Institutional Repository of Radio Astronomy Research Laboratory
| The Astrometric Animation of Water Masers toward the Mira Variable BX Cam | |
Xu, Shuangjing1,2; Imai, Hiroshi3,4,5; Yun, Youngjoo1; Zhang, Bo2; Rioja, Maria J.6,7,8; Dodson, Richard6; Cho, Se-Hyung1,9; Kim, Jaeheon1; Cui, Lang10 ; Sobolev, Andrey M.11; Chibueze, James O.12,13; Kim, Dong-Jin14,15; Amada, Kei3; Nakashima, Jun-ichi16; Orosz, Gabor17; Oyadomari, Miyako3; Oh, Sejin1; Yonekura, Yoshinori18; Sun, Yan2,19; Mai, Xiaofeng2,19; Zhang, Jingdong2,19; Wen, Shiming2; Jung, Taehyun1
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| 2022-12-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL
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| ISSN | 0004-637X |
| Volume | 941Issue:2Pages:105 |
| Contribution Rank | 10 |
| Abstract | We report very long baseline interferometry (VLBI) monitoring observations of the 22 GHz water (H2O) masers around the Mira variable BX Cam, which were carried out as a part of the EAVN Synthesis of Stellar Maser Animations project. Data of 37 epochs in total were obtained from 2018 May to 2021 June with a time interval of 3-4 weeks, spanning approximately three stellar pulsation periods (P = similar to 440 days). In particular, the dual-beam system equipped on the VERA stations was used to measure the kinematics and parallaxes of the H2O maser features. The measured parallax, pi = 1.79 +/- 0.08 mas, is consistent with Gaia EDR3 and previously measured VLBI parallaxes within a 1 sigma error level. The position of the central star was estimated, based on both the Gaia EDR3 data and the center position of the ring-like 43 GHz silicon-monoxide (SiO) maser distribution imaged with the Korean VLBI Network. The three-dimensional H2O maser kinematics indicates that the circumstellar envelope is expanding at a velocity of 13 +/- 4 km s(-1), while there are asymmetries in both the spatial and velocity distributions of the maser features. Furthermore, the H2O maser animation achieved by our dense monitoring program manifests the propagation of shock waves in the circumstellar envelope of BX Cam. |
| DOI | 10.3847/1538-4357/ac9599 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | BASE-LINE ARRAY ; SIO MASERS ; KINEMATICS ; CALIBRATION ; DISTANCE ; STARS |
| Funding Project | Inter-university collaborative project Japanese VLBI Network (JVN) of NAOJ ; JSPS KAKENHI[JP16H02167] ; CAS Light of West China Program[2021-XBQNXZ-005] ; National Natural Science Foundation of China[U2031212] ; National Natural Science Foundation of China[U1831136] ; Russian Ministry of Science and Higher Education[FEUZ-2020-0030] ; Shanghai Astronomical Observatory, Chinese Academy of Sciences[N2020-06-19-005] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000895911700001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | Inter-university collaborative project Japanese VLBI Network (JVN) of NAOJ ; JSPS KAKENHI ; CAS Light of West China Program ; National Natural Science Foundation of China ; Russian Ministry of Science and Higher Education ; Shanghai Astronomical Observatory, Chinese Academy of Sciences |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5006 |
| Collection | 射电天文研究室_星系宇宙学研究团组 科研仪器设备产出_利用南山26米射电望远镜（NSRT）观测数据的文章 |
| Corresponding Author | Xu, Shuangjing |
| Affiliation | 1.Korea Astron & Space Sci Inst, 776 Daedeok Daero, Daejeon 34055, South Korea 2.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 3.Kagoshima Univ, Grad Sch Sci & Engn, 1-21-35 Korimoto, Kagoshima 8900065, Japan 4.Kagoshima Univ, Amanogaawa Galaxy Astron Res Ctr, Grad Sch Sci & Engn, 1-21-35 Korimoto, Kagoshima 8900065, Japan 5.Kagoshima Univ, Ctr Gen Educ, Inst Comprehens Educ, 1-21-30 Korimoto, Kagoshima 8900065, Japan 6.Univ Western Australia, ICRAR, M468,35 Stirling Hwy, Crawley, WA 6009, Australia 7.CSIRO Astron & Space Sci, POB 1130, Bentley, WA 6102, Australia 8.Observ Astron Nacl IGN, Alfonso XII 3 & 5, E-28014 Madrid, Spain 9.Seoul Natl Univ, Dept Phys & Astron, Astron Program, Seoul 08826, South Korea 10.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China 11.Ural Fed Univ, 19 Mira St, Ekaterinburg 620002, Russia 12.North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa 13.Univ Nigeria, Fac Phys Sci, Dept Phys & Astron, Carver Bldg,1 Univ Rd, Nsukka, Nigeria 14.MIT, Haystack Observ, 99 Millstone Rd, Westford, MA 01886 USA 15.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany 16.Sun Yat Sen Univ, Sch Phys & Astron, 2 Daxue Rd, Zhuhai, Guangdong, Peoples R China 17.Joint Inst VLBI ERIC, Oude Hoogeveensedijk 4, NL-7991 PD Dwingeloo, Netherlands 18.Ibaraki Univ, Ctr Astron, 2-1-1 Bunkyo, Mito, Ibaraki 3108512, Japan 19.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Xu, Shuangjing,Imai, Hiroshi,Yun, Youngjoo,et al. The Astrometric Animation of Water Masers toward the Mira Variable BX Cam[J]. ASTROPHYSICAL JOURNAL,2022,941(2):105. |
| APA | Xu, Shuangjing.,Imai, Hiroshi.,Yun, Youngjoo.,Zhang, Bo.,Rioja, Maria J..,...&Jung, Taehyun.(2022).The Astrometric Animation of Water Masers toward the Mira Variable BX Cam.ASTROPHYSICAL JOURNAL,941(2),105. |
| MLA | Xu, Shuangjing,et al."The Astrometric Animation of Water Masers toward the Mira Variable BX Cam".ASTROPHYSICAL JOURNAL 941.2(2022):105. |
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| Xu-2022-The Astromet（44094KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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