Investigation of Superhumps in SU UMa-type Dwarf Novae Based on the Observations of TESS
文献类型:期刊论文
作者 | Liu W(刘伟)1,2,3,4; Qian SB(钱声帮)1,2,3,4 |
刊名 | ASTROPHYSICAL JOURNAL |
出版日期 | 2023-09-01 |
卷号 | 954期号:2 |
ISSN号 | 0004-637X |
DOI | 10.3847/1538-4357/acebdf |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | We report a superhumps analysis of seven SU UMa-type dwarf novae based on observations made by the Transiting Exoplanet Survey Satellite (TESS). Superhumps are seen during the superoutbursts of SU UMa-type dwarf novae. The monthlong data sets of TESS are well suited for studying the variations of superhumps. We selected seven non-eclipsing SU UMa-type dwarf novae with superhumps in which TESS light curves are available and have not yet been studied. The A, B, and C stages of superhumps in superoutbursts were determined by the O - C method. The results indicate that not all complete superoutbursts show three obvious stages, such as DT Oct and the second superoutburst of J1730+6247. We calculated the superhump period for each stage and the mean period for all superoutbursts. Taking the stage A superhump method, the mass ratio (M2/M1) was estimated. According to the results, the seven stars are pre-bounce systems with mass ratios ranging from 0.1 to 0.2. By combining the orbital periods and the mean superhump periods, the precession periods were calculated. The results show that the precession periods of the seven SU UMa stars are about 2 days. |
学科主题 | 天文学 ; 恒星与银河系 ; 恒星形成与演化 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
WOS关键词 | VARIABLES EXPERIMENT CURVE ; CATACLYSMIC VARIABLES ; PERIOD VARIATIONS ; ORBITAL PERIODS ; SPECTRAL-ANALYSIS ; EVOLUTION ; MODEL ; SUPEROUTBURST ; SPECTROSCOPY ; POPULATION |
资助项目 | National Natural Science Foundation of China[11933008] ; National Natural Science Foundation of China[12103084] ; the basic research project of Yunnan Province[202301AT070352] ; Natural Science Foundation of Anhui Province[2208085QA23] ; Natural Science Foundation of Anhui Province ; NASA Science Mission Directorate |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
WOS记录号 | WOS:001056062000001 |
资助机构 | National Natural Science Foundation of China[11933008,12103084] ; the basic research project of Yunnan Province[202301AT070352] ; Natural Science Foundation of Anhui Province[2208085QA23] ; Natural Science Foundation of Anhui Province ; NASA Science Mission Directorate |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/26188] |
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 |
通讯作者 | Qian SB(钱声帮) |
作者单位 | 1.University of Chinese Academy of Sciences, No.1 Yanqihu East Road, Huairou District, Beijing 101408, People's Republic of China; 2.Yunnan Observatories, Chinese Academy of Sciences, PO Box 110, Kunming 650216, People's Republic of China; qsb@ynao.ac.cn; 3.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, PO Box 110, Kunming 650216, People's Republic of China 4.Department of Astronomy, Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, People's Republic of China; |
推荐引用方式 GB/T 7714 | Liu W,Qian SB. Investigation of Superhumps in SU UMa-type Dwarf Novae Based on the Observations of TESS[J]. ASTROPHYSICAL JOURNAL,2023,954(2). |
APA | Liu W,&Qian SB.(2023).Investigation of Superhumps in SU UMa-type Dwarf Novae Based on the Observations of TESS.ASTROPHYSICAL JOURNAL,954(2). |
MLA | Liu W,et al."Investigation of Superhumps in SU UMa-type Dwarf Novae Based on the Observations of TESS".ASTROPHYSICAL JOURNAL 954.2(2023). |
入库方式: OAI收割
来源:云南天文台
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