CO Outflow Candidates toward the W3/4/5 Complex I: The Sample and Its Spatial Distribution

doi:10.3847/1538-4365/ab1e55

	CO Outflow Candidates toward the W3/4/5 Complex I: The Sample and Its Spatial Distribution
	Li, Yingjie 1,2; Xu, Ye1 ; Sun, Yan 1; Yan, Qing-Zeng 1; Ma, Yuehui 1,3; Yang, Ji1
刊名	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2019-06-01
卷号	242 期号:2 页码:14
关键词	ISM: jets and outflows ISM: molecules stars: formation
ISSN号	0067-0049
DOI	10.3847/1538-4365/ab1e55
通讯作者	Li, Yingjie(liyj@pmo.ac.cn)
英文摘要	Using the Purple Mountain Observatory Delingha 13.7 m telescope, we conducted a large-scale (CO)-C-12 (J = 1 -> 0) outflow survey (over similar to 110 deg(2)) toward the W3/4/5 complex and its surroundings. In total, 459 outflow candidates were identified. Approximately 62% (284) were located in the Perseus arm, including the W3/4/5 complex and its surroundings, while similar to 35% (162) were located in the Local arm, similar to 1% (5) were in the Outer arm, and similar to 2% (8) were in two interarm regions. This result indicated that star formation was concentrated in the Galactic spiral arms. The detailed spatial distribution of the outflow candidates showed that the Perseus arm presented the most active star formation among the study regions. The W3/4/5 complex is a great region to research massive star formation in a triggered environment. A key region, which has been well studied by other researches, is in the eastern high-density W3 complex that neighbors the W4 complex. Two shell-like structures in the Local arm contain candidates that can be used to study the impact on star formation imposed by massive or intermediate-mass stars in relatively isolated systems. The majority of outflow candidates in the two interarm regions and the Outer arm are located in filamentary structures.
WOS关键词	PERSEUS SPIRAL ARM ; STAR-FORMATION ; MOLECULAR OUTFLOWS ; CLUMP IDENTIFICATION ; ELECTRON-TEMPERATURE ; DYNAMICAL EVOLUTION ; STELLAR POPULATIONS ; O STARS ; CATALOG ; CLOUDS
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000470866900001
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/26978]
专题	中国科学院紫金山天文台
通讯作者	Li, Yingjie
作者单位	1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Sci & Technol China, Chinese Acad Sci, Hefei 230026, Anhui, Peoples R China 3.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Yingjie,Xu, Ye,Sun, Yan,et al. CO Outflow Candidates toward the W3/4/5 Complex I: The Sample and Its Spatial Distribution[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2019,242(2):14.
APA	Li, Yingjie,Xu, Ye,Sun, Yan,Yan, Qing-Zeng,Ma, Yuehui,&Yang, Ji.(2019).CO Outflow Candidates toward the W3/4/5 Complex I: The Sample and Its Spatial Distribution.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,242(2),14.
MLA	Li, Yingjie,et al."CO Outflow Candidates toward the W3/4/5 Complex I: The Sample and Its Spatial Distribution".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 242.2(2019):14.