KMS of Xinjiang Astronomical Observatory, CAS
| Spiral arm, rotating structure, and outflow cavity in massive star-forming region G23.43-0.18 | |
| Chibueze, James O.1,2; Ugwu, Chukwuebuka J.1,2; Hirota, Tomoya3,4; Kim, Kee-Tae5,6; Liu, Tie7; Vorster, Jakobus M.8,9; Kang, Ji-hyun5; Kim, Jungha5,10; Burns, Ross A.11; Sobolev, Andrey M.6,12; Hwang, Jihye5; Lee, Chang Won5,13; Kim, Mi Kyoung14; Sugiyama, Koichiro15,16 | |
| 2025-05-01 | |
| Source Publication | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| ISSN | 0035-8711 |
| Volume | 539Issue:1Pages:145-159 |
| Contribution Rank | 6 |
| Abstract | 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. |
| Keyword | masers techniques: interferometric stars: formation ISM : individual objects: G23.43-0.18A submillimetre : ISM |
| DOI | 10.1093/mnras/stae2773 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | GHZ METHANOL MASERS ; H II REGIONS ; GALACTIC PLANE ; PROTOSTELLAR OUTFLOWS ; RADIATIVE FEEDBACK ; BIPOLAR OUTFLOW ; CATALOG ; DISK ; DRIVEN ; DUST |
| Funding Project | 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 Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001464270200001 |
| Publisher | OXFORD UNIV PRESS |
| Funding Organization | 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 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7688 |
| Collection | 中国科学院新疆天文台 |
| Corresponding Author | Chibueze, James O. |
| Affiliation | 1.Univ South Africa, Dept Math Sci, Cnr Christian Wet Rd & Pioneer Ave,Florida Pk, ZA-1709 Roodepoort, South Africa 2.Univ Nigeria, Fac Phys Sci, Dept Phys & Astron, Carver Bldg,1 Univ Rd, Nsukka 410001, Nigeria 3.Natl Inst Nat Sci, Natl Astron Observ Japan, 2-12 Hoshigaoka, Oshu, Iwate 0230861, Japan 4.Grad Univ Adv Studies, SOKENDAI, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan 5.Korea Astron & Space Sci Inst, 776 Daedeokdaero, Daejeon 34055, South Korea 6.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 7.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 8.North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa 9.Univ Helsinki, Dept Phys, POB 64, FI-00014 Helsinki, Finland 10.Chungnam Natl Univ, Dept Astron & Space Sci, Daejeon 34134, South Korea 11.RIKEN, Cluster Pioneering Res, Wako, Saitama, Japan 12.Ural Fed Univ, Inst Nat Sci & Math, Astron Observ, 19 Mira St, Ekaterinburg 620002, Russia 13.Univ Sci & Technol, Korea UST, 217 Gajeong Ro, Daejeon 34113, South Korea 14.Otsuma Womens Univ, Fac Home Econ, Dept Child Studies, 12 Sanban Cho,Chiyoda Ku, Tokyo 1028357, Japan 15.Natl Astron Res Inst Thailand Publ Org, 260 Moo 4, Chiang Mai 50180, Thailand 16.Natl Astron Observ Japan, Mizusawa VLBI Observ, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan |
| Recommended Citation 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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| Chibueze-2025-Spiral（2856KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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