Study on the variation of orbital period, quasi-periodic oscillations and negative superhumps in V729 Sgr
文献类型：期刊论文
| 作者 | Sun, Qi-Bin4,5; Qian SB(钱声帮)3,4,5 ; Dong, Ai-Jun4,5; Zhi, Qi-Jun4,5; Han ZT(韩忠涛)3; Liu W(刘伟)3; Chang, Xin2; Liu, Chang4,5; Xiang, Hong-Bin4,5; Peng, Xue-Bing4,5
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| 刊名 | NEW ASTRONOMY
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| 出版日期 | 2022-05 |
| 卷号 | 93 |
| ISSN号 | 1384-1076 |
| 关键词 | Stars Binaries Eclipsing stars Dwarf novae stars Evolution stars Individual V729 sgr |
| DOI | 10.1016/j.newast.2021.101751 |
| 产权排序 | 第3完成单位 |
| 文献子类 | Article |
| 英文摘要 | Based on K2 and our observations of V729 Sgr, the study of the variation of orbital period, quasi-periodic oscillations (QPOs) and negative superhumps are presented. Using all available mid-eclipse times during quiescence, we find that V729 Sgr has a cyclic variation of the orbital period, with periods and amplitudes of 9.64 years and similar to 442.37 s, respectively. Based on the interpret of light travel-time effect, the mass of third body is derived as M(3)sini ' = 0.24(+/- 0.016)M-circle dot. When the third body is coplanar with the central body system, the third body may be a low-mass star. Using the Weighted Wavelet Z-transform (WWZ) method, we find for the first time that V729 Sgr has QPOs with the period of similar to 1030-3370 s. Using WWZ method, we find that V729 Sgr also has negative superhumps in the first quiescence, indicating that the negative superhumps may be permanent in the quiescence of V729 Sgr. |
| 学科主题 | 天文学 ; 恒星与银河系 ; 恒星形成与演化 |
| URL标识 | 查看原文 |
| 出版地 | RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS |
| WOS关键词 | DWARF NOVA OSCILLATIONS ; EQUATORIAL IRREGULAR VARIABLES ; CATACLYSMIC VARIABLES ; KEPLER OBSERVATIONS ; RAPID OSCILLATIONS ; INSTABILITY ; BINARIES ; SOUTHERN ; MODEL ; DISK |
| 资助项目 | National Natural Science Foun-dation of China[11933008] ; National Natural Science Foun-dation of China[U1831120] ; National Natural Science Foun-dation of China[U1731238] ; Science and Technology Foundation of Guizhou province[(2019) 1241] ; Science and Technology Foundation of Guizhou province[KY (2020) 003] ; National Key R&D Program of China[2018YFA0404602] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000820826000003 |
| 资助机构 | National Natural Science Foun-dation of China[11933008, U1831120, U1731238] ; Science and Technology Foundation of Guizhou province[(2019) 1241, KY (2020) 003] ; National Key R&D Program of China[2018YFA0404602] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/25282]  |
| 专题 | 云南天文台_双星与变星研究组 |
| 通讯作者 | Qian SB(钱声帮); Dong, Ai-Jun |
| 作者单位 | 1.Instituto de Astrofísica de La Plata (CCT La plata - CONICET/UNLP), Argentina 2.Department of Physics, Yunnan Normal University, Kunming, 650500, China; 3.Yunnan Observatories, Chinese Academy of Sciences (CAS), Kunming, 650011, China; 4.Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University, Guiyang, 550001, China; 5.School of Physics and Electronic Science, Guizhou Normal University, Guiyang 550001, China; |
| 推荐引用方式 GB/T 7714 | Sun, Qi-Bin,Qian SB,Dong, Ai-Jun,et al. Study on the variation of orbital period, quasi-periodic oscillations and negative superhumps in V729 Sgr[J]. NEW ASTRONOMY,2022,93. |
| APA | Sun, Qi-Bin.,Qian SB.,Dong, Ai-Jun.,Zhi, Qi-Jun.,Han ZT.,...&E, Fernández Lajús,.(2022).Study on the variation of orbital period, quasi-periodic oscillations and negative superhumps in V729 Sgr.NEW ASTRONOMY,93. |
| MLA | Sun, Qi-Bin,et al."Study on the variation of orbital period, quasi-periodic oscillations and negative superhumps in V729 Sgr".NEW ASTRONOMY 93(2022). |
入库方式： OAI收割
来源：云南天文台
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