Relative band intensities in the atmospheric and infrared atmospheric systems of molecular oxygen

Abstract

Relative band intensity measurements have been made for the (0,0) and (0,1) bands of the (a1Δg–X3Σg−) system of oxygen at 1.27 μ and 1.58 μ, respectively, and for the (0,0), (0,1), and (0,2) bands of the (b1Σg+–X3Σg−) system of oxygen at 7619, 8645, and 9970, respectively. The (0,2) band of the (1Σg+–3Σg−) system of oxygen has been observed for the first time. Emission was also observed from the (1,0) and (1,1) bands of this system. The observed relative band intensities are compared to those of earlier workers and to relative intensities calculated from theoretical Franck–Condon factors.