High-mass Star Formation in the nearby Region G352.630-1.067. I. Parallax

doi:10.3847/1538-4357/aaf862

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	High-mass Star Formation in the nearby Region G352.630-1.067. I. Parallax
	Chen, Xi 6,7; Li, Jing-Jing 1; Zhang, Bo 7; Ellingsen, Simon P.2; Xu, Ye 1,3; Ren, Zhi-Yuan 5; Shen, Zhi-Qiang 3,7; Sobolev, Andrej M.4
刊名	ASTROPHYSICAL JOURNAL
	2019-02-01
卷号	871 期号:2 页码:11
关键词	Galaxy: structure masers parallaxes stars: formation
ISSN号	0004-637X
DOI	10.3847/1538-4357/aaf862
英文摘要	Young or forming high-mass stars that are nearby and not within a cluster environment have the potential to provide fundamental insights into star formation. In this paper we report such a candidate (G352.630-1.067), for which we have measured the distance through very long baseline interferometry parallax observations of the associated 6.7 GHz class II methanol maser. We determine the distance to the source to be 0.69(-0.08)(+0.10) kpc, which makes it the second nearest high-mass star formation region (HMSFR) known, with only the Orion Nebula being closer. This may place this source, not within a Galactic spiral arm, but in the region between the Local and Sagittarius arms, indicating that molecular clouds in interarm regions may also generate high-mass stars. Kinematic association between this source and the Sagittarius Arm suggests that it may be located in a spur extending outward from this arm. Comparison with the known, nearby HMSFRs (distances less than 1 kpc), reveal that G352.630-1.067 is in a more isolated environment than others, hence providing an excellent candidate for investigations of the processes that form individual high-mass stars. We find a good spatial correlation between the 6.7 GHz methanol maser and high angular resolution images of the infrared outflow, suggesting that the class II methanol masers are closely associated with a jet/outflow in this source.
资助项目	National Natural Science Foundation of China[11590781] ; National Natural Science Foundation of China[11873002] ; National Natural Science Foundation of China[11590780] ; Australian Research Council - Australian Government[DP180101061] ; major scientific research project of Guangdong regular institutions of higher learning[2017KZDXM062]
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000457437100010
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/31959]
专题	中国科学院上海天文台
通讯作者	Chen, Xi
作者单位	1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Tasmania, Sch Nat Sci, Hobart, Tas 7001, Australia 3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China 4.Ural Fed Univ, 19 Mira St, Ekaterinburg 620002, Russia 5.Chinese Acad Sci, Natl Astron Observ, Datun Rd A20, Beijing, Peoples R China 6.GuangZhou Univ, Ctr Astrophys, Guangzhou 510006, Guangdong, Peoples R China 7.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
推荐引用方式 GB/T 7714	Chen, Xi,Li, Jing-Jing,Zhang, Bo,et al. High-mass Star Formation in the nearby Region G352.630-1.067. I. Parallax[J]. ASTROPHYSICAL JOURNAL,2019,871(2):11.
APA	Chen, Xi.,Li, Jing-Jing.,Zhang, Bo.,Ellingsen, Simon P..,Xu, Ye.,...&Sobolev, Andrej M..(2019).High-mass Star Formation in the nearby Region G352.630-1.067. I. Parallax.ASTROPHYSICAL JOURNAL,871(2),11.
MLA	Chen, Xi,et al."High-mass Star Formation in the nearby Region G352.630-1.067. I. Parallax".ASTROPHYSICAL JOURNAL 871.2(2019):11.