WASP-190b: Tomographic Discovery of a Transiting Hot Jupiter
WASP-190b: Tomographic Discovery of a Transiting Hot Jupiter
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DOI：
10.3847/1538-3881/ab095a
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发表时间：
2018-11
期刊：
影响因子：
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通讯作者：
L. Y. Temple;C. Hellier;Y. Almleaky;D. Anderson;F. Bouchy;David J. A. Brown;A. Burdanov;A. Cameron-A.-C
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文献类型：
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作者：
L. Y. Temple;C. Hellier;Y. Almleaky;D. Anderson;F. Bouchy;David J. A. Brown;A. Burdanov;A. Cameron-A.-C
我们报告发现了WASP-190 b，这是一颗围绕一颗温和演化的F6 IV-V星星运行5.37天的系外行星，V = 11.7，= 6400 ± 100 K，M* = 1.35 ± 0.05 M，R* = 1.6 ± 0.1 R。这颗行星的半径为RP = 1.15 ± 0.09 RJup，质量为MP = 1.0 ± 0.1 MJup，是一颗轻度膨胀的热木星。这是第一个通过多普勒层析成像证实的热木星，轨道周期>5天。轨道与恒星自转也有轻微的偏差，使用多普勒层析成像测量的λ = 21° ± 6°。
We report the discovery of WASP-190b, an exoplanet on a 5.37 day orbit around a mildly evolved F6 IV-V star with V = 11.7, = 6400 ± 100 K, M* = 1.35 ± 0.05 M⊙, and R* = 1.6 ± 0.1 R⊙. The planet has a radius of RP = 1.15 ± 0.09 RJup and a mass of MP = 1.0 ± 0.1 MJup, making it a mildly inflated hot Jupiter. It is the first hot Jupiter confirmed via Doppler tomography with an orbital period of >5 days. The orbit is also marginally misaligned with respect to the stellar rotation, with λ = 21° ± 6° measured using Doppler tomography.