Relative intensities and predicted new bands of the A (E – X) and B (D – A) systems of ZrO

Abstract

Values of revised molecular constants for the ground state of the ZrO molecule are used to evaluate the Morse potential Franck-Condon intensity factors and r-centroids for bands of the E 1 Sigma(+) - X 1 Sigma(+) and D Delta - A Delta transitions. The results suggest the need for further laboratory study of the band systems in the 3500 6000 A wavelength region. Expected positions of unobserved bands are presented for use in spectral studies of cool S-stars.