First discovery of quasi-periodic oscillations in the dwarf nova HS 2325+8205 based on TESS photometry

doi:10.1093/mnras/stac3272

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	First discovery of quasi-periodic oscillations in the dwarf nova HS 2325+8205 based on TESS photometry
	Sun QB(孙起斌)1 ; Qian SB(钱声帮)1,2 ; Zhu LY(朱俐颖)1 ; Dong, Ai-Jun 2; Zhi, Qi-Jun 2; Liao WP(廖文萍)1 ; Zhao EG(赵二刚)1 ; Han ZT(韩忠涛)1 ; Liu W(刘伟)1 ; Zang L(臧蕾)1 ; Li FX(李福兴)1 ; Shi XD(施相东)1
发表期刊	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2022-11-30
卷号	518 期号:3 页码:3901-3907
DOI	10.1093/mnras/stac3272
产权排序	第1完成单位
收录类别	SCI ; EI
关键词	techniques: photometric stars: dwarf novae stars: individual: HS 2325+8205 novae cataclysmic variables
摘要	HS 2325+8205 is a long-period eclipsing dwarf nova with an orbital period above the period gap (P-orb > 3h) 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 theTransiting 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 similar to 2160s 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.
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]
项目资助者	National Natural Science Foundation of China[11933008, U1831120, U1731238]
语种	英语
学科领域	天文学 ; 恒星与银河系 ; 恒星形成与演化
文章类型	Article
出版者	OXFORD UNIV PRESS
出版地	GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN	0035-8711
URL	查看原文
WOS记录号	WOS:001051195600024
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	CATACLYSMIC BINARIES ; ORBITAL PERIOD ; RAPID OSCILLATIONS ; SUPERHUMPS ; VARIABLES ; EVOLUTION ; MODEL
EI入藏号	20232114119254
EI主题词	Photometry
EI分类号	657.2 Extraterrestrial Physics and Stellar Phenomena - 921.3 Mathematical Transformations - 921.6 Numerical Methods - 941.4 Optical Variables Measurements
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/26035
专题	双星与变星研究组
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences (CAS), PO Box 110, Kunming, 650011, China; 2.School of Physics and Electronic Science, Guizhou Normal University, Guiyang, 550001, China
第一作者单位	中国科学院云南天文台
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,2022,518(3):3901-3907.
APA	Sun QB.,Qian SB.,Zhu LY.,Dong, Ai-Jun.,Zhi, Qi-Jun.,...&Shi XD.(2022).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(2022):3901-3907.

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