supported by the National Natural Science Foundation of China (Grant Nos. 11003046, 11073054, 10733030 and 10621303);the National Basic Research Program of China (973 Program, Grant 2007CB815403)
For the first time, the OMC-2/3 region was mapped in C2H (1–0), HC3N (10–9) and HNC (1–0) lines. In general, the emissions from all the three molecular species reveal an extended filamentary structure. The di...