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DOI | 10.1126/science.aah4668 |
HAT-P-26b: A Neptune-mass exoplanet with a well-constrained heavy element abundance | |
Wakeford, Hannah R.1; Sing, David K.2; Kataria, Tiffany3; Deming, Drake4; Nikolov, Nikolay2; Lopez, Eric D.1,5; Tremblin, Pascal6; Amundsen, David S.7,8; Lewis, Nikole K.9; Mandell, Avi M.1; Fortney, Jonathan J.10; Knutson, Heather11; Benneke, Bjorn11; Evans, Thomas M.2 | |
2017-05-12 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 356期号:6338页码:628-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England; Scotland; France |
英文摘要 | A correlation between giant-planet mass and atmospheric heavy elemental abundance was first noted in the past century from observations of planets in our own Solar System and has served as a cornerstone of planet-formation theory. Using data from the Hubble and Spitzer Space Telescopes from 0.5 to 5 micrometers, we conducted a detailed atmospheric study of the transiting Neptune-mass exoplanet HAT-P-26b. We detected prominent H2O absorption bands with a maximum base-to-peak amplitude of 525 parts per million in the transmission spectrum. Using the water abundance as a proxy for metallicity, we measured HAT-P-26b's atmospheric heavy element content (4.8(-4.0)(+21.5) times solar). This likely indicates that HAT-P-26b's atmosphere is primordial and obtained its gaseous envelope late in its disk lifetime, with little contamination from metal-rich planetesimals. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000400975200052 |
WOS关键词 | ATMOSPHERIC CIRCULATION ; TRANSMISSION SPECTRUM ; HOT ; WATER ; FRAMEWORK ; METHANE ; MODELS ; CLOUDS ; CLEAR |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/196024 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.NASA, Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA; 2.Univ Exeter, Astrophys Grp, Phys Bldg,Stocker Rd, Exeter EX4 4QL, Devon, England; 3.NASA, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA; 4.Univ Maryland, Dept Astron, College Pk, MD 20742 USA; 5.Univ Edinburgh, Inst Astron, Royal Observ Edinburgh, Blackford Hill, Edinburgh, Midlothian, Scotland; 6.Univ Paris Saclay, Univ Paris Sud, Maison Simulat,CEA, Univ Versailles St Quentin En Yvelines UVSQ,CNRS, F-91191 Gif Sur Yvette, France; 7.Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10025 USA; 8.NASA, Goddard Inst Space Studies, 2880 Broadway, New York, NY 10025 USA; 9.Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA; 10.Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA; 11.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA |
推荐引用方式 GB/T 7714 | Wakeford, Hannah R.,Sing, David K.,Kataria, Tiffany,et al. HAT-P-26b: A Neptune-mass exoplanet with a well-constrained heavy element abundance[J]. SCIENCE,2017,356(6338):628-+. |
APA | Wakeford, Hannah R..,Sing, David K..,Kataria, Tiffany.,Deming, Drake.,Nikolov, Nikolay.,...&Evans, Thomas M..(2017).HAT-P-26b: A Neptune-mass exoplanet with a well-constrained heavy element abundance.SCIENCE,356(6338),628-+. |
MLA | Wakeford, Hannah R.,et al."HAT-P-26b: A Neptune-mass exoplanet with a well-constrained heavy element abundance".SCIENCE 356.6338(2017):628-+. |
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