WASP-166b: a bloated super-Neptune transiting a V = 9 star
WASP-166b: a bloated super-Neptune transiting a V = 9 star
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DOI：
10.1093/mnras/stz1903
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发表时间：
2018-11
影响因子：
4.8
通讯作者：
C. Hellier;D. Anderson;A. Triaud;A. Triaud;F. Bouchy;A. Burdanov;A. Cameron;L. Delrez;D. Ehrenreich
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作者：
C. Hellier;D. Anderson;A. Triaud;A. Triaud;F. Bouchy;A. Burdanov;A. Cameron;L. Delrez;D. Ehrenreich
我们报告发现了WASP-166 b，这是一颗质量为0.1 MJup（1.9 MNep），半径为0.63 RJup的超级海王星行星。它以5.44-d的轨道穿过一颗V = 9.36，F9 V的星星，该轨道与恒星旋转轴对齐（天空投影的平行度角λ = 3 ± 5度）。径向速度测量值的变化可能是12-d恒星自转周期内磁场活动的结果。WASP-166 b似乎是“海王星沙漠”中的罕见物体。
We report the discovery of WASP-166b, a super-Neptune planet with a mass of 0.1 MJup (1.9 MNep) and a bloated radius of 0.63 RJup. It transits a V = 9.36, F9V star in a 5.44-d orbit that is aligned with the stellar rotation axis (sky-projected obliquity angle λ = 3 ± 5 deg). Variations in the radial-velocity measurements are likely the result of magnetic activity over a 12-d stellar rotation period. WASP-166b appears to be a rare object within the ‘Neptune desert’.