A misaligned protostellar disk fed by gas streamers in a barred spiral-like massive dense core
文献类型：期刊论文
| 作者 | Mai, Xiaofeng2,3,4; Liu, Tie2,5; Liu, Xunchuan2,6; Zhang, Bo2,5; Goldsmith, Paul F.7; Evans, Neal J.8; Zhang, Qizhou9; Kim, Kee-Tae10,11; Yang, Dongting12; Juvela, Mika4 |
| 刊名 | SCIENCE ADVANCES
 |
| 出版日期 | 2025-09-17 |
| 卷号 | 11期号:38页码:eady6953 |
| ISSN号 | 2375-2548 |
| DOI | 10.1126/sciadv.ady6953 |
| 产权排序 | 35 |
| 英文摘要 | High-mass stars, born in massive dense cores (MDCs), profoundly affect the cosmic ecosystem through feedback processes and metal enrichment, yet little is known about how MDCs assemble and transfer mass across scales to form high-mass young stellar objects (HMYSOs). Using multiscale [40 to 2500 astronomical units (au)] observations of an MDC hosting an HMYSO, we identify a coherent dynamical structure analogous to barred spiral galaxies: three similar to 20,000 au spiral arms feed a similar to 7500 au central bar, which channels gas to a similar to 2000 au pseudodisk. Further accretion proceeds through the inner structures, including a Keplerian disk and an inner disk (similar to 100 au), which are thought to be driving a collimated bipolar outflow. These multiscale structures (spiral arms, bar, streamers, envelope, disk, and outflow) have been simultaneously observed as a physically coherent structure within an MDC. Our discovery suggests that well-organized hierarchical structures play a crucial role during the gas accretion and angular momentum buildup of a massive disk. |
| WOS关键词 | MOLECULAR CLOUDS ; STAR-FORMATION ; METHANOL MASERS ; IRAS SOURCES ; OUTFLOW ; ACCRETION ; EMISSION ; DYNAMICS ; OBJECT ; SYSTEM |
| 资助项目 | National Key R&D Program of China[2022YFA1603100] ; National Natural Science Foundation of China (NSFC)[12073061] ; National Natural Science Foundation of China (NSFC)[12122307] ; Tianchi Talent Program of Xinjiang Uygur Autonomous Region ; Natural Science Foundation of China (NSFC)[U1831136] ; Natural Science Foundation of China (NSFC)[U2031212] ; Shanghai Astronomical Observatory[N-2020-06-09005] ; China Scholarships Council[202304910546] ; ANID BASAL[FB210003] ; Bose National Centre for Basic Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0800100] ; Grant-in-Aid for Scientific Research[JP23H01221] ; Finnish Academy of Science and Letters ; Research Council of Finland[348342] ; National Research Foundation of Korea (NRF) - Korea government (MSIT)[2021R1A2C1011718] ; National Research Foundation of Korea (NRF) - Korea government (MSIT)[RS-2024-00416859] ; NASA[80NM0018D0004] ; Chinese Academy of Sciences South America Center for Astronomy (CASSACA) Key Research Project[E52H540201] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001574165300024 |
| 出版者 | AMER ASSOC ADVANCEMENT SCIENCE |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; Tianchi Talent Program of Xinjiang Uygur Autonomous Region ; Natural Science Foundation of China (NSFC) ; Shanghai Astronomical Observatory ; China Scholarships Council ; ANID BASAL ; Bose National Centre for Basic Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Grant-in-Aid for Scientific Research ; Finnish Academy of Science and Letters ; Research Council of Finland ; National Research Foundation of Korea (NRF) - Korea government (MSIT) ; NASA ; Chinese Academy of Sciences South America Center for Astronomy (CASSACA) Key Research Project |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/8163]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Mai, Xiaofeng; Liu, Tie |
| 作者单位 | 1.Natl Inst Nat Sci, Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan 2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 4.Univ Helsinki, Dept Phys, POB 64, Helsinki 00014, Finland 5.State Key Lab Radio Astron & Technol, A20 Datun Rd, Beijing 100101, Peoples R China 6.Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands 7.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA 8.Univ Texas Austin, Dept Astron, 2515 Speedway, Austin, TX 78712 USA 9.Harvard & Smithsonian, Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA 10.Korea Astron & Space Sci Inst KASI, 776 Daedeokdae Ro, Daejeon 34055, South Korea |
| 推荐引用方式 GB/T 7714 | Mai, Xiaofeng,Liu, Tie,Liu, Xunchuan,et al. A misaligned protostellar disk fed by gas streamers in a barred spiral-like massive dense core[J]. SCIENCE ADVANCES,2025,11(38):eady6953. |
| APA | Mai, Xiaofeng.,Liu, Tie.,Liu, Xunchuan.,Zhang, Bo.,Goldsmith, Paul F..,...&Shen, Zhiqiang.(2025).A misaligned protostellar disk fed by gas streamers in a barred spiral-like massive dense core.SCIENCE ADVANCES,11(38),eady6953. |
| MLA | Mai, Xiaofeng,et al."A misaligned protostellar disk fed by gas streamers in a barred spiral-like massive dense core".SCIENCE ADVANCES 11.38(2025):eady6953. |
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