论文标题
Ares III：用HST WFC3揭示Kelt-7 B的两个面孔
ARES III: Unveiling the Two Faces of KELT-7 b with HST WFC3
论文作者
论文摘要
我们使用Hubble Space望远镜（HST）的传输和发射光谱对热的Jupiter Kelt-7b进行了分析，均用宽场摄像头3（WFC3）拍摄。我们的研究发现了丰富的传播光谱，该光谱与无云的气氛一致，并表明存在H2O和H-。相比之下，提取的发射光谱不包含强大的吸收特征，尽管它与简单的黑体不一致，但可以通过变化的温度压力曲线，碰撞诱导的吸收（CIA）和H-来解释。 Kelt-7 B还与其他空间仪器进行了研究，我们探讨了引入这些其他数据集的效果。需要对哈勃或下一代空间望远镜进行进一步的观察，以确认传输中的光学不透明度源，并在发射中散布分子特征。
We present the analysis of the hot-Jupiter KELT-7b using transmission and emission spectroscopy from the Hubble Space Telescope (HST), both taken with the Wide Field Camera 3 (WFC3). Our study uncovers a rich transmission spectrum which is consistent with a cloud-free atmosphere and suggests the presence of H2O and H-. In contrast, the extracted emission spectrum does not contain strong absorption features and, although it is not consistent with a simple blackbody, it can be explained by a varying temperature-pressure profile, collision induced absorption (CIA) and H-. KELT-7 b had also been studied with other space-based instruments and we explore the effects of introducing these additional datasets. Further observations with Hubble, or the next generation of space-based telescopes, are needed to allow for the optical opacity source in transmission to be confirmed and for molecular features to be disentangled in emission.
