Torsionally excited methyl formate in Orion KL

Kaori Kobayashi; Kazumi Ogata; Shozo Tsunekawa; Shuro Takano

doi:10.1086/512977

Torsionally excited methyl formate in Orion KL

Kaori Kobayashi^*, Kazumi Ogata, Shozo Tsunekawa, Shuro Takano

^*この論文の責任著者

物理学科

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

45 被引用数 (Scopus)

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We report the first detection of rotational transitions of methyl formate (HCOOCH₃) in the first torsionally excited state (v_t = 1). Recent progress on the assignment of laboratory spectra of methyl formate made it possible for us to assign about 20 unidentified lines in Orion KL from previous line surveys below 200 GHz to the first torsionally excited methyl formate. The rotational temperature and column density obtained in the first torsionally excited state were 44 ± 10 K and (8.6 ± 3.2) × 10¹⁴ cm^-2, respectively. They were compared with those in the ground state.

本文言語	英語
ページ（範囲）	L17-L19
ジャーナル	Astrophysical Journal
巻	657
号	1 II
DOI	https://doi.org/10.1086/512977
出版ステータス	出版済み - 2007/03/01

ASJC Scopus 主題領域

天文学と天体物理学
宇宙惑星科学

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10.1086/512977

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title = "Torsionally excited methyl formate in Orion KL",

abstract = "We report the first detection of rotational transitions of methyl formate (HCOOCH3) in the first torsionally excited state (vt = 1). Recent progress on the assignment of laboratory spectra of methyl formate made it possible for us to assign about 20 unidentified lines in Orion KL from previous line surveys below 200 GHz to the first torsionally excited methyl formate. The rotational temperature and column density obtained in the first torsionally excited state were 44 ± 10 K and (8.6 ± 3.2) × 1014 cm-2, respectively. They were compared with those in the ground state.",

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author = "Kaori Kobayashi and Kazumi Ogata and Shozo Tsunekawa and Shuro Takano",

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doi = "10.1086/512977",

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T1 - Torsionally excited methyl formate in Orion KL

AU - Kobayashi, Kaori

AU - Ogata, Kazumi

AU - Tsunekawa, Shozo

AU - Takano, Shuro

PY - 2007/3/1

Y1 - 2007/3/1

N2 - We report the first detection of rotational transitions of methyl formate (HCOOCH3) in the first torsionally excited state (vt = 1). Recent progress on the assignment of laboratory spectra of methyl formate made it possible for us to assign about 20 unidentified lines in Orion KL from previous line surveys below 200 GHz to the first torsionally excited methyl formate. The rotational temperature and column density obtained in the first torsionally excited state were 44 ± 10 K and (8.6 ± 3.2) × 1014 cm-2, respectively. They were compared with those in the ground state.

AB - We report the first detection of rotational transitions of methyl formate (HCOOCH3) in the first torsionally excited state (vt = 1). Recent progress on the assignment of laboratory spectra of methyl formate made it possible for us to assign about 20 unidentified lines in Orion KL from previous line surveys below 200 GHz to the first torsionally excited methyl formate. The rotational temperature and column density obtained in the first torsionally excited state were 44 ± 10 K and (8.6 ± 3.2) × 1014 cm-2, respectively. They were compared with those in the ground state.

KW - ISM: individual (orion kleinmann-low)

KW - ISM: molecules

KW - Line: identification

KW - Radio lines: ISM

UR - http://www.scopus.com/inward/record.url?scp=33947540928&partnerID=8YFLogxK

U2 - 10.1086/512977

DO - 10.1086/512977

M3 - 学術論文

AN - SCOPUS:33947540928

SN - 0004-637X

VL - 657

SP - L17-L19

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 II

ER -

Torsionally excited methyl formate in Orion KL

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