论文标题
测量开普勒管道中的运输信号回收IV：DR25行星候选目录的完整性
Measuring Transit Signal Recovery in the Kepler Pipeline IV: Completeness of the DR25 Planet Candidate catalog
论文作者
论文摘要
在这项工作中，我们从经验上测量了用于创建最终开普勒阈值交叉事件（TCE； TCE等人，2016）和行星候选目录（Thompson等人2018）的检测效率，这是使用这些列表使用这些列表计算的必要成分。通过将模拟信号注入校准的像素数据并通过管道正常处理这些像素，我们将信号的检测概率定量，这是其信号强度和轨道周期的函数。此外，我们研究了检测效率对目标恒星参数及其在开普勒视野中的位置的依赖性。我们发现，开普勒管道的遗传末期版本返回到高总检测效率，平均在各种参数空间上，强信号的检测率为90-95％。我们发现检测效率对有助于信号和信号轨道周期的过渡次数的依赖性较弱，并且对恒星有效温度和相关噪声特性的依赖性更强。我们还发现检测效率对视场中位置的依赖性较弱。通过将开普勒恒星样品限制为具有良好性相关噪声特性的恒星，我们可以定义一组具有高检测效率的恒星，以进行未来的发生率计算。
In this work we empirically measure the detection efficiency of Kepler pipeline used to create the final Kepler Threshold Crossing Event (TCE; Twicken et al. 2016) and planet candidate catalogs (Thompson et al. 2018), a necessary ingredient for occurrence rate calculations using these lists. By injecting simulated signals into the calibrated pixel data and processing those pixels through the pipeline as normal, we quantify the detection probability of signals as a function of their signal strength and orbital period. In addition we investigate the dependence of the detection efficiency on parameters of the target stars and their location in the Kepler field of view. We find that the end-of-mission version of the Kepler pipeline returns to a high overall detection efficiency, averaging a 90-95% rate of detection for strong signals across a wide variety of parameter space. We find a weak dependence of the detection efficiency on the number of transits contributing to the signal and the orbital period of the signal, and a stronger dependence on the stellar effective temperature and correlated noise properties. We also find a weak dependence of the detection efficiency on the position within the field of view. By restricting the Kepler stellar sample to stars with well-behaved correlated noise properties, we can define a set of stars with high detection efficiency for future occurrence rate calculations.
