A theoretical study of thev"= 0, 1, 2 progressions of bands and adjoining photodissociation continua of the O₂Herzberg I system

Franck-Condon factors for v" = 0, 1, 2 and v' ⩽ 11 in the O2 Herzberg I system have been calculated for realistic Klein-Dunham potentials and accurate wave functions. Corresponding Franck-Condon densities have also been determined in the photodissociation continua associated with the three progressions of absorption bands Absorption cross sections are adequately known only for part of the continuum adjoining the v" = 0 progression. Combination of such measurements with the densities indicates that the electronic transition moment increases slowly with ν. The total oscillator strength in this continuum is found to be near 2 × 10-7.