@article{75c61a9339224cb5899fa9fed3f8c1cb,
title = "An unbiased spectral line survey observation toward the low-mass star-forming region L1527",
abstract = "An unbiased spectral line survey toward a solar-type Class 0/I protostar, IRAS 04368+2557, in L1527 has been carried out in the 3 mm band with the Nobeyama 45 m telescope. L1527 is known as a warm carbon-chain chemistry (WCCC) source, which harbors abundant unsaturated organic species such as CnH (n = 3, 4, 5, ...) in a warm and dense region near the protostar. The observation covers the frequency range from 80 to 116 GHz. A supplementary observation has also been conducted in the 70 GHz band to observe fundamental transitions of deuterated species. In total, 69 molecular species are identified, among which 27 species are carbon-chain species and their isomers, including their minor isotopologues. This spectral line survey provides us with a good template of the chemical composition of the WCCC source.",
keywords = "ISM: individual objects (LDN 1527), ISM: molecules, astrochemistry",
author = "Kento Yoshida and Nami Sakai and Yuri Nishimura and Tomoya Tokudome and Yoshimasa Watanabe and Takeshi Sakai and Shuro Takano and Satoshi Yamamoto",
note = "Funding Information: The authors thank Cecilia Ceccarelli and Bertrand Lefloch for valuable discussions, particularly for communication of the ASAI data prior to publication, and Sheng-Yuan Liu for valuable comments. The authors are grateful to the Nobeyama Radio Observatory (NRO) staff for great support in the observations with the 45 m telescope. The Nobeyama Radio Observatory is a branch of the National Astronomical Observatory of Japan, National Institutes of Natural Sciences. K. Y. acknowledges the RIKEN Junior Research Associate Program and the Japan Society for the Promotion of Science (JSPS) fellowship. This study is supported by Grant-in-Aids from the Ministry of Education, Culture, Sports, Science, and Technology of Japan (Nos. 21740132, 23740142, 25400223, 16H03964, and 25108005). N. S. and S. Y. acknowledge financial support by JSPS and Ministry of Foreign Affairs and International Development (MAEDI) under the Japan-France integrated action program. Publisher Copyright: {\textcopyright} 2019 The Author(s) 2019. Published by Oxford University Press on behalf of the Astronomical Society of Japan.",
year = "2019",
month = dec,
day = "1",
doi = "10.1093/pasj/psy136",
language = "English",
volume = "71",
journal = "Publications of the Astronomical Society of Japan",
issn = "0004-6264",
publisher = "Astronomical Society of Japan",
}