Transiting Exoplanet Monitoring Project (TEMP). VI. The Homogeneous Refinement of System Parameters for 39 Transiting Hot Jupiters with 127 New Light Curves
文献类型：期刊论文
| 作者 | Wang,Xian-Yu4,5; Wang,Yong-Hao3; Wang,Songhu6; Wu,Zhen-Yu4,5; Rice,Malena7; Zhou,Xu4 ; Hinse,Tobias C.2,9; Liu,Hui-Gen8; Ma,Bo3; Peng,Xiyan4
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| 刊名 | The Astrophysical Journal Supplement Series
 |
| 出版日期 | 2021-07-01 |
| 卷号 | 255期号:1 |
| 关键词 | Exoplanet astronomy Exoplanet dynamics Exoplanet systems Exoplanets Hot Jupiters Planet hosting stars |
| ISSN号 | 0067-0049 |
| DOI | 10.3847/1538-4365/ac0835 |
| 英文摘要 | Abstract We present 127 new transit light curves for 39 hot Jupiter systems, obtained over the span of 5 yr by two ground-based telescopes. A homogeneous analysis of these newly collected light curves together with archived spectroscopic, photometric, and Doppler velocimetric data using EXOFASTv2 leads to a significant improvement in the physical and orbital parameters of each system. All of our stellar radii are constrained to accuracies of better than 3%. The planetary radii for 37 of our 39 targets are determined to accuracies of better than 5%. Compared to our results, the literature eccentricities are preferentially overestimated due to the Lucy–Sweeney bias. Our new photometric observations therefore allow for significant improvement in the orbital ephemerides of each system. Our correction of the future transit window amounts to a change exceeding 10 minutes for 10 targets at the time of James Webb Space Telescope's launch, including a 72 minutes change for WASP-56. The measured transit midtimes for both literature light curves and our new photometry show no significant deviations from the updated linear ephemerides, ruling out in each system the presence of companion planets with masses greater than 0.39–5.0 M⊕, 1.23–14.36 M⊕, 1.65–21.18 M⊕, and 0.69–6.75 M⊕ near the 1:2, 2:3, 3:2, and 2:1 resonances with the hot Jupiters, respectively, at a confidence level of ±1σ. The absence of resonant companion planets in the hot Jupiter systems is inconsistent with the conventional expectation from disk migration. |
| 语种 | 英语 |
| WOS记录号 | IOP:0067-0049-255-1-AC0835 |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/56808]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Wang,Xian-Yu |
| 作者单位 | 1.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, People's Republic of China 2.Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland 3.School of Physics and Astronomy, Sun Yat-Sen University, Zhuhai, 519082, People's Republic of China; wangyhao5@mail.sysu.edu.cn 4.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People's Republic of China; xianyu_wang@nao.cas.cn 5.University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China 6.Department of Astronomy, Indiana University, Bloomington, IN 47405, USA 7.Department of Astronomy, Yale University, New Haven, CT 06511, USA 8.School of Astronomy and Space Science and Key Laboratory of Modern Astronomy and Astrophysics in Ministry of Education, Nanjing University, Nanjing 210093, People's Republic of China 9.Chungnam National University, Department of Astronomy, Space Science & Geology, 34134 Daejeon, Republic of Korea |
| 推荐引用方式 GB/T 7714 | Wang,Xian-Yu,Wang,Yong-Hao,Wang,Songhu,et al. Transiting Exoplanet Monitoring Project (TEMP). VI. The Homogeneous Refinement of System Parameters for 39 Transiting Hot Jupiters with 127 New Light Curves[J]. The Astrophysical Journal Supplement Series,2021,255(1). |
| APA | Wang,Xian-Yu.,Wang,Yong-Hao.,Wang,Songhu.,Wu,Zhen-Yu.,Rice,Malena.,...&Laughlin,Gregory.(2021).Transiting Exoplanet Monitoring Project (TEMP). VI. The Homogeneous Refinement of System Parameters for 39 Transiting Hot Jupiters with 127 New Light Curves.The Astrophysical Journal Supplement Series,255(1). |
| MLA | Wang,Xian-Yu,et al."Transiting Exoplanet Monitoring Project (TEMP). VI. The Homogeneous Refinement of System Parameters for 39 Transiting Hot Jupiters with 127 New Light Curves".The Astrophysical Journal Supplement Series 255.1(2021). |
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