Space astrometry of the very massive similar to 150 M-circle dot candidate runaway star VFTS682
文献类型：期刊论文
| 作者 | Renzo, M.2; de Mink, S. E.2; Lennon, D. J.3,4; Platais, I.5; van der Marel, R. P.5,6; Laplace, E.2; Bestenlehner, J. M.7; Evans, C. J.8; Henault-Brunet, V.9; Justham, S.1,2,10 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2019 |
| 卷号 | 482期号:1页码:L102-L106 |
| ISSN号 | 0035-8711 |
| 关键词 | astrometry stars: kinematics and dynamics stars: individual: VFTS682 stars: massive |
| DOI | 10.1093/mnrasl/sly194 |
| 英文摘要 | How very massive stars form is still an open question in astrophysics. VFTS682 is among the most massive stars known, with an inferred initial mass of greater than or similar to 150 M-circle dot. It is located in 30 Doradus at a projected distance of 29 pc from the central cluster R136. Its apparent isolation led to two hypotheses: either it formed in relative isolation or it was ejected dynamically from the cluster. We investigate the kinematics of VFTS682 as obtained by Gaia and Hubble Space Telescope astrometry. We derive a projected velocity relative to the cluster of 38 +/- 17 km s(-1) (1 sigma confidence interval). Although the error bars are substantial, two independent measures suggest that VFTS682 is a runaway ejected from the central cluster. This hypothesis is further supported by a variety of circumstantial clues. The central cluster is known to harbour other stars more massive than 150 M-circle dot of similar spectral type and recent astrometric studies on VFTS16 and VFTS72 provide direct evidence that the cluster can eject some of its most massive members, in agreement with theoretical predictions. If future data confirm the runaway nature, this would make VFTS682 the most massive runaway star known to date. |
| WOS关键词 | LARGE-MAGELLANIC-CLOUD ; 30 DORADUS ; STELLAR ; KINEMATICS ; CLUSTERS ; ORIGIN ; FORM |
| 资助项目 | European Unions Horizon 2020 research and innovation programme from the European Research Council (ERC)[715063] ; National research council-Canada (NRC-Canada) Plaskett Fellowship |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000482176700022 |
| 资助机构 | European Unions Horizon 2020 research and innovation programme from the European Research Council (ERC) ; European Unions Horizon 2020 research and innovation programme from the European Research Council (ERC) ; National research council-Canada (NRC-Canada) Plaskett Fellowship ; National research council-Canada (NRC-Canada) Plaskett Fellowship ; European Unions Horizon 2020 research and innovation programme from the European Research Council (ERC) ; European Unions Horizon 2020 research and innovation programme from the European Research Council (ERC) ; National research council-Canada (NRC-Canada) Plaskett Fellowship ; National research council-Canada (NRC-Canada) Plaskett Fellowship ; European Unions Horizon 2020 research and innovation programme from the European Research Council (ERC) ; European Unions Horizon 2020 research and innovation programme from the European Research Council (ERC) ; National research council-Canada (NRC-Canada) Plaskett Fellowship ; National research council-Canada (NRC-Canada) Plaskett Fellowship ; European Unions Horizon 2020 research and innovation programme from the European Research Council (ERC) ; European Unions Horizon 2020 research and innovation programme from the European Research Council (ERC) ; National research council-Canada (NRC-Canada) Plaskett Fellowship ; National research council-Canada (NRC-Canada) Plaskett Fellowship |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/27354]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Renzo, M. |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1098 XH Amsterdam, Netherlands 3.European Space Astron Ctr, ESA, Apdo Correos 78, E-28691 Madrid, Spain 4.Inst Astrofis Canarias, E-38205 Tenerife, Spain 5.Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA 6.Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA 7.Univ Sheffield, Dept Phys & Astron, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England 8.Royal Observ Edinburgh, UK Astron Technol Ctr, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland 9.Herzberg Astron & Astrophys, Natl Res Council, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada 10.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Renzo, M.,de Mink, S. E.,Lennon, D. J.,et al. Space astrometry of the very massive similar to 150 M-circle dot candidate runaway star VFTS682[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,482(1):L102-L106. |
| APA | Renzo, M..,de Mink, S. E..,Lennon, D. J..,Platais, I..,van der Marel, R. P..,...&Vink, J. S..(2019).Space astrometry of the very massive similar to 150 M-circle dot candidate runaway star VFTS682.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,482(1),L102-L106. |
| MLA | Renzo, M.,et al."Space astrometry of the very massive similar to 150 M-circle dot candidate runaway star VFTS682".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 482.1(2019):L102-L106. |
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来源：国家天文台
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