MQDO oscillator strengths and emission coefficients for electronic transitions in N2 and NO

The molecular-adapted quantum defect orbital (MQDO) method has been applied to the calculation of absorption oscillator strengths and Einstein emission coefficients for electronic transitions involving Rydberg states of N2 and NO. These compounds have been found to play an important role in the evolution of Earthʹs upper atmosphere. However, the difficulties encountered in both laboratory measurements and theoretical calculations on the photoabsorption of these compounds are responsible for the scarcity of data in the literature. Predictions of unknown transition probabilities for the NO molecule are presently given.