First discovery of quasi-periodic oscillations in the dwarf nova HS 2325+8205 based on TESS photometry
文献类型:期刊论文
作者 | Sun QB(孙起斌)2; Qian SB(钱声帮)1,2; Zhu LY(朱俐颖)2; Dong, Ai-Jun1; Zhi, Qi-Jun1; Liao WP(廖文萍)2; Zhao EG(赵二刚)2; Han ZT(韩忠涛)2; Liu W(刘伟)2; Zang L(臧蕾)2 |
刊名 | Monthly Notices of the Royal Astronomical Society |
出版日期 | 2023 |
卷号 | 518期号:3页码:3901-3907 |
ISSN号 | 0035-8711 |
DOI | 10.1093/mnras/stac3272 |
产权排序 | 第1完成单位 |
文献子类 | Journal article (JA) |
英文摘要 | HS 2325+8205 is a long-period eclipsing dwarf nova with an orbital period above the period gap (Porb > 3 h) and is reported to be a Z Cam-type dwarf nova. We study the light variation and the quasi-periodic oscillations (QPOs) of HS 2325+8205 based on the photometry of the Transiting Exoplanet Survey Satellite (TESS). Using a continuous wavelet transform, a Lomb–Scargle periodogram (LSP), and sine fitting methods, we find for the first time that there is a QPO of ∼2160 s in the long outburst top light curves of HS 2325+8205. Moreover, we find that the oscillation intensity of the QPOs of HS 2325+8205 is related to the orbital phase, and the intensity in orbital phases 0.5–0.9 is stronger than in orbital phases 0.1–0.5. Therefore, the relationship between the oscillation intensity of QPOs and the orbital phase may become a topic of research into the origin of QPOs. In addition, we use the LSP to correct the orbital period of HS 2325+8205 to 0.19433475(6) d. © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society. |
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 |
资助项目 | National Natural Science Foundation of China[11933008] ; National Natural Science Foundation of China[U1731238] ; National Natural Science Foundation of China[U1831120] |
语种 | 英语 |
出版者 | Oxford University Press |
资助机构 | National Natural Science Foundation of China[11933008, U1731238, U1831120] |
源URL | [http://ir.ynao.ac.cn/handle/114a53/26035] |
专题 | 云南天文台_双星与变星研究组 |
作者单位 | 1.School of Physics and Electronic Science, Guizhou Normal University, Guiyang, 550001, China 2.Yunnan Observatories, Chinese Academy of Sciences (CAS), PO Box 110, Kunming, 650011, China; |
推荐引用方式 GB/T 7714 | Sun QB,Qian SB,Zhu LY,et al. First discovery of quasi-periodic oscillations in the dwarf nova HS 2325+8205 based on TESS photometry[J]. Monthly Notices of the Royal Astronomical Society,2023,518(3):3901-3907. |
APA | Sun QB.,Qian SB.,Zhu LY.,Dong, Ai-Jun.,Zhi, Qi-Jun.,...&Shi XD.(2023).First discovery of quasi-periodic oscillations in the dwarf nova HS 2325+8205 based on TESS photometry.Monthly Notices of the Royal Astronomical Society,518(3),3901-3907. |
MLA | Sun QB,et al."First discovery of quasi-periodic oscillations in the dwarf nova HS 2325+8205 based on TESS photometry".Monthly Notices of the Royal Astronomical Society 518.3(2023):3901-3907. |
入库方式: OAI收割
来源:云南天文台
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