Absorption Spectrum of the Oxygen Molecule in the 55-65-Gc/sec Region

Abstract
The theory of the rotational spectrum of the oxygen molecule developed elsewhere is revised by correcting the calculation of the effects of centrifugal distortion. Precise measurements of the center frequencies of 8 of the predicted absorption lines were made. These measurements are combined with measurement of 12 lines made elsewhere to obtain the values of 7 parameters appearing in the theory.