Spiral arm, rotating structure, and outflow cavity in massive star-forming region G23.43-0.18
文献类型：期刊论文
| 作者 | Chibueze, James O.4,15; Ugwu, Chukwuebuka J.4,15; Hirota, Tomoya13,14; Kim, Kee-Tae11,12; Liu, Tie10; Vorster, Jakobus M.9,16; Kang, Ji-hyun12; Kim, Jungha3,12; Burns, Ross A.2; Sobolev, Andrey M.1,11 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2025-05-01 |
| 卷号 | 539期号:1页码:145-159 |
| 关键词 | masers techniques: interferometric stars: formation ISM : individual objects: G23.43-0.18A submillimetre : ISM |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/stae2773 |
| 产权排序 | 6 |
| 英文摘要 | We confirmed the existence of a massive protocluster in G23.43-0.18 from our Atacama Large Millimeter/submillimeter Array (ALMA) 1.3 mm continuum and molecular line observations. We resolved the region into one main massive protostellar object, G23.43-0.18 A, one intermediate mass protostellar object, G23.43-0.18 B, and three low mass objects, G23.43-0.18 C1, G23.43-0.18 C2, and G23.43-0.18 C3. A spiral arm structure is observed in G23.43-0.18 B. G23.43-0.18 A 1.3 mm dust continuum emission showed a 'butterfly' morphology with clear evidence of the existence of a cavity and bipolar outflow with an inclination angle of 50$<^>\circ$. G23.43-0.18 B presents a compact rotating structure, and possibly an inner Keplerian disc, traced with methanol lines and powers a jet revealed by multiple compact emission peaks in CO, indicating episodic ejections every 300 yr. The presence of 6.7 GHz methanol masers in G23.43-0.18 A and G23.43-0.18 B are strong indications that both objects host massive protostars and are good sites to test some theories of the early evolutionary phases of massive stars. |
| WOS关键词 | GHZ METHANOL MASERS ; H II REGIONS ; GALACTIC PLANE ; PROTOSTELLAR OUTFLOWS ; RADIATIVE FEEDBACK ; BIPOLAR OUTFLOW ; CATALOG ; DISK ; DRIVEN ; DUST |
| 资助项目 | MAECI[ZA18GR02] ; Italian Ministry of Foreign Affairs and International Cooperation (MAECI)[113121] ; South African Department of Science and Technology's National Research Foundation (DST-NRF)[409000] ; University of South Africa[FEUZ-2023-0019] ; Russian Ministry of Science and Higher Education[NRF- 2019R1A2C1010851] ; Basic Science Research Program through the NRF - Ministry of Education, Science and Technology[2024-1-841-00] ; Korea Astronomy and Space Science Institute - Korea government (MSIT)[134192] ; National Research Foundation of South Africa[348342] ; Research Council of Finland[17K05398] ; Research Council of Finland[18H05222] ; Research Council of Finland[20H05845] ; MEXT/JSPS KAKENHI ; National Astronomical Observatory of Japan |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001464270200001 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | MAECI ; Italian Ministry of Foreign Affairs and International Cooperation (MAECI) ; South African Department of Science and Technology's National Research Foundation (DST-NRF) ; University of South Africa ; Russian Ministry of Science and Higher Education ; Basic Science Research Program through the NRF - Ministry of Education, Science and Technology ; Korea Astronomy and Space Science Institute - Korea government (MSIT) ; National Research Foundation of South Africa ; Research Council of Finland ; MEXT/JSPS KAKENHI ; National Astronomical Observatory of Japan |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7687]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Chibueze, James O. |
| 作者单位 | 1.Ural Fed Univ, Inst Nat Sci & Math, Astron Observ, 19 Mira St, Ekaterinburg 620002, Russia 2.RIKEN, Cluster Pioneering Res, Wako, Saitama, Japan 3.Chungnam Natl Univ, Dept Astron & Space Sci, Daejeon 34134, South Korea 4.Univ South Africa, Dept Math Sci, Cnr Christian Wet Rd & Pioneer Ave,Florida Pk, ZA-1709 Roodepoort, South Africa 5.Natl Astron Observ Japan, Mizusawa VLBI Observ, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan 6.Natl Astron Res Inst Thailand Publ Org, 260 Moo 4, Chiang Mai 50180, Thailand 7.Otsuma Womens Univ, Fac Home Econ, Dept Child Studies, 12 Sanban Cho,Chiyoda Ku, Tokyo 1028357, Japan 8.Univ Sci & Technol, Korea UST, 217 Gajeong Ro, Daejeon 34113, South Korea 9.North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa 10.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chibueze, James O.,Ugwu, Chukwuebuka J.,Hirota, Tomoya,et al. Spiral arm, rotating structure, and outflow cavity in massive star-forming region G23.43-0.18[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2025,539(1):145-159. |
| APA | Chibueze, James O..,Ugwu, Chukwuebuka J..,Hirota, Tomoya.,Kim, Kee-Tae.,Liu, Tie.,...&Sugiyama, Koichiro.(2025).Spiral arm, rotating structure, and outflow cavity in massive star-forming region G23.43-0.18.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,539(1),145-159. |
| MLA | Chibueze, James O.,et al."Spiral arm, rotating structure, and outflow cavity in massive star-forming region G23.43-0.18".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 539.1(2025):145-159. |
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