, we estimate tha t the resulting line strengths should be the most accurate to date. Th e Einstein coefficients for the fundamental and the first overtone (v less than or equal to 40 J less than or equal to 100) are larger than the currently used values of Tipping & Chackerian (1981), and should b e tested in models of stellar atmospheres.