DIFFERENT EVOLUTIONARY STAGES IN THE MASSIVE STAR-FORMING REGION W3 MAIN COMPLEX

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 分子云与恒星形成研究团组

	DIFFERENT EVOLUTIONARY STAGES IN THE MASSIVE STAR-FORMING REGION W3 MAIN COMPLEX
	Wang, Yuan1,2,3,4 ; Beuther, Henrik 3; Zhang, Qizhou 5; Bik, Arjan 3; Rodon, Javier A.6; Jiang, Zhibo1,2 ; Fallscheer, Cassandra 7,8
刊名	ASTROPHYSICAL JOURNAL
	2012-08-01
卷号	754 期号:2 页码:87(22pp)
关键词	ISM: individual objects (W3) ISM: jets and outflows ISM: molecules stars: formation stars: massive
ISSN号	0004-637X
英文摘要	We observed three high-mass star-forming regions in the W3 high-mass star formation complex with the Submillimeter Array and IRAM 30 m telescope. These regions, i.e., W3 SMS1 (W3 IRS5), SMS2 (W3 IRS4) and SMS3, are in different evolutionary stages and are located within the same large-scale environment, which allows us to study rotation and outflows as well as chemical properties in an evolutionary sense. While we find multiple millimeter continuum sources toward all regions, these three subregions exhibit different dynamical and chemical properties, which indicate that they are in different evolutionary stages. Even within each subregion, massive cores of different ages are found, e. g., in SMS2, sub-sources from the most evolved ultracompact HII region to potential starless cores exist within 30,000 AU of each other. Outflows and rotational structures are found in SMS1 and SMS2. Evidence for interactions between the molecular cloud and the HII regions is found in the (CO)-C-13 channel maps, which may indicate triggered star formation.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	YOUNG STELLAR OBJECTS ; FAR-INFRARED OBSERVATIONS ; GIANT MOLECULAR CLOUD ; ORION-KL ; LINE SURVEY ; PROTOSTELLAR CORES ; CHEMICAL-STRUCTURE ; ARRAY OBSERVATIONS ; APERTURE SYNTHESIS ; RADIO-CONTINUUM
收录类别	SCI
语种	英语
WOS记录号	WOS:000306666700008
公开日期	2013-01-31
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/8006]
专题	紫金山天文台_分子云与恒星形成研究团组
作者单位	1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 3.Max Planck Inst Astron, D-69117 Heidelberg, Germany 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 5.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA 6.European So Observ, Santiago 19, Chile 7.Univ Victoria, Dept Phys & Astron, STN CSC, Victoria, BC V8W 3P6, Canada 8.Natl Res Council Canada, Victoria, BC V9E 2E7, Canada
推荐引用方式 GB/T 7714	Wang, Yuan,Beuther, Henrik,Zhang, Qizhou,et al. DIFFERENT EVOLUTIONARY STAGES IN THE MASSIVE STAR-FORMING REGION W3 MAIN COMPLEX[J]. ASTROPHYSICAL JOURNAL,2012,754(2):87(22pp).
APA	Wang, Yuan.,Beuther, Henrik.,Zhang, Qizhou.,Bik, Arjan.,Rodon, Javier A..,...&Fallscheer, Cassandra.(2012).DIFFERENT EVOLUTIONARY STAGES IN THE MASSIVE STAR-FORMING REGION W3 MAIN COMPLEX.ASTROPHYSICAL JOURNAL,754(2),87(22pp).
MLA	Wang, Yuan,et al."DIFFERENT EVOLUTIONARY STAGES IN THE MASSIVE STAR-FORMING REGION W3 MAIN COMPLEX".ASTROPHYSICAL JOURNAL 754.2(2012):87(22pp).