Abstract
Franck-Condon factor arrays have been computed numerically to high vibrational quantum numbers for the band systems N 2 : C 3 II - B 3 II ( Second Positive ) N 2 : B 3 II - A 3 ∑ ( First Positive ) N 2 : A 3 ∑ - X 1 ∑ ( Vegard Kaplan ) N 2 : a 1 II - X 1 ∑ ( Lyman-Birge-Hopfield ) N 2 + ; A 2 II - X 2 ∑ ( Meinel ) N 2 + : B 2 ∑ - X 2 ∑ ( First Negative ) and for the following ionization transitions N 2 X 1 ∑ → N 2 + X 2 ∑ N 2 X 1 ∑ → N 2 + A 2 II N 2 X 1 ∑ → N 2 + B 2 ∑ .