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CO Outflow Candidates toward the W3/4/5 Complex I: The Sample and Its Spatial Distribution
Li, Yingjie1,2; Xu, Ye1; Sun, Yan1; Yan, Qing-Zeng1; Ma, Yuehui1,3; Yang, Ji1
2019-06-01
Source PublicationASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
ISSN0067-0049
Volume242Issue:2Pages:14
Abstract

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.

KeywordISM: jets and outflows ISM: molecules stars: formation
DOI10.3847/1538-4365/ab1e55
WOS KeywordPERSEUS SPIRAL ARM ; STAR-FORMATION ; MOLECULAR OUTFLOWS ; CLUMP IDENTIFICATION ; ELECTRON-TEMPERATURE ; DYNAMICAL EVOLUTION ; STELLAR POPULATIONS ; O STARS ; CATALOG ; CLOUDS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000470866900001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/26979
Collection中国科学院紫金山天文台
Corresponding AuthorLi, Yingjie
Affiliation1.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
Recommended Citation
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.
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