论文标题
K2和苔丝协同作用。 I. K2-114，K2-167，K2-237和K2-261的更新的胚层和参数
The K2 and TESS Synergy. I. Updated Ephemerides and Parameters for K2-114, K2-167, K2-237, and K2-261
论文作者
论文摘要
尽管过境外行星调查卫星（TESS）主要任务观察到了北部和南部的外世半球，通常避免了千载难逢的事件，并且在K2任务期间的开普勒太空望远镜只能在超支附近观察到许多K2领域，但许多K2领域都远离了Ecliptic Plane flate the Ecliptic Plane the Ecliptic firts firts fieldsectectsectects fields pifts pifts tess tess tessects pifts。使用来自K2和TESS的光度观测，结合了档案光谱观测，我们在全球建模了K2发现的四个已知的行星系统，这些系统是在主要TESS任务的第一年中观察到的。具体而言，我们为K2-114 B，K2-167 B，K2-237 B和K2-261 b提供更新的胚层和系统参数。这些是苔丝在第一年观察到的第一批K2行星，其中包括三个jovian尺寸的行星和一个轨道时期少于12天的亚旋转。在每种情况下，更新的埃弗米尔人都大大降低了未来运输时间预测的不确定性，这对于与James Webb太空望远镜和其他未来设施的计划观察非常有价值。苔丝的扩展任务预计将观察大约一半的K2字段，为对更多系统进行此类分析提供了机会。
Although the Transiting Exoplanet Survey Satellite (TESS) primary mission observed the northern and southern ecliptic hemispheres, generally avoiding the ecliptic, and the Kepler space telescope during the K2 mission could only observe near the ecliptic, many of the K2 fields extend far enough from the ecliptic plane that sections overlap with TESS fields. Using photometric observations from both K2 and TESS, combined with archival spectroscopic observations, we globally modeled four known planetary systems discovered by K2 that were observed in the first year of the primary TESS mission. Specifically, we provide updated ephemerides and system parameters for K2-114 b, K2-167 b, K2-237 b, and K2-261 b. These were some of the first K2 planets to be observed by TESS in the first year and include three Jovian sized planets and a sub-Neptune with orbital periods less than 12 days. In each case, the updated ephemeris significantly reduces the uncertainty in prediction of future times of transit, which is valuable for planning observations with the James Webb Space Telescope and other future facilities. The TESS extended mission is expected to observe about half of the K2 fields, providing the opportunity to perform this type of analysis on a larger number of systems.
