中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
TESS and ZTF Observations of an Eclipsing Z Cam-type Dwarf Nova IPHAS J051814.34+294113.2

文献类型:期刊论文

作者Han ZT(韩忠涛)1,2,3,4,5; Soonthornthum, B.2; Qian SB(钱声帮)1,3,4,5,6; Fang XH(方小慧)1,4,6; Wang QS(王琪善)1,4,6; Sarotsakulchai, T.2; Zhu LY(朱俐颖)1,4,5,6; Dong, A.-J.3; Zhi, Q.-J.3
刊名ASTRONOMICAL JOURNAL
出版日期2021-11
卷号162期号:5
ISSN号0004-6256
DOI10.3847/1538-3881/ac250b
产权排序第1完成单位
文献子类Article
英文摘要

We present an analysis of both Transiting Exoplanet Survey Satellite (TESS) and Zwicky Transient Facility (ZTF) observations of the eclipsing cataclysmic variable IPHAS J051814.34+294113.2 (IPHAS J0518). The TESS light curve shows numerous eclipses superimposed on two outbursts, and ZTF data show frequently outbursts recurring on average every 20.7 days and 12.9 days for long and short outbursts, respectively. This makes IPHAS J0518 to be identified as a possible Z Cam-type dwarf nova. Its quiescent magnitude is similar to 16.7 in the g band. The orbital period is determined to be 4.95 hr. By combining the observed orbital period with the semiempirical relations of Knigge et al., we estimate the donor mass as M (2) = 0.48M (circle dot). The eclipse phase measurements are used to constrain the binary parameters. The orbital inclination is limited in the range of 75.degrees 3 <= i < 81.degrees 7, and the mass ratio is derived as 0.33 < q <= 0.73. Furthermore, we analysis the accretion disk eclipse and find that the total disk eclipse is possible during quiescence, whereas during outburst the disk would be only partially obscured. This indicates that the disk will become larger as the outburst proceeds. We also study the changes of the eclipse depth against the out-of-eclipse flux in IPHAS J0518. The results show evidence of the expansion in the disk size and the variations in the radial-temperature gradient during outburst.

学科主题天文学 ; 恒星与银河系 ; 恒星天文学 ; 恒星形成与演化
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出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词CATACLYSMIC VARIABLES ; STATISTICAL-ANALYSIS ; PHYSICAL-PROPERTIES ; KEPLER OBSERVATIONS ; SPECTRAL-ANALYSIS ; WHITE-DWARF ; OUTBURST ; BINARY ; MODEL
资助项目National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11803083] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11933008] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U1831120] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U1731238] ; Key Science Foundation of Yunnan Province[2017FA001] ; West Light Foundation of The Chinese Academy of SciencesChinese Academy of Sciences[E0290601] ; Foundation of Science and Technology of Guizhou Province[(2016)4008] ; Foundation of Science and Technology of Guizhou Province[(2017)5726-37] ; Foundation of Guizhou Provincial Education Department[KY(2020)003] ; NASA Explorer ProgramNational Aeronautics & Space Administration (NASA) ; National Science FoundationNational Science Foundation (NSF)[AST-1440341] ; Caltech ; Weizmann Institute for Science ; Oskar Klein Center at Stockholm University ; University of Maryland ; University of WashingtonUniversity of Washington ; TANGO Consortium of Taiwan ; University of Wisconsin at Milwaukee ; Lawrence Berkeley National LaboratoriesUnited States Department of Energy (DOE) ; IPAC ; National Development and Reform Commission ; Deutsches Elektronen-Synchrotron and Humboldt University ; Los Alamos National LaboratoriesUnited States Department of Energy (DOE)Los Alamos National Laboratory
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000709107600001
出版者IOP Publishing Ltd
资助机构National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11803083, 11933008, U1831120, U1731238] ; Key Science Foundation of Yunnan Province[2017FA001] ; West Light Foundation of The Chinese Academy of SciencesChinese Academy of Sciences[E0290601] ; Foundation of Science and Technology of Guizhou Province[(2016)4008, (2017)5726-37] ; Foundation of Guizhou Provincial Education Department[KY(2020)003] ; NASA Explorer ProgramNational Aeronautics & Space Administration (NASA) ; National Science FoundationNational Science Foundation (NSF)[AST-1440341] ; Caltech ; Weizmann Institute for Science ; Oskar Klein Center at Stockholm University ; University of Maryland ; University of WashingtonUniversity of Washington ; TANGO Consortium of Taiwan ; University of Wisconsin at Milwaukee ; Lawrence Berkeley National LaboratoriesUnited States Department of Energy (DOE) ; IPAC ; National Development and Reform Commission ; Deutsches Elektronen-Synchrotron and Humboldt University ; Los Alamos National LaboratoriesUnited States Department of Energy (DOE)Los Alamos National Laboratory
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/24631]  
专题云南天文台_双星与变星研究组
通讯作者Han ZT(韩忠涛)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences (CAS), P.O. Box 110, 650216 Kunming, People's Republic of China; zhongtaohan@ynao.ac.cn;
2.National Astronomical Research Institute of Thailand, Ministry of Higher Education Science Research and Innovation, 260 Moo 4, T. Donkaew, A. Maerim, Chiangmai, 50180, Thailand;
3.Guizhou Provincial Key Laboratory of Radio Data Processing, School of Physics and Electronic Sciences, Guizhou Education University, Guiyang 550001, People's Republic of China;
4.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, 650216 Kunming, People's Republic of China;
5.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of China;
6.University of Chinese Academy of Sciences, Yuquan Road 19#, Sijingshang Block, 100049 Beijing, People's Republic of China
推荐引用方式
GB/T 7714
Han ZT,Soonthornthum, B.,Qian SB,et al. TESS and ZTF Observations of an Eclipsing Z Cam-type Dwarf Nova IPHAS J051814.34+294113.2[J]. ASTRONOMICAL JOURNAL,2021,162(5).
APA Han ZT.,Soonthornthum, B..,Qian SB.,Fang XH.,Wang QS.,...&Zhi, Q.-J..(2021).TESS and ZTF Observations of an Eclipsing Z Cam-type Dwarf Nova IPHAS J051814.34+294113.2.ASTRONOMICAL JOURNAL,162(5).
MLA Han ZT,et al."TESS and ZTF Observations of an Eclipsing Z Cam-type Dwarf Nova IPHAS J051814.34+294113.2".ASTRONOMICAL JOURNAL 162.5(2021).

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来源:云南天文台

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