The 3 mm spectral line survey toward the lynds 1157B1 shocked region. I. Data

Takahiro Yamaguchi, Shuro Takano, Yoshimasa Watanabe, Nami Sakai, Takeshi Sakai, Sheng Yuan Liu, Yu Nung Su, Naomi Hirano, Shigehisa Takakuwa, Yuri Aikawa, Hideko Nomura, Satoshi Yamamoto

研究成果: Review article査読

23 被引用数 (Scopus)


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, HCOOCH 3, 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.

ジャーナルPublications of the Astronomical Society of Japan
出版ステータスPublished - 2012 10 25

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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