Radiative lifetime and probabilities of the Cl2 optical transitions in visible and near-IR spectrum

Based on the measurements of the absolute emissivity of the thermally heated molecular chlorine in the shock wave flow, the redetermination of radiative characteristics of the Cl2 B3(Pi) o+u yields X1(Sigma) +g and A1(Pi) 1u yields X1(Sigma) +g electronic transitions was made with the aim of pre-laser studying a potential new laser active media. Reasons for errors in previous works are discussed.