USING THE ROSSITER-McLAUGHLIN EFFECT TO OBSERVE THE TRANSMISSION SPECTRUM OF EARTH'S ATMOSPHERE
文献类型：期刊论文
| 作者 | Yan, F.1,2,3 ; Fosbury, R. A. E.3; Petr-Gotzens, M. G.3; Palle, E.4,5; Zhao, G.1
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
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| 出版日期 | 2015-06-20 |
| 卷号 | 806期号:2 |
| 关键词 | Earth eclipses planets and satellites: atmospheres stars: rotation techniques: radial velocities |
| 英文摘要 | Due to stellar rotation, the observed radial velocity of a star varies during the transit of a planet across its surface, a phenomenon known as the Rossiter-McLaughlin (RM) effect. The amplitude of the RM effect is related to the radius of the planet which, because of differential absorption in the planetary atmosphere, depends on wavelength. Therefore, the wavelength-dependent RM effect can be used to probe the planetary atmosphere. We measure for the first time the RM effect of the Earth transiting the Sun using a lunar eclipse observed with the ESO High Accuracy Radial velocity Planet Searcher spectrograph. We analyze the observed RM effect at different wavelengths to obtain the transmission spectrum of the Earth's atmosphere after the correction of the solar limb-darkening and the convective blueshift. The ozone Chappuis band absorption as well as the Rayleigh scattering features are clearly detectable with this technique. Our observation demonstrates that the RM effect can be an effective technique for exoplanet atmosphere characterization. Its particular asset is that photometric reference stars are not required, circumventing the principal challenge for transmission spectroscopy studies of exoplanet atmospheres using large ground-based telescopes. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000356772700002 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5674]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.European So Observ, D-85748 Garching, Germany 4.Inst Astrofis Canarias, E-38205 Tenerife, Spain 5.Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain |
| 推荐引用方式 GB/T 7714 | Yan, F.,Fosbury, R. A. E.,Petr-Gotzens, M. G.,et al. USING THE ROSSITER-McLAUGHLIN EFFECT TO OBSERVE THE TRANSMISSION SPECTRUM OF EARTH'S ATMOSPHERE[J]. ASTROPHYSICAL JOURNAL LETTERS,2015,806(2). |
| APA | Yan, F.,Fosbury, R. A. E.,Petr-Gotzens, M. G.,Palle, E.,&Zhao, G..(2015).USING THE ROSSITER-McLAUGHLIN EFFECT TO OBSERVE THE TRANSMISSION SPECTRUM OF EARTH'S ATMOSPHERE.ASTROPHYSICAL JOURNAL LETTERS,806(2). |
| MLA | Yan, F.,et al."USING THE ROSSITER-McLAUGHLIN EFFECT TO OBSERVE THE TRANSMISSION SPECTRUM OF EARTH'S ATMOSPHERE".ASTROPHYSICAL JOURNAL LETTERS 806.2(2015). |
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来源：国家天文台
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