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Efficient identification of exoplanetary transit candidates from SuperWASP light curves
文献类型：期刊论文
| 作者 | Cameron, AC1; Wilson, DM2; West, RG3; Hebb, L1; Wang XB(王晓彬)1,4 ; Aigrain, S5; Bouchy, F6; Christian, DJ7; Clarkson, WI8; Enoch, B9
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2007-09-21 |
| 卷号 | 380期号:3页码:1230-1244 |
| 关键词 | methods : data analysis techniques : photometric planetary systems |
| ISSN号 | 0035-8711 |
| 产权排序 | 第四完成单位 |
| 通讯作者 | Cameron, AC (reprint author), Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland. |
| 英文摘要 | Transiting extrasolar planets constitute only a small fraction of the range of stellar systems found to display periodic, shallow dimmings in wide-field surveys employing small-aperture A camera arrays. Here we present an efficient selection strategy for follow-up observations, derived from analysis of the light curves of a sample of 67 SuperWASP targets that passed the selection tests we used in earlier papers, but which have subsequently been identified either as planet hosts or as astrophysical false positives. We determine the system parameters using Markov-chain Monte Carlo analysis of the SuperWASP light curves. We use a constrained optimization of X 2 combined with a Bayesian prior based on the main-sequence mass and radius expected from the Two Micron All Sky Survey J - H colour. The Bayesian nature of the analysis allows us to quantify both the departure of the host star from the main-sequence mass-radius relation and the probability that the companion radius is less than 1.5 Jupiter radii. When augmented by direct fight-curve analyses that detect binaries with unequal primary and secondary eclipses, and objects with aperture blends that are resolved by SuperWASP, we find that only 13 of the original 67 stars, including the three known planets in the sample, would qualify for follow-up. This suggests that planet discovery 'hit rates' better than one-in-five should be achievable. In addition, the stellar binaries that qualify are likely to have astrophysically interesting stellar or substellar secondaries. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | EXTRASOLAR PLANET CANDIDATES ; HYDROGEN-BURNING LIMIT ; GIANT PLANET ; HOT JUPITERS ; FOLLOW-UP ; STAR ; RADIUS ; WASP-1B ; PROJECT ; SELECTION |
| 收录类别 | SCI |
| 原文出处 | http://mnras.oxfordjournals.org/content/380/3/1230 |
| 语种 | 英语 |
| WOS记录号 | WOS:000249844900033 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6787]  |
| 专题 | 云南天文台_系外行星研究组 |
| 作者单位 | 1.School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS 2.Astrophysics Group, Keele University, Staffordshire ST5 5BG 3.Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH 4.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, China 5.School of Physics, University of Exeter, Stocker Road, Exeter EX4 4QL 6.Institut d'Astrophysique de Paris, CNRS (UMR 7095) – Université Pierre & Marie Curie, 98bis bvd Arago, 75014 Paris, France 7.ARC, Main Physics Building, School of Mathematics & Physics, Queen's University, University Road, Belfast BT7 1NN 8.STScI, 3700 San Martin Drive, Baltimore, MD 21218, USA 9.Department of Physics and Astronomy, The Open University, Milton Keynes MK7 6AA 10.Thüringer Landessternwarte Tautenburg, Karl-Schwarzschild-Observatorium, D-07778 Tautenburg, Germany |
| 推荐引用方式 GB/T 7714 | Cameron, AC,Wilson, DM,West, RG,et al. Efficient identification of exoplanetary transit candidates from SuperWASP light curves[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2007,380(3):1230-1244. |
| APA | Cameron, AC.,Wilson, DM.,West, RG.,Hebb, L.,Wang XB.,...&Wheatley, PJ.(2007).Efficient identification of exoplanetary transit candidates from SuperWASP light curves.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,380(3),1230-1244. |
| MLA | Cameron, AC,et al."Efficient identification of exoplanetary transit candidates from SuperWASP light curves".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 380.3(2007):1230-1244. |
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来源：云南天文台
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