THEORETICAL-STUDY OF THE RADIATIVE PROPERTIES OF THE A(1)PI-X(1)SIGMA(+) SYSTEM OF THE GEO MOLECULE

Absolute oscillator strengths and related radiative properties of the A(1)II-X(1) Sigma(+) transition of the GeO molecule have been determin ed from accurate ab initio MRCI calculations. The reported results inc lude the electronic transition moment variation, absolute transition p robabilities, absolute and relative vibronic oscillator strengths and radiative lifetimes of the lowest vibrational levels of the excited el ectronic state. The few experimental data are critically discussed in the light of the present work. Comparison of GeO with CO and SiO show the close similarity of the transition mechanism in the three molecule s.