TT Arietis: Spectroscopy and photometry

doi:10.1086/339278

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	TT Arietis: Spectroscopy and photometry
	Wu, X 1; Li, ZY 1; Ding, YR 1; Zhang ZS(张周生)2 ; Li ZL(李自力)2 ; Wu, X (reprint author), Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China.
发表期刊	ASTROPHYSICAL JOURNAL
	2002-04
卷号	569 期号:1 页码:418-422
DOI	10.1086/339278
产权排序	第2完成单位
收录类别	SCI
关键词	Accretion Stars : Individual (Tt Arietis) Accretion Disks Novae Cataclysmic Variables
摘要	We report the photometry and spectroscopy of TT Arietis around the turn of the millennium, when the nova-like variable is in high state. A positive superhump since 1997 still exists. A more precise orbital period than before, 0:13755040+/-1.7x10(-7) days, is established. The intensity of the Balmer emission core is found to modulate at the superhump period rather than the orbital period and 180degrees out of phase with continuum. The intensity of Balmer absorption wings is approximately proportional to the continuum flux. The correlation between Balmer lines and continuum provides a new clue to the study of sources of continuum and emission lines. The mass ratio of the binary is found to be in the range of 0.19+/-0.04, which lends strong support to the proposition that superhumps arise from the inner Lindblad 3: 1 resonance in TT Ari, as in superoutbursts of SU UMa stars.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0004-637X
URL	查看原文
WOS记录号	WOS:000174876800035
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	LOW STATE ; BEHAVIOR ; SIMULATIONS ; SUPERHUMPS
引用统计	被引频次：29[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/4139
专题	其他
通讯作者	Wu, X (reprint author), Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China.
作者单位	1.Department of Astronomy, Nanjing University, Nanjing 210093, China 2.Yunnan Observatory, Kunming 650011, China
推荐引用方式 GB/T 7714	Wu, X,Li, ZY,Ding, YR,et al. TT Arietis: Spectroscopy and photometry[J]. ASTROPHYSICAL JOURNAL,2002,569(1):418-422.
APA	Wu, X,Li, ZY,Ding, YR,Zhang ZS,Li ZL,&Wu, X .(2002).TT Arietis: Spectroscopy and photometry.ASTROPHYSICAL JOURNAL,569(1),418-422.
MLA	Wu, X,et al."TT Arietis: Spectroscopy and photometry".ASTROPHYSICAL JOURNAL 569.1(2002):418-422.

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TT Arietis_ Spectros（301KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览请求全文