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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
Littlefield, Colin1; Garnavich, Peter1; Kennedy, Mark2; Szkody, Paula3; Dai ZB(戴智斌)4,5,6
Source PublicationASTRONOMICAL JOURNAL
2018-06-01
Volume155Issue:6Pages:13
DOI10.3847/1538-3881/aabcd1
Contribution Rank第4完成单位
Indexed BySCI
Keywordaccretion, accretion disks novae cataclysmic variables stars: individual (CRTS J035905.9+175034)
AbstractCRTS 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.
Funding ProjectNSF[AST-1514737] ; CAS Light of West China Program and the Science Foundation of Yunnan Province[2016FB007]
Funding OrganizationNSF[AST-1514737] ; CAS Light of West China Program and the Science Foundation of Yunnan Province[2016FB007]
Language英语
Subject Area天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-6256
URL查看原文
WOS IDWOS:000460103600006
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordDRIVEN ECCENTRIC INSTABILITIES ; SUPERHUMPS ; DWARF ; MODEL ; SIMULATIONS ; OUTBURSTS ; BINARIES
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/18247
Collection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
Affiliation1.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
Recommended Citation
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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