supported by the National Natural Science Foundation of China (NSFC) under grant Nos.11273011,U1231119,10973006,11003002,11273026,10933001 and 10973015;the National Basic Research Program of China (973 Program,Grant Nos.2007CB815404,2007CB815403 and 2007CB815406)
We aim at deriving accurate atmospheric parameters and chemical abundances of 19 barium(Ba) stars, including both strong and mild Ba stars, based on the high signal-to-noise ratio and high resolution Echelle spectra...
supported by the National Natural Science Foundation of China (Grant Nos. 10873016, 10633020, 10803007,11003021, 11173016 and 11073032);the National Basic Research Program of China (973 Program, 2007CB815403)
We present metal abundance properties of 144 globular clusters associated with M81. These globulars represent the largest globular cluster sample in M81 till now. Our main results are: the distribution of metalliciti...
supported by the National Natural Science Foundation of China(Grant Nos. 10873016 and 10633020);the National Basic Research Program of China (973 Program,No. 2007CB815403)
We present the first photometric results in J, H and Ks from 2MASS (Two Micron All Sky Survey) imaging of 10 classical globular clusters (GCs) in the far outer regions of M31. Combined with the V and I photometric...
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...
supported by National Natural Science Foundation of China (Grant Nos.11073054,10733030,10703010 and 10621303);the National Basic Research Program of China (2007CB815403);supported in part by the Key Laboratory for Radio Astronomy,CAS
We present results of 13CO(1-0),C18O(1-0),and HCO+(1-0) map observations and N2H+(1-0) single point observations directed towards a sample of nine low-luminosity 6.7-GHz masers.N2H + line emission has been ...
supported by the National Natural Science Foundation of China(Grant Nos.10873016,10633020,10603006 and 10803007);by National Basic Research Program of China(973 Program,No.2007CB815403)
The Chinese Small Telescope Array (CSTAR) is the first Chinese astronomical instrument on the Antarctic ice cap. The low temperature and low pressure testing of the data acquisition system was carried out in a labor...
supported by the National Natural Science Foundation of China(Grant Nos.10673024,10733030,10703010 and 10621303);the National Basic Research Program of China-973 Program(2007CB815403)
We present a multi-line study of the massive star-forming region IRAS 22506+5944. A new 6.7 GHz methanol maser was detected. ^12CO, 13CO, C180 and HCO+ J = 1 - 0 transition observations reveal a star-formation compl...