论文标题
Ondr} ejov echelle光谱仪，基于地面的支撑设施，用于外行任务
Ondr}ejov echelle spectrograph, ground based support facility for exoplanet missions
论文作者
论文摘要
如果没有地面光谱随访，就不可能实现像开普勒和苔丝这样的空间外行驶过境调查的目标。特别是，候选人的第一步审查很容易需要数百个小时的望远镜时间 - 一个2-M类望远镜可以发挥关键作用的区域。在这里，我们描述了安装在2-M Perek望远镜上的OndD还梯形光谱仪（OES）的科学验证的结果。我们讨论了该仪器的性能，以及其适合研究空间过境调查的系外行星候选者的适用性。尽管位于欧洲平均观测地点，并且最初是为了研究可变恒星的研究，但OES可以被证明是苔丝和柏拉图时代外行星社区的重要工具 - 与几十万M/s的准确性达到了几十万M/s的精度，并以合理的采样和信号来源，以供应源至$ $ \ sim $ \ sim $ \ sim $ \ sim $ \ sim $ \ sim $ \ sim $ \ sim $ \ sim $ \ 13。通过长期监测标准星HD〜109358的长期监测，OES的稳定性证明了其对外球星候候选验证的有效性，使用三个K2候选者Epic 〜210925707，Epic〜206135267和Epic〜211993818，以显示它们是假阳性的检测。
Fulfilling the goals of space-based exoplanetary transit surveys, like Kepler and TESS, is impossible without ground-based spectroscopic follow-up. In particular, the first-step vetting of candidates could easily necessitate several hundreds of hours of telescope time -- an area where 2-m class telescopes can play a crucial role. Here, we describe the results from the science verification of the Ondřejov Echelle Spectrograph (OES) installed on the 2-m Perek telescope. We discuss the performance of the instrument as well as its suitability for the study of exoplanetary candidates from space-based transit surveys. In spite of being located at an average European observing site, and originally being conceived for the study of variable stars, OES can prove to be an important instrument for the exoplanetary community in the TESS and PLATO era -- reaching accuracies of a few tens of m/s with reasonable sampling and signal-to-noise for sources down to V$\sim$13. The stability of OES is demonstrated via long-term monitoring of the standard star HD~109358, while its validity for exoplanetary candidate verification is shown using three K2 candidates EPIC~210925707, EPIC~206135267 and EPIC~211993818, to reveal that they are false positive detections.
