Photometric Properties and Stellar Parameters of the Rapidly Rotating Magnetic Early-B Star HD 345439
文献类型：期刊论文
| 作者 | Shen, Dong-Xiang2; Liu, Jin-Zhong1 ; Zhu, Chun-Hua2; Lu, Guo-Liang2; Zhang, Yu1; Lu, Cheng-Long1; Wang, Hao-Zhi1; Li, Lei2; Lu, Xi-Zhen2; Yu, Jin-Long2
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2023 |
| 卷号 | 23期号:1页码:14 |
| 关键词 | stars: chemically peculiar stars: early-type stars: fundamental parameters stars: magnetic field |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/ac9f07 |
| 通讯作者 | Liu, Jin-Zhong(liujinzh@xao.ac.cn) |
| 英文摘要 | We first present the multicolor photometry results of the rapidly rotating magnetic star HD 345439 using the Nanshan One-meter Wide-field Telescope. From the photometric observations, we derive a rotational period of 0.7699 +/- 0.0014 day. The light curves of HD 345439 are dominated by the double asymmetric S-wave feature that arises from the magnetic clouds. Pulsating behaviors are not observed in Sector 41 of the Transiting Exoplanet Survey Satellite. No evidence is found of the occurrence of centrifugal breakout events neither in the residual flux nor in the systematic variations at the extremum of the light curve. Based on the hypothesis of the Rigidly Rotating Magnetosphere model, we restrict the magnetic obliquity angle beta and the rotational inclination angle i so that they satisfy the approximate relation beta + i asymptotic to 105 degrees. The color excess, extinction, and luminosity are determined to be E ((B-V)) = 0.745 +/- 0.016 mag, A(V) = 2.31 +/- 0.05 mag, and log(L/L-circle dot)=3.82 +/- 0.1 dex, respectively. Furthermore, we derive the effective temperature as T-eff = 22 +/- 1 kK and the surface gravity as log g = 4.00 +/- 0.22. The mass M=7.24(-1.24)(+1.75)M(circle dot), radius R = 4.44(-1.93)(+2.68) R-circle dot=-tau(age) = 23.62(-21.97)(+4.24) Myr are estimated from the Hertzsprung-Russell diagram. |
| WOS关键词 | SPECTRAL VARIABILITY ; ATMOSPHERIC PARAMETERS ; MAGNETOSPHERE MODEL ; FIELD MEASUREMENTS ; VARIABLE-STARS ; MASSIVE STARS ; ALPHA-BRIGHT ; DISCOVERY ; EMISSION ; CLUSTER |
| 资助项目 | Natural Science Foundation of Xinjiang[2021D01C075] ; National Natural Science Foundation of China[U2031204] ; National Natural Science Foundation of China[12163005] ; National Natural Science Foundation of China[11863005] ; China Manned Space Project[CMS-CSST-2021-A08] ; China Manned Space Project[CMS-CSST-2021-A10] ; National Key R&D Program of China[2022YFE0126200] ; National Development and Reform Commission ; NASA[NAS 526555] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000905390700001 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| 资助机构 | Natural Science Foundation of Xinjiang ; National Natural Science Foundation of China ; China Manned Space Project ; National Key R&D Program of China ; National Development and Reform Commission ; NASA |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5035]  |
| 专题 | 新疆天文台_光学天文与技术应用研究室 光学天文与技术应用研究室_利用南山1米大视场望远镜（NOWT）观测数据的文章 |
| 通讯作者 | Liu, Jin-Zhong |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, Natl Astron Observ, Urumqi 830000, Peoples R China 2.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Dong-Xiang,Liu, Jin-Zhong,Zhu, Chun-Hua,et al. Photometric Properties and Stellar Parameters of the Rapidly Rotating Magnetic Early-B Star HD 345439[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2023,23(1):14. |
| APA | Shen, Dong-Xiang.,Liu, Jin-Zhong.,Zhu, Chun-Hua.,Lu, Guo-Liang.,Zhang, Yu.,...&Rustem, Abdurepqet.(2023).Photometric Properties and Stellar Parameters of the Rapidly Rotating Magnetic Early-B Star HD 345439.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,23(1),14. |
| MLA | Shen, Dong-Xiang,et al."Photometric Properties and Stellar Parameters of the Rapidly Rotating Magnetic Early-B Star HD 345439".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 23.1(2023):14. |
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来源：新疆天文台
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