论文标题
对70个酷巨人系外行星和新候选人Kepler-1708 B-I的外观调查
An Exomoon Survey of 70 Cool Giant Exoplanets and the New Candidate Kepler-1708 b-i
论文作者
论文摘要
在我们理解极性行星系统的努力中，外事物代表了一个至关重要的缺失拼图。为了解决这一缺陷，我们在这里描述了Kepler发现的70个酷，巨型过境系外行星候选者的外观调查。我们仅确定一个表现出一个像月亮信号的信号，该信号通过一系列审查测试：开普勒1708 b。我们表明，开普勒1708 B是统计验证的木星大小的行星，绕着〜1.6au绕着太阳般的静态恒星绕。 Exomoon候选者Kepler-1708 B-I的信号是4.8个sigma效应，并且在不同的仪器登出方法中持续存在，通过注射重新发现具有1％的假阳性概率。 Kepler-1708 B-I为〜2.6 Earth Radii，位于〜1.6au木星大小的宿主的大约12个行星半径的共面轨道中。未来的观察对于验证或拒绝候选人是必要的。
Exomoons represent a crucial missing puzzle piece in our efforts to understand extrasolar planetary systems. To address this deficiency, we here describe an exomoon survey of 70 cool, giant transiting exoplanet candidates found by Kepler. We identify only one which exhibits a moon-like signal that passes a battery of vetting tests: Kepler-1708 b. We show that Kepler-1708 b is a statistically validated Jupiter-sized planet orbiting a Sun-like quiescent star at ~1.6AU. The signal of the exomoon candidate, Kepler-1708 b-i, is a 4.8-sigma effect and is persistent across different instrumental detrending methods, with a 1% false-positive probability via injection-recovery. Kepler-1708 b-i is ~2.6 Earth radii and is located in an approximately coplanar orbit at ~12 planetary radii from its ~1.6AU Jupiter-sized host. Future observations will be necessary to validate or reject the candidate.
