Abstract
High signal-to-noise J = 2 ..-->.. 1 millimeter-wave spectra of /sup 12/C/sup 32/S were obtained toward nine active star-forming regions in an attempt to determine whether or not high-velocity flows were also characterized by high (nH/sub 2/> or approx. =10/sup 3/ cm/sup -3/) densities. Three of the objects (Ori A, S140, and Cep A) showed definite broad wings. One other (AFGL 490) may have such wings. However, on the basis of the results presented here, it appears that easily detectable, high-velocity CS emission is not widespread. In sources where CS high-velocity wings were detected, there is marginal evidence which suggests that either the CS abundance or excitation conditions are anomalous compared with quiescent clouds.
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