论文标题
热木星WASP-43B，WASP-103B和TRES-3B的短光学波长的几何反照率
Geometric albedos at short optical wavelengths for the hot Jupiters WASP-43b, WASP-103b, and TrES-3b
论文作者
论文摘要
最大，最近距离的系外行星将反射足够的星光，以在高到中度反照率的状态下实现其地面光度检测。我们介绍了三个最合适的系外行星靶标（WASP-43B，WASP-103B和TRES-3B）的次级eclipse光曲线的观察活动的结果。观察结果是用蓝色光学宽带过滤器中的仪表望远镜约翰逊B和约翰逊V进行的。我们在日食时期未检测到光度测光，并通过注射探测测试得出了最佳的日食深度。然后使用这些深度值来推断低几何反照率在零到0.18，在大多数情况下，不确定性为0.12或更高。这项工作说明了基于地面望远镜的潜力，即使在短的光学波长下，也可以提供所选系外行星的波长分辨反射特性，否则仅通过哈勃空间望远镜才能访问。
The largest and most close-in exoplanets would reflect enough star light to enable its ground-based photometric detection under the condition of a high to moderate albedo. We present the results of an observing campaign of secondary eclipse light curves of three of the most suitable exoplanet targets, WASP-43b, WASP-103b, and TrES-3b. The observations were conducted with meter-sized telescopes in the blue optical broadband filters Johnson B and Johnson V. We do not detect a photometric dimming at the moment of the eclipse, and derive a best-fit eclipse depth by an injection-recovery test. These depth values are then used to infer low geometric albedos ranging from zero to 0.18 with an uncertainty of 0.12 or better in most cases. This work illustrates the potential of ground-based telescopes to provide wavelength-resolved reflection properties of selected exoplanets even at short optical wavelengths, which otherwise are only accessible by the Hubble Space Telescope.
