GROUND-BASED DETECTIONS OF THERMAL EMISSION FROM THE DENSE HOT JUPITER WASP-43b IN THE H AND K-s BANDS
文献类型：期刊论文
| 作者 | Wang, W.1; van Boekel, R.2; Madhusudhan, N.3,4; Chen, G.5 ; Zhao, G.1; Henning, Th.2
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2013-06-10 |
| 卷号 | 770期号:1 |
| 关键词 | planetary systems stars: individual (WASP-43) techniques: photometric |
| 英文摘要 | We report new detections of thermal emission from the transiting hot Jupiter WASP-43b in the H and K-s bands as observed at secondary eclipses. The observations were made with the WIRCam instrument on the Canada-France-Hawaii Telescope. We obtained a secondary eclipse depth of 0.103(-0.017)(+0.017)% and 0.194(-0.029)(+0.029)% in the H and K-s bands, respectively. The K-s-band depth is consistent with the previous measurement in the narrow band centered at 2.09 mu m by Gillon et al. Our eclipse depths in both bands are consistent with a blackbody spectrum with a temperature of similar to 1850 K, slightly higher than the dayside equilibrium temperature without day-night energy redistribution. Based on theoretical models of the dayside atmosphere of WASP-43b, our data constrain the day-night energy redistribution in the planet to be less than or similar to 15%-25%, depending on the metal content in the atmosphere. Combined with energy balance arguments, our data suggest that a strong temperature inversion is unlikely in the dayside atmosphere of WASP-43b. However, a weak inversion cannot be strictly ruled out at the current time. Future observations are required to place detailed constraints on the chemical composition of the atmosphere. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000319986400070 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6011]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China 2.Max Planck Inst Astron, D-69117 Heidelberg, Germany 3.Yale Univ, Dept Phys, New Haven, CT 06511 USA 4.Yale Univ, Dept Astron, New Haven, CT 06511 USA 5.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, W.,van Boekel, R.,Madhusudhan, N.,et al. GROUND-BASED DETECTIONS OF THERMAL EMISSION FROM THE DENSE HOT JUPITER WASP-43b IN THE H AND K-s BANDS[J]. ASTROPHYSICAL JOURNAL,2013,770(1). |
| APA | Wang, W.,van Boekel, R.,Madhusudhan, N.,Chen, G.,Zhao, G.,&Henning, Th..(2013).GROUND-BASED DETECTIONS OF THERMAL EMISSION FROM THE DENSE HOT JUPITER WASP-43b IN THE H AND K-s BANDS.ASTROPHYSICAL JOURNAL,770(1). |
| MLA | Wang, W.,et al."GROUND-BASED DETECTIONS OF THERMAL EMISSION FROM THE DENSE HOT JUPITER WASP-43b IN THE H AND K-s BANDS".ASTROPHYSICAL JOURNAL 770.1(2013). |
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来源：国家天文台
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