The ALMA Survey of Star Formation and Evolution in Massive Protoclusters with Blue Profiles (ASSEMBLE): Core Growth, Cluster Contraction, and Primordial Mass Segregation

doi:10.3847/1538-4365/acfee5

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	The ALMA Survey of Star Formation and Evolution in Massive Protoclusters with Blue Profiles (ASSEMBLE): Core Growth, Cluster Contraction, and Primordial Mass Segregation
	Xu, Fengwei 16,18; Wang, Ke 16; Liu, Tie 11; Tang, Mengyao 17; II, Neal J. Evans 20; Palau, Aina 19; Morii, Kaho 1,14; He JH(何金华)8,9,10; Sanhueza, Patricio 7,14; Liu, Hong-Li 6
刊名	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2024
卷号	270 期号:1
ISSN号	0067-0049
DOI	10.3847/1538-4365/acfee5
产权排序	第9完成单位
文献子类	Article
英文摘要	The Atacama Large Millimeter/submillimeter Array (ALMA) Survey of Star Formation and Evolution in Massive Protoclusters with Blue Profiles (ASSEMBLE) aims to investigate the process of mass assembly and its connection to high-mass star formation theories in protoclusters in a dynamic view. We observed 11 massive (M clump greater than or similar to 103 M circle dot), luminous (L bol greater than or similar to 104 L circle dot), and blue-profile (infall signature) clumps by ALMA with resolution of similar to 2200-5500 au (median value of 3500 au) at 350 GHz (870 mu m). We identified 248 dense cores, including 106 cores showing protostellar signatures and 142 prestellar core candidates. Compared to early stage infrared dark clouds (IRDCs) by ASHES, the core mass and surface density within the ASSEMBLE clumps exhibited a significant increment, suggesting concurrent core accretion during the evolution of the clumps. The maximum mass of prestellar cores was found to be 2 times larger than that in IRDCs, indicating that evolved protoclusters have the potential to harbor massive prestellar cores. The mass relation between clumps and their most massive core (MMCs) is observed in ASSEMBLE but not in IRDCs, which is suggested to be regulated by multiscale mass accretion. The mass correlation between the core clusters and their MMCs has a steeper slope compared to that observed in stellar clusters, which can be due to fragmentation of the MMC and stellar multiplicity. We observe a decrease in core separation and an increase in central concentration as protoclusters evolve. We confirm primordial mass segregation in the ASSEMBLE protoclusters, possibly resulting from gravitational concentration and/or gas accretion.
学科主题	天文学
URL标识	查看原文
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
资助项目	National Science Foundation of China; National Key RAMP;D Program of China; China Manned Space Project; High-Performance Computing Platform of Peking University; China-Chile Joint Research Fund (CCJRF); Chinese academy of sciences; Shanghai Pujiang Program; Yunnan provincial Department of Science and Technology; JSPS; Yunnan Fundamental Research Project; UNAM-PAPIIT; Sistema Nacional de Investigadores of CONAHCyT; CONAHCyT; ANID through the BASAL project; Fondecyt Regular; Chinese Academy of Sciences (CAS); Academy of Finland; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[11973013]; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[12033005]; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[11721303]; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[12073061]; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[12122307]; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[12203011]; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[12103045]; Korea Astronomy and Space Science Institute - Korea government (MSIT)[2022YFA1603100]; Korea Astronomy and Space Science Institute - Korea government (MSIT)[2019YFA0405100]; JSPS KAKENHI
WOS关键词	INFRARED DARK CLOUD ; COMPACT SOURCE CATALOG ; SCALE GREATER-THAN-OR-EQUAL-TO-10 PC ; RADIATION-HYDRODYNAMIC SIMULATIONS ; VELOCITY-COHERENT FILAMENTS ; THERMAL JEANS FRAGMENTATION ; LARGE ARRAY OBSERVATIONS ; INNER GALACTIC PLANE ; FORMING REGIONS ; HIERARCHICAL FRAGMENTATION
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001132952700001
资助机构	National Science Foundation of China ; National Key RAMP ; D Program of China ; China Manned Space Project ; High-Performance Computing Platform of Peking University ; China-Chile Joint Research Fund (CCJRF) ; Chinese academy of sciences ; Shanghai Pujiang Program ; Yunnan provincial Department of Science and Technology ; JSPS ; Yunnan Fundamental Research Project ; UNAM-PAPIIT ; Sistema Nacional de Investigadores of CONAHCyT ; CONAHCyT ; ANID through the BASAL project ; Fondecyt Regular ; Chinese Academy of Sciences (CAS) ; Academy of Finland ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[11973013, 12033005, 11721303, 12073061, 12122307, 12203011, 12103045] ; Korea Astronomy and Space Science Institute - Korea government (MSIT)[2022YFA1603100, 2019YFA0405100] ; JSPS KAKENHI[CMS-CSST-2021-A09, CMS-CSST-2021-B06] ; [2211] ; [114231KYSB20200009] ; [20PJ1415500] ; [202101BA070001-261] ; [22J21529] ; [JP22H01271] ; [JP23H01221] ; [202301AT070118] ; [IG100223] ; [IN10382] ; [86372] ; [FB210003] ; [1220610] ; [348342] ; [NRF- 2019R1A2C1010851] ; [2023-1-84000] ; [JP20H05645]
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/26479]
专题	云南天文台_其他
作者单位	1.Department of Astronomy, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; 2.Physical Research Laboratory, Navrangpura, Ahmedabad-380 009, India; 3.Department of Physics, University of Helsinki, PO Box 64, FI-00014 Helsinki, Finland; 4.Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; 5.Departamento de Astronomía, Universidad de Concepción, Casilla 160-C, Concepción, Chile; 6.Department of Astronomy, Yunnan University, Kunming 650091, People's Republic of China; 7.Astronomical Science Program, The Graduate University for Advanced Studies, SOKENDAI, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; 8.Departamento de Astronomía, Universidad de Chile, Las Condes, 7591245 Santiago, Chile; 9.Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing 100101, People's Republic of China; 10.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, People's Republic of China;
推荐引用方式 GB/T 7714	Xu, Fengwei,Wang, Ke,Liu, Tie,et al. The ALMA Survey of Star Formation and Evolution in Massive Protoclusters with Blue Profiles (ASSEMBLE): Core Growth, Cluster Contraction, and Primordial Mass Segregation[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2024,270(1).
APA	Xu, Fengwei.,Wang, Ke.,Liu, Tie.,Tang, Mengyao.,II, Neal J. Evans.,...&Toth, L. Viktor.(2024).The ALMA Survey of Star Formation and Evolution in Massive Protoclusters with Blue Profiles (ASSEMBLE): Core Growth, Cluster Contraction, and Primordial Mass Segregation.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,270(1).
MLA	Xu, Fengwei,et al."The ALMA Survey of Star Formation and Evolution in Massive Protoclusters with Blue Profiles (ASSEMBLE): Core Growth, Cluster Contraction, and Primordial Mass Segregation".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 270.1(2024).