Observations and Studies on the Transiting Systems HAT-P-36, XO-2 and WASP-76
文献类型：期刊论文
| 作者 | Wang WL(王威龙)1,2 ; Gu SH(顾盛宏)1,2,3; Wang XB(王晓彬)1,2,3; Sun LL(孙磊磊)1,3,4; Lee, Byeong-Cheol5,6; Kwok, Chi-Tai7; Hui, Ho-Keung7; Dou, Jiangpei8,9; Xiang Y(项越)1,3,4; Cao DT(曹东涛)1,3,4
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| 刊名 | ASTRONOMICAL JOURNAL
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| 出版日期 | 2025-06-02 |
| 卷号 | 169期号:6 |
| ISSN号 | 0004-6256 |
| DOI | 10.3847/1538-3881/add1de |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | We conducted photometric observations for transit events of three exoplanetary systems HAT-P-36, XO-2 and WASP-76 using the 1 m and 2.4 m telescopes at Yunnan Observatories and the 0.85 m telescope at National Astronomical Observatories of China. By combining the photometric data from the TESS mission, we have performed a detailed analysis for the obtained transit light curves using the Markov chain Monte Carlo technique, and obtained precise transit midtimes for the three systems. Based on our new measurements and other available transit mid-times, we have determined more accurate orbital periods for these systems. From the analysis, we find that all of these planetary systems exhibit certain transit-timing variations (TTVs). The TTV patterns are simulated by using the constant period model, orbital decay model and apsidal precession model, but we do not obtain reasonable models to account for the TTVs. Furthermore, to assess the presence of additional planets in these systems, we have constrained the masses of perturbing planets using the root mean square (rms) values of the observed TTVs and the rms values of radial velocity residuals. The results demonstrate that, under the condition of mean motion resonances, these systems may harbor perturbing planets with masses from a few tenths to more than one hundred Earth mass. |
| 学科主题 | 天文学 ; 天体物理学 ; 实测天体物理学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| WOS关键词 | EXOPLANET HOST STARS ; HOT JUPITERS ; TIMING VARIATIONS ; ORBITAL DECAY ; FOLLOW-UP ; PLANETS ; MULTIPLICITY ; MASS ; PARAMETERS ; STELLAR |
| 资助项目 | MOST divided by National Natural Science Foundation of China (NSFC); Chinese Academy of Sciences; People's Government of Yunnan Province[U1531121]; People's Government of Yunnan Province[U2031210]; People's Government of Yunnan Province[10873031]; People's Government of Yunnan Province[11473066]; People's Government of Yunnan Province[11827804]; People's Government of Yunnan Province[12003063]; National Natural Science Foundation of China[202305AS350009]; Yunnan Fundamental Research Project; Yunnan Revitalization Talent Support Program (Young Talent Project)[202302AN360001]; International Centre of Supernovae, Yunnan Key Laboratory[CMS-CSST-201906]; China Manned Space Project[CMS-CSST-2025-A18]; China Manned Space Program; NASA Explorer Program |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001500576700001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | MOST divided by National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences ; People's Government of Yunnan Province[U1531121, U2031210, 10873031, 11473066, 11827804, 12003063] ; National Natural Science Foundation of China[202305AS350009] ; Yunnan Fundamental Research Project ; Yunnan Revitalization Talent Support Program (Young Talent Project)[202302AN360001] ; International Centre of Supernovae, Yunnan Key Laboratory[CMS-CSST-201906] ; China Manned Space Project[CMS-CSST-2025-A18] ; China Manned Space Program ; NASA Explorer Program |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28335]  |
| 专题 | 星系类星体研究组 云南天文台_系外行星研究组 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 | Wang WL(王威龙) |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; wangxb@ynao.ac.cn; 2.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China; 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; 4.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, People's Republic of China; 5.Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Youseong-gu, Daejeon 34055, Republic of Korea; 6.Korea University of Science and Technology, Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea; 7.Ho Koon Nature Education cum Astronomical Centre, Sik Sik Yuen, Hong Kong, People's Republic of China; 8.National Astronomical Observatories/Nanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing 210042, People's Republic of China; 9.Key Laboratory of Astronomical Optics & Technology, Nanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing 210042, People's Republic of China |
| 推荐引用方式 GB/T 7714 | Wang WL,Gu SH,Wang XB,et al. Observations and Studies on the Transiting Systems HAT-P-36, XO-2 and WASP-76[J]. ASTRONOMICAL JOURNAL,2025,169(6). |
| APA | 王威龙.,顾盛宏.,王晓彬.,孙磊磊.,Lee, Byeong-Cheol.,...&徐甫坤.(2025).Observations and Studies on the Transiting Systems HAT-P-36, XO-2 and WASP-76.ASTRONOMICAL JOURNAL,169(6). |
| MLA | 王威龙,et al."Observations and Studies on the Transiting Systems HAT-P-36, XO-2 and WASP-76".ASTRONOMICAL JOURNAL 169.6(2025). |
入库方式： OAI收割
来源：云南天文台
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