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High-mass Star Formation in the nearby Region G352.630-1.067. I. Parallax
Chen, Xi1,2; Li, Jing-Jing3; Zhang, Bo2; Ellingsen, Simon P.4; Xu, Ye3,5; Ren, Zhi-Yuan6; Shen, Zhi-Qiang2,5; Sobolev, Andrej M.7
2019-02-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume871Issue:2Pages:11
Corresponding AuthorChen, Xi(chenxi@gzhu.edu.cn)
AbstractYoung 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.
KeywordGalaxy: structure masers parallaxes stars: formation
DOI10.3847/1538-4357/aaf862
WOS KeywordMETHANOL MASERS ; 6.7 GHZ ; CATALOG
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000457437100010
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/18786
Collection中国科学院紫金山天文台
Corresponding AuthorChen, Xi
Affiliation1.GuangZhou Univ, Ctr Astrophys, Guangzhou 510006, Guangdong, Peoples R China
2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
4.Univ Tasmania, Sch Nat Sci, Hobart, Tas 7001, Australia
5.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
6.Chinese Acad Sci, Natl Astron Observ, Datun Rd A20, Beijing, Peoples R China
7.Ural Fed Univ, 19 Mira St, Ekaterinburg 620002, Russia
Recommended Citation
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.
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