The ALMA-QUARKS Survey: Fibers' Role in Star Formation Unveiled in an Intermediate-mass Protocluster Region of the Vela D Cloud

doi:10.3847/1538-4357/ad8919

	The ALMA-QUARKS Survey: Fibers' Role in Star Formation Unveiled in an Intermediate-mass Protocluster Region of the Vela D Cloud
	Yang, Dongting 1; Liu, Hong-Li 1; Liu, Tie 2; Tej, Anandmayee 3; Liu, Xunchuan 2; He, Jinhua 4; Garay, Guido 5; Stutz, Amelia 6,7; Zhu, Lei 8; Qin, Sheng-Li 1; Xu, Fengwei 9,10; Li, Pak-Shing 2; Juvela, Mika 11; Garcia, Pablo 8,12; Goldsmith, Paul F.13; Zhang, Siju 14; Tang, Xindi15 ; Sanhueza, Patricio 16,17; Li, Shanghuo 7; Lee, Chang Won 18,19; Ranjan Das, Swagat 5; Jiao, Wenyu 2; Mai, Xiaofeng 2,20; Gorai, Prasanta 21; Zhang, Yichen 22; Ren, Zhiyuan 23,24,25; Toth, L. Viktor 26; Hwang, Jihye 18; Bronfman, Leonardo 5; Tatematsu, Ken'ichi 17; Dewangan, Lokesh 27; Chibueze, James O.28,29; Zhang, Suinan 2; Wu, Gang15 ; Xie, Jinjin 2
	2024-12-01
Source Publication	ASTROPHYSICAL JOURNAL
ISSN	0004-637X
Volume	976 Issue:2 Pages:241
Contribution Rank	16
Abstract	In this paper, we present a detailed analysis of the IRS 17 filament within the intermediate-mass protocluster IRAS 08448-4343 (of similar to 10(3)L(circle dot)), using ALMA data from the ATOMS 3 mm and QUARKS 1.3 mm surveys. The IRS 17 filament, which spans similar to 54,000 au (0.26 pc) in length and similar to 4000 au (0.02 pc) in width, exhibits a complex, multicomponent velocity field and harbors hierarchical substructures. These substructures include three bundles of seven velocity-coherent fibers and 29 dense (n similar to 10(8) cm(-3)) condensations. The fibers have a median length of similar to 4500 au and a median width of similar to 1400 au. Among these fibers, four are identified as "fertile," each hosting at least three dense condensations, which are regarded as the "seeds" of star formation. While the detected cores are randomly spaced within the IRS 17 filament based on the 3 mm dust continuum image, periodic spacing (similar to 1600 au) of condensations is observed in the fertile fibers according to the 1.3 mm dust map, consistent with the predictions of linear isothermal cylinder fragmentation models. These findings underscore the crucial role of fibers in star formation and suggest a hierarchical fragmentation process that extends from the filament to the fibers and, ultimately, to the smallest-scale condensations.
DOI	10.3847/1538-4357/ad8919
Indexed By	SCI
Language	英语
WOS Keyword	MAGNETIC-FIELD ORIENTATION ; MOLECULAR CLOUDS ; SOURCE CATALOG ; DENSE CORES ; 3-MILLIMETER OBSERVATIONS ; INITIAL CONDITIONS ; FORMING FILAMENTS ; PRESTELLAR CORE ; MAIN CLOUD ; FRAGMENTATION
Funding Project	National Key R&D Program of China[2022YFA1603101] ; Yunnan Fundamental Research Project[202301AT070118] ; Yunnan Fundamental Research Project[202401AS070121] ; NSFC[12033005] ; NSFC[JP22H01271] ; NSFC[JP23H01221] ; CPSF[2022M723278] ; JSPS[80NM0018D0004] ; Fondecyt Postdoctoral fellowship[3220162] ; Fondecyt Postdoctoral fellowship[FB210003] ; ALMA[2019.1.00685] ; ALMA[2021.1.00095] ; ALMA[2023.1.00425]
WOS Research Area	Astronomy & Astrophysics
WOS Subject	Astronomy & Astrophysics
WOS ID	WOS:001376824900001
Publisher	IOP Publishing Ltd
