VLBI astrometry on the white dwarf pulsar AR Scorpii
文献类型:期刊论文
作者 | Jiang, Pengfei8,9; Cui, Lang7,9; Yang, Jun6; Zhang, Bo5; Xu, Shuangjing4,5; Shu, Fengchun5; Jiang, Wu5; Chen W(陈文)3,8; Li, Guanghui9; Xia, Bo5 |
刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
出版日期 | 2023-02-07 |
卷号 | 520期号:2页码:2942-2951 |
ISSN号 | 0035-8711 |
关键词 | techniques: high angular resolution parallaxes pulsars: individual: AR Sco white dwarfs radio continuum: stars |
DOI | 10.1093/mnras/stad327 |
产权排序 | 第7完成单位 |
文献子类 | Article |
英文摘要 | AR Scorpii (AR Sco), the only-known radio-pulsing white dwarf binary, shows unusual pulsating emission at the radio, infrared, optical, and ultraviolet bands. To determine its astrometric parameters at the radio band independently, we conducted multi-epoch Very Long Baseline Interferometry (VLBI) phase-referencing observations with the European VLBI Network at 5 GHz and the Chinese VLBI Network plus the Warkworth 30-m telescope (New Zealand) at 8.6 GHz. By using the differential VLBI astrometry, we provide high-precision astrometric measurements on the parallax (pi = 8.52(-0.07)(+0.04) mas) and proper motion (mu(alpha) = 9.48(-0.07)(+0.04) mas yr(-1), mu(delta) = -51.32(-0.38)(+0.22) mas yr (-1)). The new VLBI results agree with the optical Gaia astrometry. Our kinematic analysis reveals that the Galactic space velocities of AR Sco are quite consistent with that of both intermediate polars and polars. Combined with the previous tightest VLBI constraint on the size, our parallax distance suggests that the radio emission of AR Sco should be located within the light cylinder of its white dwarf. |
学科主题 | 天文学 ; 射电天文学 ; 射电天文方法 |
URL标识 | 查看原文 |
出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
WOS关键词 | X-RAY ; OPTICAL OBSERVATIONS ; EMISSION GEOMETRY ; RADIO-EMISSION ; BLACK-HOLE ; BINARY ; MASS ; SCO ; KINEMATICS ; HERCULIS |
资助项目 | CAS Light of West China' Program[2021-XBQNXZ-005] ; National Natural Science Foundation of China[U2031212] ; National Natural Science Foundation of China[11673051] ; National Natural Science Foundation of China[U1831136] ; Youth Innovation Promotion Association of the CAS[2017084] ; European Union[RI-261525] ; Special Fund for Astronomy from the Ministry of Finance in China |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | OXFORD UNIV PRESS |
WOS记录号 | WOS:000941753400005 |
资助机构 | CAS Light of West China' Program[2021-XBQNXZ-005] ; National Natural Science Foundation of China[U2031212, 11673051, U1831136] ; Youth Innovation Promotion Association of the CAS[2017084] ; European Union[RI-261525] ; Special Fund for Astronomy from the Ministry of Finance in China |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25871] |
专题 | 云南天文台_射电天文研究组 |
通讯作者 | Cui, Lang |
作者单位 | 1.School of Electronic and Electrical Engineering, Shangqiu Normal University, Wenhua Road 298, Shangqiu, Henan 476000, P. R. China 2.Institute for Radio Astronomy and Space Research, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand; 3.Yunnan Observatories, Chinese Academy of Sciences, 650216 Kunming, Yunnan, P.R. China; 4.Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea; 5.Shanghai Astronomical Observatory, Chinese Academy of Sciences, 200030 Shanghai, P. R. China; 6.Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden; 7.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, 150 Science 1-Street, 830011 Urumqi, P. R. China; 8.School of Astronomy and Space Science, University of Chinese Academy of Sciences, 100049 Beijing, P. R. China; 9.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, 150 Science 1-Street, 830011 Urumqi, P. R. China; |
推荐引用方式 GB/T 7714 | Jiang, Pengfei,Cui, Lang,Yang, Jun,et al. VLBI astrometry on the white dwarf pulsar AR Scorpii[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2023,520(2):2942-2951. |
APA | Jiang, Pengfei.,Cui, Lang.,Yang, Jun.,Zhang, Bo.,Xu, Shuangjing.,...&An, Tao.(2023).VLBI astrometry on the white dwarf pulsar AR Scorpii.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,520(2),2942-2951. |
MLA | Jiang, Pengfei,et al."VLBI astrometry on the white dwarf pulsar AR Scorpii".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 520.2(2023):2942-2951. |
入库方式: OAI收割
来源:云南天文台
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。