Millimeter and submillimeter wave spectrum of CS 1Σ in high vibrational states: Isotopic dependence of Dunham coefficients

Rotational lines of CS were observed in an rf discharge in CS ₂. Transitions belonging to different isotopic species were measured in excited vibrational states (up to v = 20) for different J values. These measurements led to a precise determination of some Dunham coefficients and of the ∆ ₀₁ mass scaling coefficients.