Chemically Fresh Gas Inflows Detected in a Nearby High-mass Star-forming Region

doi:10.3847/2041-8213/ac3ec8

CORC > 新疆天文台 > 研究单元未命名 > 射电天文研究室 > 恒星形成与演化研究团组

	Chemically Fresh Gas Inflows Detected in a Nearby High-mass Star-forming Region
	Chen, Xi 1,2; Ren, Zhi-Yuan 3; Li, Da-Lei 4; Liu, Tie 2; Wang, Ke 5; Shen, Zhi-Qiang 2; Ellingsen, Simon P.6; Sobolev, Andrej M.7; Mei, Ying 1; Li, Jing-Jing 8
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2021-12-01
卷号	923 期号:1 页码:11
ISSN号	2041-8205
DOI	10.3847/2041-8213/ac3ec8
通讯作者	Chen, Xi(chenxi@gzhu.edu.cn) ; Ren, Zhi-Yuan(renzy@nao.cas.cn)
英文摘要	We report the detection of a chemically fresh inflow that is feeding high-mass young-stellar-object (HMYSO) growth in the nearby high-mass star-forming region G352.63 made with both the Atacama Large Millimeter/submillimeter Array (ALMA) and the Submillimeter Array (SMA). High-quality images of the dust and molecular lines from both ALMA and SMA have consistently revealed a gravitationally controlled cold (similar to 10 K) gas inflow of chemically fresh molecules (e.g., CCH and HC3N) toward the central HMYSO and its surrounding dense gas structure, which has a possible torus- or disk-like morphology. The HMYSO is also observed to have an outflow, which is nearly perpendicular to the torus and its parental filament, and thus can be clearly separated from the inflows. These kinematic features provide observational evidence to support the conjecture that the infalling streamers in high-mass star-forming regions could proceed in a similar process to that observed in low-mass counterparts. The chemically fresh infalling streamers could also be involved in the disk or torus configuration, fragmentation, and accretion bursts that occur in both simulations and observations.
资助项目	National Natural Science Foundation of China[11873002] ; National Natural Science Foundation of China[12011530065] ; National Natural Science Foundation of China[11590781] ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; ARC Discovery Project[DP180101061] ; Ministry of Education and Science of the Russian Federation[FEUZ-2020-0030]
WOS关键词	MOLECULAR CLOUDS ; DARK CLOUDS ; DENSE CORES ; ACCRETION ; PROTOSTARS ; TURBULENT ; FILAMENTS ; DISC
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000730635800001
资助机构	National Natural Science Foundation of China ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; ARC Discovery Project ; Ministry of Education and Science of the Russian Federation
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/4404]
专题	恒星形成与演化研究团组
通讯作者	Chen, Xi; Ren, Zhi-Yuan
作者单位	1.Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Datun Rd A20, Beijing, Peoples R China 4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 5.Peking Univ, Kavli Inst Astron & Astrophys, 5 Yiheyuan Rd, Beijing 100871, Peoples R China 6.Univ Tasmania, Sch Nat Sci, Private Bag 37, Hobart, Tas 7001, Australia 7.Ural Fed Univ, 19 Mira St, Ekaterinburg 620002, Russia 8.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 9.Korea Astron & Space Sci Inst, 776 Daedeokdae Ro, Daejeon 34055, South Korea 10.Univ Sci & Technol Korea UST, 217 Gajeong Ro, Daejeon 34113, South Korea
推荐引用方式 GB/T 7714	Chen, Xi,Ren, Zhi-Yuan,Li, Da-Lei,et al. Chemically Fresh Gas Inflows Detected in a Nearby High-mass Star-forming Region[J]. ASTROPHYSICAL JOURNAL LETTERS,2021,923(1):11.
APA	Chen, Xi.,Ren, Zhi-Yuan.,Li, Da-Lei.,Liu, Tie.,Wang, Ke.,...&Kim, Kee-Tae.(2021).Chemically Fresh Gas Inflows Detected in a Nearby High-mass Star-forming Region.ASTROPHYSICAL JOURNAL LETTERS,923(1),11.
MLA	Chen, Xi,et al."Chemically Fresh Gas Inflows Detected in a Nearby High-mass Star-forming Region".ASTROPHYSICAL JOURNAL LETTERS 923.1(2021):11.