Large-Scale Mapping Observations of the C i (3P1–3P0) and CO (J = 3–2) Lines toward the Orion A Molecular Cloud

Material type: 文書・図像類

Author: IKEDA, Masafumiほか

Publisher: University of Chicago Press

Publication date: 1999-12

Material Format: Digital

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Note (General)：: Large-scale mapping observations of the 3P1–3P0 fine-structure transition of atomic carbon (C i, 492 GHz) and the transition of CO (346 GHz) toward th...

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Material Type: 文書・図像類
Title: Large-Scale Mapping Observations of the C i (3P1–3P0) and CO (J = 3–2) Lines toward the Orion A Molecular Cloud
Author/Editor: IKEDA, Masafumi
MAEZAWA, Hiroyuki
ITO, Tetsuya
SAITO, Gaku
SEKIMOTO, Yutaro
YAMAMOTO, Satoshi
TATEMATSU, Ken-ichi
ARIKAWA, Yuji
ASO, Yoshiyuki
NOGUCHI, Takashi
SHI, Sheng-Cai
MIYAZAWA, Keisuke
SAITO, Shuji
OZEKI, Hiroyuki
FUJIWARA, Hideo
OHISHI, Masatoshi
INATANI, Junji
Author Heading: IKEDA, Masafumi
MAEZAWA, Hiroyuki
ITO, Tetsuya
SAITO, Gaku
SEKIMOTO, Yutaro
YAMAMOTO, Satoshi
TATEMATSU, Ken-ichi
ARIKAWA, Yuji
ASO, Yoshiyuki
NOGUCHI, Takashi
SHI, Sheng-Cai
MIYAZAWA, Keisuke
SAITO, Shuji
OZEKI, Hiroyuki
FUJIWARA, Hideo
OHISHI, Masatoshi
INATANI, Junji
Publication, Distribution, etc.: University of Chicago Press
Publication Date: 1999-12
Publication Date (W3CDTF): 1999-12
Periodical title: Astrophysical Journal
No. or year of volume/issue: 527
Volume: 527
Pages: L59-L62
ISSN (Periodical Title): ISSN : 0004-637X
Text Language Code: eng
Subject Heading: ISM
atoms—ISM
individual (Orion A Cloud)—ISM
molecules
Target Audience: 一般
Note (General): Large-scale mapping observations of the 3P1–3P0 fine-structure transition of atomic carbon (C i, 492 GHz) and the transition of CO (346 GHz) toward the Orion A molecular cloud have been carried out with the Mount Fuji submillimeter-wave telescope. The observations cover 9 deg2 and include the Orion Nebula M42 and the L1641 dark cloud complex. The C i emission extends over almost the entire region of the Orion A cloud and is surprisingly similar to that of 13CO (). The CO () emission shows a more featureless and extended distribution than C i. The C i/CO () integrated intensity ratio shows a spatial gradient running from the north (0.10) to the south (1.2) of the Orion A cloud, which we interpret as a consequence of the temperature gradient. On the other hand, the C i/13CO () intensity ratio shows no systematic gradient. We have found a good correlation between the C i and 13CO () intensities over the Orion A cloud. This result is discussed on the basis of photodissociation region models.
Access Restrictions: 限定公開
Rights (production): 〓 1999 American Astronomical Society
Related Material (DOI): 10.1086/312395
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