Funding Organization	National Key R&D Program of China ; Yunnan Fundamental Research Project ; NSFC ; CPSF ; JSPS ; Fondecyt Postdoctoral fellowship ; ALMA
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.xao.ac.cn/handle/45760611-7/7341
Collection	射电天文研究室_恒星形成与演化研究团组
Corresponding Author	Liu, Hong-Li; Liu, Tie; Tej, Anandmayee; Liu, Xunchuan
Affiliation	1.Yunnan Univ, Sch Phys & Astron, Kunming 650091, Yunnan, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 3.Indian Inst Space Sci & Technol, Thiruvananthapuram 695547, Kerala, India 4.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China 5.Univ Chile, Dept Astron, Casilla 36-D, Santiago, Chile 6.Univ Concepcion, Dept Astron, Ave Esteban Iturra S-N,160-C, Concepcion, Chile 7.Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany 8.Chinese Acad Sci, South Amer Ctr Astron, Natl Astron Observ, Beijing 100101, Peoples R China 9.Peking Univ, Kavli Inst Astron & Astrophys, 5 Yiheyuan Rd, Beijing 100871, Peoples R China 10.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 11.Univ Helsinki, Dept Phys, POB 64, FI-00014 Helsinki, Finland 12.Univ Catolica Norte, Inst Astron, Ave Angamos 0610, Antofagasta, Chile 13.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA 14.Univ Chile, Dept Astron, Santiago 7591245, Chile 15.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 Stree, Urumqi 830011, Xinjiang, Peoples R China 16.Tokyo Inst Technol, Dept Earth & Planetary Sci, Meguro, Tokyo, Japan 17.Natl Inst Nat Sci, Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan 18.Korea Astron & Space Sci Inst, 776 Daedeokdae Ro, Daejeon 34055, South Korea 19.Univ Sci & Technol Korea UST, 217 Gajeong Ro, Daejeon 34113, South Korea 20.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 21.Univ Oslo, Rosseland Ctr Solar Phys, POB 1029 Blindern, N-0315 Oslo, Norway 22.Shanghai Jiao Tong Univ, Dept Astron, 800 Dongchuan Rd, Shanghai 200240, Peoples R China 23.Chinese Acad Sci, Natl Astron Observ, Datun Rd A20, Beijing, Peoples R China 24.Chinese Acad Sci, CAS Key Lab FAST, NAOC, Beijing, Peoples R China 25.Univ Chinese Acad Sci, Beijing, Peoples R China 26.Eotvos Lorand Univ, Inst Phys & Astron, Pazmany Peter Setany 1-A, H-1117 Budapest, Hungary 27.Phys Res Lab, Ahmadabad 380009, Gujarat, India 28.Univ South Africa, Dept Math Sci, Cnr Christian de Wet Rd & Pioneer Ave,Florida Pk, ZA-1709 Roodepoort, South Africa 29.Univ Nigeria, Fac Phys Sci, Dept Phys & Astron, Carver Bldg,1 Univ Rd, Nsukka 410001, Nigeria
Recommended Citation GB/T 7714	Yang, Dongting,Liu, Hong-Li,Liu, Tie,et al. The ALMA-QUARKS Survey: Fibers' Role in Star Formation Unveiled in an Intermediate-mass Protocluster Region of the Vela D Cloud[J]. ASTROPHYSICAL JOURNAL,2024,976(2):241.
APA	Yang, Dongting.,Liu, Hong-Li.,Liu, Tie.,Tej, Anandmayee.,Liu, Xunchuan.,...&Xie, Jinjin.(2024).The ALMA-QUARKS Survey: Fibers' Role in Star Formation Unveiled in an Intermediate-mass Protocluster Region of the Vela D Cloud.ASTROPHYSICAL JOURNAL,976(2),241.
MLA	Yang, Dongting,et al."The ALMA-QUARKS Survey: Fibers' Role in Star Formation Unveiled in an Intermediate-mass Protocluster Region of the Vela D Cloud".ASTROPHYSICAL JOURNAL 976.2(2024):241.

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