SMA molecular line survey towards the massive star-forming region G10.6-0.4 in W31 complex
文献类型：期刊论文
| 作者 | Wong, Wai-Ho1,2; An, Tao1 |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2018-10-01 |
| 卷号 | 18期号:11页码:14 |
| ISSN号 | 1674-4527 |
| 关键词 | stars: formation ISM: abundances ISM: individual objects: G10.6-0.4 ISM: molecules radio lines: ISM |
| DOI | 10.1088/1674-4527/18/11/134 |
| 通讯作者 | Wong, Wai-Ho(huangweihao@shao.ac.cn) |
| 英文摘要 | Line surveys of complex molecules with millimeter and sub-millimeter telescopes are important for probing the physical and chemical environments of massive star forming regions (MSFRs). We present a molecular line survey with the Submillimeter Array (SMA) in the frequency ranges of 220.3-222.3 GHz and 230.3-232.3 GHz toward G10.6-0.4, the brightest star forming core in the W31 complex. Ninety-nine transitions from 22 molecular species and their isotopologues are identified. The moment 0 images of typical molecules show a compact core which is concentrated at the continuum peak position. Based on the local thermodynamic equilibrium assumption, the molecular line data are modeled. The rotational temperatures of those molecular species range from 96 to 178 K and their column densities range from 2.0 x 10(14) to 3.7 x 10(17) cm(-2). The observational data suggest that all complex molecules are located in a warm environment. Chemical environments of the molecules are discussed. We compared molecular abundances and gas temperatures in G10.6-0.4 with those in other MSFRs, and found that gas temperatures and fractional abundances of specific molecules in G10.6-0.4 are similar to the typical MSFR W51 North, suggesting that there are similar physical and chemical environments in these two MSFRs. |
| WOS关键词 | H-II REGIONS ; ULTRACOMPACT HII-REGIONS ; GRAIN-SURFACE-CHEMISTRY ; TEMPERATURE PROBE ; ACCRETION FLOW ; CLOUD CORES ; HOT CORES ; OH MASERS ; ABUNDANCES ; SUBMILLIMETER |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| WOS记录号 | WOS:000448829000004 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/20995]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Wong, Wai-Ho |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Radio Astron, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wong, Wai-Ho,An, Tao. SMA molecular line survey towards the massive star-forming region G10.6-0.4 in W31 complex[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2018,18(11):14. |
| APA | Wong, Wai-Ho,&An, Tao.(2018).SMA molecular line survey towards the massive star-forming region G10.6-0.4 in W31 complex.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,18(11),14. |
| MLA | Wong, Wai-Ho,et al."SMA molecular line survey towards the massive star-forming region G10.6-0.4 in W31 complex".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 18.11(2018):14. |
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来源：紫金山天文台
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