Report from IRAM 30-m observations.
After the announced detection of CS2 by the HST team, we have searched CS in impact sites K, L, Q1 and T on July 21, UT 16-22. The CS(5-4) 244 GHz line was detected on site Q1, with an integrated intensity of 3.2 +/- 0.12 K km/s and a width (FWHM) of about 4.7 km/s. The CO 230 GHz was also readily detected on this site, with similar characteristics as the CS line (i.e. several times more intense than in previously observed sites E,G,H,K). Data reduction for other sites is in progress.
We also report unsuccesful searches on site K (on July 20) for CH3OH and HC3N near 218 GHz.
E. Lellouch, R. Moreno, G. Paubert, M. Festou