Atomic carbon and CO isotope emission in the vicinity of DR 15
文献类型：期刊论文
| 作者 | Oka, T; Yamamoto, S; Iwata, M; Maezawa, H; Ikeda, M; Ito, T; Kamegai, K; Sakai, T; Sekimoto, Y; Tatematsu, K |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2001-09-01 |
| 卷号 | 558期号:1页码:176-184 |
| 关键词 | HII regions ISM : atoms ISM : molecules radio lines : ISM |
| ISSN号 | 0004-637X |
| 英文摘要 | We present observations of the P-3(1)-P-3(o) fine-structure transition of atomic carbon [C I], the J = 3-2 transition of CO, and the J = 1-0 transitions of (CO)-C-13 and (CO)-O-18 toward DR 15, an H II region associated with two mid-infrared dark clouds (IRDCs). The (CO)-C-13 and (CO)-O-18 J = 1-0 emissions closely follow the dark patches seen in optical wavelength, showing two self-gravitating molecular cores with masses of 2000 and 900 M-circle dot, respectively, at the positions of the cataloged IRDCs. Our data show a rough spatial correlation between [C I] and (CO)-C-13 J = 1-0. Bright [C I] emission occurs in the relatively cold gas behind the molecular cores but does not occur in either highly excited gas traced by CO J = 3-2 emission or in the H II region/molecular cloud interface. These results are inconsistent with those predicted by standard photodissociation region models, suggesting an origin for interstellar atomic carbon unrelated to photodissociation processes. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SCALE MAPPING OBSERVATIONS ; INTERSTELLAR CLOUDS ; MOLECULAR CLOUDS ; DARK CLOUD ; PHOTODISSOCIATION REGIONS ; I EMISSION ; CHEMISTRY ; ORION ; P-3(1)-P-3(0) ; BISTABILITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000170794300017 |
| 公开日期 | 2013-01-31 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/8176]  |
| 专题 | 紫金山天文台_毫米波和亚毫米波技术实验室 |
| 作者单位 | 1.Univ Tokyo, Res Ctr Early Universe, Bunkyo Ku, Tokyo 1130033, Japan 2.Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan 3.Natl Astron Observ, Nobeyama Radio Observ, Minamisa Ku, Nagano 3841305, Japan 4.Grad Univ Adv Studies, Nobeyama Radio Observ, Dept Astron Sci, Minamisa Ku, Nagano 3841305, Japan 5.Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 6.Inst Mol Sci, Okazaki, Aichi 4448585, Japan 7.Fukui Univ, Fukui 9108507, Japan 8.Natl Space Agcy Japan, Tsukuba, Ibaraki 3058505, Japan 9.Univ Tokyo, Dept Chem Syst Engn, Tokyo 1130033, Japan 10.Natl Astron Observ, Mitaka, Tokyo 1818588, Japan |
| 推荐引用方式 GB/T 7714 | Oka, T,Yamamoto, S,Iwata, M,et al. Atomic carbon and CO isotope emission in the vicinity of DR 15[J]. ASTROPHYSICAL JOURNAL,2001,558(1):176-184. |
| APA | Oka, T.,Yamamoto, S.,Iwata, M.,Maezawa, H.,Ikeda, M.,...&Inatani, J.(2001).Atomic carbon and CO isotope emission in the vicinity of DR 15.ASTROPHYSICAL JOURNAL,558(1),176-184. |
| MLA | Oka, T,et al."Atomic carbon and CO isotope emission in the vicinity of DR 15".ASTROPHYSICAL JOURNAL 558.1(2001):176-184. |
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来源：紫金山天文台
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