TY - JOUR
T1 - The 3 mm spectral line survey toward the lynds 1157B1 shocked region. I. Data
AU - Yamaguchi, Takahiro
AU - Takano, Shuro
AU - Watanabe, Yoshimasa
AU - Sakai, Nami
AU - Sakai, Takeshi
AU - Liu, Sheng Yuan
AU - Su, Yu Nung
AU - Hirano, Naomi
AU - Takakuwa, Shigehisa
AU - Aikawa, Yuri
AU - Nomura, Hideko
AU - Yamamoto, Satoshi
N1 - Funding Information:
We are grateful to the members of the line survey project which is conducted as a legacy project of the Nobeyama 45 m telescope. We thank the staff of NRO for their support and development of the new wide-band observation system. In particular, we thank Ryohei Kawabe, the director of NRO, for his continuous encouragement and support to this project. We also thank Cecilia Ceccarelli, Claudine Kahane, and Alexander Tielens for valuable discussions. This study is supported in part by Grants-in-Aid from the Ministry of Education, Culture, Sports, Science and Technology (Nos. 21224002 and 21740132).
PY - 2012/10/25
Y1 - 2012/10/25
N2 - We have conducted a spectral line survey of the 3 mm band with the 45 m telescope of Nobeyama Radio Observatory toward the L 1157 B1 shocked region, where the blue-shifted component of the bipolar outflow from the protostar IRAS 20386+6751 interacts with the ambient gas. The observed frequency ranges from 78.1 to 115.8 GHz. We have detected 129 spectral lines of 29 molecular species. In addition to various oxygen-bearing organic molecules such as CH 3CHO, HCOOCH3, and HCOOH, we have detected a phosphorus-containing molecule PN, a nitrogen-bearing organic molecule NH 2CHO, and a carbon-chain molecule CCS in the shocked region. These results clearly indicate that the L 1157 B1 shocked region is chemically rich, which is probably triggered by evaporation of grain mantles.
AB - We have conducted a spectral line survey of the 3 mm band with the 45 m telescope of Nobeyama Radio Observatory toward the L 1157 B1 shocked region, where the blue-shifted component of the bipolar outflow from the protostar IRAS 20386+6751 interacts with the ambient gas. The observed frequency ranges from 78.1 to 115.8 GHz. We have detected 129 spectral lines of 29 molecular species. In addition to various oxygen-bearing organic molecules such as CH 3CHO, HCOOCH3, and HCOOH, we have detected a phosphorus-containing molecule PN, a nitrogen-bearing organic molecule NH 2CHO, and a carbon-chain molecule CCS in the shocked region. These results clearly indicate that the L 1157 B1 shocked region is chemically rich, which is probably triggered by evaporation of grain mantles.
KW - ISM: individual (lynds 1157)
KW - ISM: molecules
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U2 - 10.1093/pasj/64.5.105
DO - 10.1093/pasj/64.5.105
M3 - Review article
AN - SCOPUS:84868015184
SN - 0004-6264
VL - 64
JO - Publication of the Astronomical Society of Japan
JF - Publication of the Astronomical Society of Japan
IS - 5
ER -