Einstein A coefficients for rovibronic lines of the A 2 Π → X 2Σ+ and B′ 2Σ+→ X 2 Σ+ transitions of MgH

Einstein A coefficients have been calculated for rovibronic lines of the A 2 → X 2 + and B 2 + → X 2 + transitions of 24 MgH. Using the experimentally determined analytic potential energy curve for the X 2 + state, and the Rydberg–Klein–Rees potentials for the A 2 and B 2 + states, combined with the most recent ab initio transition dipole moments, rovibronic transition moments were computed. The rovibronic transition frequencies were obtained accurately by subtracting the published term values of the X 2 + , A 2 and B 2 + states. Using the rovibronic transition dipole moments, transition frequencies and the H¨ onl–London factors, the Einstein A coefficients were calculated individually for ∼30 000 rovibronic lines of the A 2 → X 2 + and B 2 + → X 2 + transitions of 24 MgH.