Research on P-branch Spectral Lines of AlO Molecule in B²∑⁺-X²∑⁺ System

In this study, the accurate P-branch transitional spectral lines of(5, 6) band in B²∑⁺-X²∑⁺ electronic state transition of AlO molecule are obtained by using the new analytical formula, which is presented to generate accurate P-branch emission spectral lines for diatomic molecules.The theoretical formula generates correct values of the unknown emission spectral lines up to J = 80, which may not be available experimentally for this band.