ALMA ACA and Nobeyama Observations of Two Orion Cores in Deuterated Molecular Lines
文献类型：期刊论文
| 作者 | Tatematsu,Ken’ichi20,22; Liu,Tie1,23,24; Kim,Gwanjeong20; Yi,Hee-Weon25; Lee,Jeong-Eun25; Hirano,Naomi2; Liu,Sheng-Yuan2; Ohashi,Satoshi3; Sanhueza,Patricio4,22; Francesco,James Di5,6 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 895期号:2 |
| 关键词 | Star forming regions Astrochemistry Interstellar medium Giant molecular clouds Molecular clouds Collapsing clouds |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ab8d3e |
| 英文摘要 | Abstract We mapped two molecular cloud cores in the Orion A cloud with the 7 m Array of the Atacama Compact Array (ACA) of the Atacama Large Millimeter/submillimeterArray (ALMA) and with the Nobeyama 45 m radio telescope. These cores have bright N2D+ emission in single-pointing observations with the Nobeyama 45 m radio telescope, have a relatively high deuterium fraction, and are thought to be close to the onset of star formation. One is a star-forming core, and the other is starless. These cores are located along filaments observed in N2H+ and show narrow line widths of 0.41 km s?1 and 0.45 km s?1 in N2D+, respectively, with the Nobeyama 45 m telescope. Both cores were detected with the ALMA ACA 7 m Array in the continuum and molecular lines at Band 6. The starless core G211 shows a clumpy structure with several sub-cores, which in turn show chemical differences. Also, the sub-cores in G211 have internal motions that are almost purely thermal. The starless sub-core G211D, in particular, shows a hint of the inverse P Cygni profile, suggesting infall motion. The star-forming core G210 shows an interesting spatial feature of two N2D+ peaks of similar intensity and radial velocity located symmetrically with respect to the single dust continuum peak. One interpretation is that the two N2D+ peaks represent an edge-on pseudo-disk. The CO outflow lobes, however, are not directed perpendicular to the line connecting both N2D+ peaks. |
| 语种 | 英语 |
| WOS记录号 | IOP:0004-637X-895-2-AB8D3E |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/63422]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.East Asian Observatory, 660 N. A’ohoku Place, Hilo, HI 96720, USA 2.Academia Sinica Institute of Astronomy and Astrophysics, 11F of Astronomy-Mathematics Building, AS/NTU. No.1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan, R.O.C. 3.The Institute of Physical and Chemical Research (RIKEN), 2-1, Hirosawa, Wako-shi, Saitama 351-0198, Japan 4.National Astronomical Observatory of Japan, National Institutes of Natural Sciences, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan 5.Herzberg Astronomy & Astrophysics, National Research Council of Canada, 5071 West Saanich Road, Victoria, BC V9E 2E7, Canada 6.Department of Physics and Astronomy, University of Victoria, Victoria, BC V8W 2Y2, Canada 7.Department of Astronomy, The University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712?1205, USA 8.Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester, M13 9PL, UK 9.The Kavli Institute for Astronomy and Astrophysics, Peking University, 5 Yiheyuan Road, Haidian District, Beijing 100871, People’s Republic of China 10.Graduate School of Informatics and Engineering, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan |
| 推荐引用方式 GB/T 7714 | Tatematsu,Ken’ichi,Liu,Tie,Kim,Gwanjeong,et al. ALMA ACA and Nobeyama Observations of Two Orion Cores in Deuterated Molecular Lines[J]. The Astrophysical Journal,2020,895(2). |
| APA | Tatematsu,Ken’ichi.,Liu,Tie.,Kim,Gwanjeong.,Yi,Hee-Weon.,Lee,Jeong-Eun.,...&Tóth,L. Viktor.(2020).ALMA ACA and Nobeyama Observations of Two Orion Cores in Deuterated Molecular Lines.The Astrophysical Journal,895(2). |
| MLA | Tatematsu,Ken’ichi,et al."ALMA ACA and Nobeyama Observations of Two Orion Cores in Deuterated Molecular Lines".The Astrophysical Journal 895.2(2020). |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。