Abstract
Magnetic‐rotation spectra of the 1–0 band of 14N16O and 15N16O as a function of pressure, path length, and field intensity have been obtained. A phenomenological theory of magnetic‐rotation spectra applicable to this case is outlined. Computer predictions made on the basis of this theory, including the effects of finite resolution, explain the major features of the observed magnetic‐rotation signals. These features include the doublet structure of the lines at high pressure and the intensity contour of the 2 subband.