Nine New Cataclysmic Variable Stars with Negative Superhumps

doi:10.3847/1538-4357/ad0f1c

	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
刊名	ASTROPHYSICAL JOURNAL
	2024-02-01
卷号	962 期号:2
ISSN号	0004-637X
DOI	10.3847/1538-4357/ad0f1c
产权排序	第1完成单位
文献子类	Article
英文摘要	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.
学科主题	天文学
URL标识	查看原文
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
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]
WOS关键词	QUASI-PERIODIC OSCILLATIONS ; X-RAY BINARY ; TILTED DISKS ; ACCRETION DISCS ; RADIAL-VELOCITY ; LIGHT CURVES ; DWARF NOVAE ; KIC 9406652 ; V344 LYRAE ; OUTBURSTS
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001160828000001
资助机构	National Natural Science Foundation of China[11933008, 12103084, 12303040] ; Basic research project of Yunnan Province[202301AT070352]
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/26460]
专题	云南天文台_双星与变星研究组
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; qsb@ynao.ac.cn; 2.Department of Astronomy, Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, People's Republic of China sunqibin@ynao.ac.cn; 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
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).