Key points are not available for this paper at this time.
We have observed line emission from the 146969.16-MHz j = 3 to j = 2 transition in CS in four sources. Typical column densities are near 1014 molecules cm . The excitation rates required to produce the observed line intensities are used to derive densities for the central regions of the sources.
Penzias et al. (Wed,) studied this question.