文章基本信息

标题：WASP-104b is Darker Than Charcoal
本地全文：下载
作者：T. Močnik ; C. Hellier ; J. Southworth 等
期刊名称：The Astronomical journal
印刷版ISSN：0004-6256
电子版ISSN：1538-3881
出版年度：2018
卷号：156
期号：2
页码：1-6
DOI：10.3847/1538-3881/aacb26
语种：English
出版社：American Institute of Physics
摘要：By analyzing the K2 short-cadence data from Campaign 14, we detect phase-curve modulation in the light curve of the hot-Jupiter host star WASP-104. The ellipsoidal modulation is detected with high significance and in agreement with theoretical expectations, while Doppler beaming and reflection modulations are detected tentatively. We show that the visual geometric albedo is lower than 0.03 at 95% confidence, making it one of the least-reflective planets found to date. The light curve also exhibits a rotational modulation, implying a stellar rotational period likely to be near 23 or 46 days. In addition, we refine the system parameters and place tight upper limits for transit timing and duration variations, starspot occultation events, and additional transiting planets.
关键词：planets and satellites: fundamental parameters;planets and satellites: individual (WASP-104b)