Millimeter- and submillimeter-wave spectrum of C17O. Rotational hyperfine structure analyzed using the Lamb-dip technique

Abstract

The pure rotational spectrum of C¹⁷O has been observed in the millimeter- and submillimeter-wave region using the Lamb-dip technique in order to increase the instrumental resolving power and so to analyze the hyperfine structure of the rotational transitions. The accuracy of the measurements have been evaluated to lie within ±1 kHz. Under these conditions, it has been possible to obtain very accurate values of the B₀ and D₀ spectroscopic constants and of the ¹⁷O nuclear electric quadrupole coupling and spin–rotation constants.