Theoretical study of the radiative properties of the A1Π-X1Σ+ system of the GeO molecule.
Résumé
Absolute oscillator strengths and related radiative properties of the A1Π-X1Σ+ transition of the GeO molecule have been determined from accurate ab initio MRCI calculations. The reported results include the electronic transition moment variation, absolute transition probabilities, absolute and relative vibronic oscillator strengths and radiative lifetimes of the lowest vibrational levels of the excited electronic 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 molecules.