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A Comprehensive K2 and Ground-based Study of CRTS J035905.9+175034, an Eclipsing SU UMa System with a Large Mass Ratio

文献类型：期刊论文

作者Littlefield, Colin1; Garnavich, Peter1; Kennedy, Mark2; Szkody, Paula3; Dai ZB(戴智斌)4,5,6
刊名ASTRONOMICAL JOURNAL
出版日期2018-06-01
卷号155期号:6页码:13
关键词accretion, accretion disks novae cataclysmic variables stars: individual (CRTS J035905.9+175034)
ISSN号0004-6256
DOI10.3847/1538-3881/aabcd1
产权排序第4完成单位
文献子类Article
英文摘要CRTS J035905.9+ 175034 is the first eclipsing SU. UMa system for which a superoutburst has been observed by Kepler in the short-cadence mode. The light curve contains one superoutburst, eight normal outbursts (including a precursor to the superoutburst), and several minioutbursts that are present before-but not after-the superoutburst. The superoutburst began with a precursor normal outburst, and shortly after the peak of the precursor, the system developed large-amplitude superhumps that achieved their maximum amplitude after just three superhump cycles. The period excess of the initial superhump period relative to the orbital period implies a mass ratio of 0.281. +/-. 0.015, placing it marginally above most theoretical predictions of the highest-possible mass ratio for superhump formation. In addition, our analysis of the variations in eclipse width and depth, as well as the hot spot amplitudes, generally provides substantiation of the thermal-tidal instability model. The K2 data, in conjunction with our ground-based time-resolved spectroscopy and photometry from 2014 to 2016, allows us to determine many of the fundamental parameters of this system.
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
WOS关键词DRIVEN ECCENTRIC INSTABILITIES ; SUPERHUMPS ; DWARF ; MODEL ; SIMULATIONS ; OUTBURSTS ; BINARIES
资助项目NSF[AST-1514737] ; CAS Light of West China Program and the Science Foundation of Yunnan Province[2016FB007]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000460103600006
出版者IOP PUBLISHING LTD
资助机构NSF[AST-1514737] ; CAS Light of West China Program and the Science Foundation of Yunnan Province[2016FB007]
源URL[http://ir.ynao.ac.cn/handle/114a53/18246]  
专题云南天文台_双星与变星研究组
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
2.Department of Physics, University College Cork, Cork, Ireland
3.Department of Astronomy, University of Washington, Seattle, WA 98195, USA
4.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, People's Republic of China
5.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, People’s Republic of China
6.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, People’s Republic of China
推荐引用方式
GB/T 7714		 Littlefield, Colin,Garnavich, Peter,Kennedy, Mark,et al. A Comprehensive K2 and Ground-based Study of CRTS J035905.9+175034, an Eclipsing SU UMa System with a Large Mass Ratio[J]. ASTRONOMICAL JOURNAL,2018,155(6):13.
APA Littlefield, Colin,Garnavich, Peter,Kennedy, Mark,Szkody, Paula,&Dai ZB.(2018).A Comprehensive K2 and Ground-based Study of CRTS J035905.9+175034, an Eclipsing SU UMa System with a Large Mass Ratio.ASTRONOMICAL JOURNAL,155(6),13.
MLA Littlefield, Colin,et al."A Comprehensive K2 and Ground-based Study of CRTS J035905.9+175034, an Eclipsing SU UMa System with a Large Mass Ratio".ASTRONOMICAL JOURNAL 155.6(2018):13.

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来源：云南天文台

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