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Transiting Exoplanet Monitoring Project (TEMP). IV. Refined System Parameters, Transit Timing Variations, and Orbital Stability of the Transiting Planetary System HAT-P-25
Wang,Xian-Yu1; Wang,Songhu2; Hinse,Tobias C.3; Li,Kai1; Wang,Yong-Hao4,5; Laughlin,Gregory2; Liu,Hui-Gen6; Zhang,Hui6; Wu,Zhen-Yu4,5; Zhou,Xu4,5; Zhou,Ji-Lin6; Hu,Shao-Ming1; Wu,Dong-Hong6; Peng,Xi-Yan4,5; Chen,Yuan-Yuan7
2018-04-25
Source PublicationPublications of the Astronomical Society of the Pacific
ISSN0004-6280
Volume130Issue:988
AbstractAbstract We present eight new light curves of the transiting extra-solar planet HAT-P-25b obtained from 2013 to 2016 with three telescopes at two observatories. We use the new light curves, along with recent literature material, to estimate the physical and orbital parameters of the transiting planet. Specifically, we determine the mid-transit times (TC) and update the linear ephemeris, TC[0]?=?2456418.80996?±?0.00025 [BJDTDB] and P?=?3.65281572?±?0.00000095 days. We carry out a search for transit timing variations (TTVs), and find no significant TTV signal at the ΔT?=?80 s-level, placing a limit on the possible strength of planet–planet interactions (TTVG). In the course of our analysis, we calculate the upper mass-limits of the potential nearby perturbers. Near the 1:2, 2:1, and 3:1 resonances with HAT-P-25b, perturbers with masses greater than 0.5, 0.3, and 0.5 M⊕ respectively, can be excluded. Furthermore, based on the analysis of TTVs caused by light travel time effect (LTTE) we also eliminate the possibility that a long-period perturber exists with Mp?>?3000 MJ within a?=?11.2 au of the parent star.
Keywordplanets and satellites: fundamental parameters planets and satellites: individual (HAT-P-25b) stars: fundamental parameters stars: individual (HAT-P-25) techniques: photometric
DOI10.1088/1538-3873/aab93e
Language英语
WOS IDIOP:0004-6280-130-988-aab93e
PublisherThe Astronomical Society of the Pacific
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/23498
Collection中国科学院紫金山天文台
Affiliation1.Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai 264209, People’s Republic of China
2.Department of Astronomy, Yale University, New Haven, CT 06511, USA; song-hu.wang@yale.edu
3.Korea Astronomy and Space Science Institute, Daejeon 305-348, Republic of Korea
4.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China
5.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 101408, People’s Republic of China
6.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
7.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, People’s Republic of China
Recommended Citation
GB/T 7714
Wang,Xian-Yu,Wang,Songhu,Hinse,Tobias C.,et al. Transiting Exoplanet Monitoring Project (TEMP). IV. Refined System Parameters, Transit Timing Variations, and Orbital Stability of the Transiting Planetary System HAT-P-25[J]. Publications of the Astronomical Society of the Pacific,2018,130(988).
APA Wang,Xian-Yu.,Wang,Songhu.,Hinse,Tobias C..,Li,Kai.,Wang,Yong-Hao.,...&Chen,Yuan-Yuan.(2018).Transiting Exoplanet Monitoring Project (TEMP). IV. Refined System Parameters, Transit Timing Variations, and Orbital Stability of the Transiting Planetary System HAT-P-25.Publications of the Astronomical Society of the Pacific,130(988).
MLA Wang,Xian-Yu,et al."Transiting Exoplanet Monitoring Project (TEMP). IV. Refined System Parameters, Transit Timing Variations, and Orbital Stability of the Transiting Planetary System HAT-P-25".Publications of the Astronomical Society of the Pacific 130.988(2018).
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