Nine New Cataclysmic Variable Stars with Negative Superhumps

doi:10.3847/1538-4357/ad0f1c

YNAO OpenIR > 双星与变星研究组

	Nine New Cataclysmic Variable Stars with Negative Superhumps
	Sun QB(孙起斌)1,2,3,4,5 ; Qian SB(钱声帮)1,2,3,4,5 ; Zhu LY(朱俐颖)1,3,4,5 ; Liao WP(廖文萍)1,3,4,5 ; Zhao EG(赵二刚)1,3,4 ; Li FX(李福兴)1,3,4 ; Shi XD(施相东)1,3,4 ; Li MY(李敏榆)1,3,4,5
发表期刊	ASTROPHYSICAL JOURNAL
	2024-02-01
卷号	962 期号:2
DOI	10.3847/1538-4357/ad0f1c
产权排序	第1完成单位
收录类别	SCI
摘要	Negative superhumps (NSHs) are signals a few percent shorter than the orbital period of a binary star and are considered to originate from the reverse precession of the tilted disk. Based on TESS photometry, we find nine new cataclysmic variable stars with NSHs. Three (ASAS J1420, TZ Per, and V392 Hya) of these stars similar to AH Her still have NSHs during dwarf nova outbursts, and the NSH amplitude varies with the outburst. The variation in the radius of the accretion disk partially explains this phenomenon. However, it does not explain the rebound of the NSH amplitude after the peak of the outburst and the fact that the NSH amplitude of the quiescence is sometimes not the largest, and it is necessary to include the disk instability model (DIM) and add other ingredients. Therefore, we suggest that the variation of NSH amplitude with outburst can be an important basis for studying the origin of NSHs and improving the DIM. The six (ASASSN-V J1137, ASASSN-V J0611, 2MASS J0715, LAMOST J0925, ASASSN-17qj, and ZTF 18acakuxo) remaining stars have been poorly studied, and for the first time we determine their orbital periods, NSHs, and superorbital signal (SOR) periods. The NSH periods and amplitudes of ASASSN-V J1137 and ASASSN-17qj vary with the SOR, and based on the comparison of the observations with the theory, we suggest that a single change in tilted disk angle does not explain the observations of the SOR and that other ingredients need to be considered as well.
资助项目	National Natural Science Foundation of China[11933008]; National Natural Science Foundation of China[12103084]; National Natural Science Foundation of China[12303040]; Basic research project of Yunnan Province[202301AT070352]
项目资助者	National Natural Science Foundation of China[11933008, 12103084, 12303040] ; Basic research project of Yunnan Province[202301AT070352]
语种	英语
学科领域	天文学
文章类型	Article
出版者	IOP Publishing Ltd
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN	0004-637X
URL	查看原文
WOS记录号	WOS:001160828000001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	QUASI-PERIODIC OSCILLATIONS ; X-RAY BINARY ; TILTED DISKS ; ACCRETION DISCS ; RADIAL-VELOCITY ; LIGHT CURVES ; DWARF NOVAE ; KIC 9406652 ; V344 LYRAE ; OUTBURSTS
引用统计	被引频次：1[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/114a53/26460
专题	双星与变星研究组中国科学院天体结构与演化重点实验室
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; [email protected]; 2.Department of Astronomy, Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, People's Republic of China [email protected]; 3.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; 4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of China; 5.University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, Beijing, People's Republic of 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. Nine New Cataclysmic Variable Stars with Negative Superhumps[J]. ASTROPHYSICAL JOURNAL,2024,962(2).
APA	孙起斌.,钱声帮.,朱俐颖.,廖文萍.,赵二刚.,...&李敏榆.(2024).Nine New Cataclysmic Variable Stars with Negative Superhumps.ASTROPHYSICAL JOURNAL,962(2).
MLA	孙起斌,et al."Nine New Cataclysmic Variable Stars with Negative Superhumps".ASTROPHYSICAL JOURNAL 962.2(2024).

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