MAPPING OBSERVATIONS OF SULFUR-CONTAINING CARBON-CHAIN MOLECULES IN TAURUS MOLECULAR CLOUD-1 (TMC-1)

High-resolution mapping observations were carried out toward Taurus -Molecular Cloud 1 (TMC-1) with sulfur-containing carbon-chain molecules, CCS and C3S, and other molecules, CS, (CS)-S-34, HCS+, HC3N, HC5N, C4H, and NH3, to investigate detailed molecular distribution and physical structure of the cold dark cloud. From the CCS and NH3 observations, thc TMC-1 ridge is found to consist of at least six cores. The peak positions of the (CS)-S-34, CCS, and C3S column densities are displaced to the southeast direction from the so-called cyanopolyyne peak by approximately 2' (approximately 0.08 pc). The distributions of (CS)-S-34, CCS, and C3S column densities are found to be well correlated with those of the other carbon-chain molecules, and are anticorrelated with that of NH3. The H-2 number densities along the TMC-1 ridge are estimated to be (approximately 4-40) x 10(4) cm-3 from the observed two transitions of (CS)-S-34 by adopting the LVG model. The northwest part of TMC-1 has somewhat higher density than the southeast part. We explain the difference in molecular distribution mainly by the difference in chemical evolutionary stage; the carbon-chain molecules are produced in early stages, while the ammonia is produced in late stages.