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Molecular Gas toward the Gemini OB1 Molecular Cloud Complex. II. CO Outflow Candidates with Possible WISE Associations
Li,Yingjie1,2; Li,Fa-Cheng1,3; Xu,Ye1; Wang,Chen1,3; Du,Xin-Yu1,3; Yang,Wenjin1,2; Yang,Ji1
2018-03-07
Source PublicationThe Astrophysical Journal Supplement Series
ISSN0067-0049
Volume235Issue:1
AbstractAbstract We present a large-scale survey of CO outflows in the Gem OB1 molecular cloud complex and its surroundings, using the Purple Mountain Observatory Delingha 13.7 m telescope. A total of 198 outflow candidates were identified over a large area (~58.5 square degrees), of which 193 are newly detected. Approximately 68% (134/198) are associated with the Gem OB1 molecular cloud complex, including clouds GGMC 1, GGMC 2, BFS 52, GGMC 3, and GGMC 4. Other regions studied are: the Local arm (Local Lynds, West Front), Swallow, Horn, and Remote cloud. Outflow candidates in GGMC 1, BFS 52, and Swallow are mainly located at ring-like or filamentary structures. To avoid excessive uncertainty in distant regions (?3.8 kpc), we only estimated the physical parameters for clouds in the Gem OB1 molecular cloud complex and in the Local arm. In those clouds, the total kinetic energy and the energy injection rate of the identified outflow candidates are ?1% and ?3% of the turbulent energy and the turbulent dissipation rate of each cloud, indicating that the identified outflow candidates cannot provide enough energy to balance turbulence of their host cloud at the scale of the entire cloud (several to dozens of parsecs). The gravitational binding energy of each cloud is ?135 times the total kinetic energy of the identified outflow candidates within the corresponding cloud, indicating that the identified outflow candidates cannot cause major disruptions to the integrity of their host cloud at the scale of the entire cloud.
KeywordISM: jets and outflows ISM: Molecules stars: formation
DOI10.3847/1538-4365/aaab67
Language英语
WOS IDIOP:0067-0049-235-1-aaab67
PublisherThe American Astronomical Society
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22395
Collection中国科学院紫金山天文台
Affiliation1.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, People's Republic of China; liyj@pmo.ac.cn, xuye@pmo.ac.cn
2.University of Science and Technology of China, Chinese Academy of Sciences, Hefei, Anhui 230026, People's Republic of China
3.Graduate University of the Chinese Academy of Sciences, 19A Yuquan Road, Shijingshan District, Beijing 100049, People's Republic of China
Recommended Citation
GB/T 7714
Li,Yingjie,Li,Fa-Cheng,Xu,Ye,et al. Molecular Gas toward the Gemini OB1 Molecular Cloud Complex. II. CO Outflow Candidates with Possible WISE Associations[J]. The Astrophysical Journal Supplement Series,2018,235(1).
APA Li,Yingjie.,Li,Fa-Cheng.,Xu,Ye.,Wang,Chen.,Du,Xin-Yu.,...&Yang,Ji.(2018).Molecular Gas toward the Gemini OB1 Molecular Cloud Complex. II. CO Outflow Candidates with Possible WISE Associations.The Astrophysical Journal Supplement Series,235(1).
MLA Li,Yingjie,et al."Molecular Gas toward the Gemini OB1 Molecular Cloud Complex. II. CO Outflow Candidates with Possible WISE Associations".The Astrophysical Journal Supplement Series 235.1(2018).
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