LRG-BEASTS III: ground-based transmission spectrum of the gas giant orbiting the cool dwarf WASP-80
LRG-BEASTS III: ground-based transmission spectrum of the gas giant orbiting the cool dwarf WASP-80
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DOI：
10.1093/mnras/stx2826
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发表时间：
2017-10
影响因子：
4.8
通讯作者：
J. Kirk;P. Wheatley;T. Louden;I. Skillen;G. King;J. McCormac;P. Irwin
中科院分区：
文献类型：
--
作者：
J. Kirk;P. Wheatley;T. Louden;I. Skillen;G. King;J. McCormac;P. Irwin
我们利用威廉·赫歇尔望远镜（WHT）上的ACAM仪器对围绕冷矮星WASP-80运行的热木星进行了地面透射光谱分析，这是利用透射光谱法进行低分辨率地面系外行星大气调查计划的一部分。这是使用低分辨率格栅光谱仪对热木星进行地面透射光谱调查的第三篇论文。我们观测了这颗行星的两次凌日，并构建了跨越4640 - 8840\，\AA波长范围的透射光谱。我们的透射光谱与之前声称在WASP-80b大气中检测到的钾不一致，相反，最符合雾霾的是。在100\，\AA的分辨率下，我们也没有看到钠吸收的证据。
We have performed ground-based transmission spectroscopy of the hot Jupiter orbiting the cool dwarf WASP-80 using the ACAM instrument on the William Herschel Telescope (WHT) as part of the Low Resolution Ground-Based Exoplanet Atmosphere Survey using Transmission Spectroscopy programme. This is the third paper of a ground-based transmission spectroscopy survey of hot Jupiters using low-resolution grism spectrographs. We observed two transits of the planet and have constructed transmission spectra spanning a wavelength range of 4640 -- 8840\,\AA. Our transmission spectrum is inconsistent with a previously claimed detection of potassium in WASP-80b's atmosphere, and is instead most consistent with a haze. We also do not see evidence for sodium absorption at a resolution of 100\,\AA.