论文标题
K2 RR Lyrae星的自动化孔径光度法
Automated Extended Aperture Photometry for K2 RR Lyrae stars
论文作者
论文摘要
由于观察到的物理现象的时间尺度与数据中出现的仪器信号之间的相似性，因此在K2任务中，RR Lyre恒星的光曲线很难在K2任务中正确获得。我们开发了一种称为扩展光圈光度法（EAP）的新的光度法方法，其关键要素是将孔扩展到最佳尺寸，以补偿望远镜的运动，并在应用进一步校正之前从星星中收集所有可用的通量。到目前为止，我们手动确定了单个恒星的扩展光圈。现在，我们设法自动化了我们打算用于在K2任务中观察到的近四千名RR Lyrae目标的管道。我们介绍管道的轮廓，并与其他光度法解决方案进行一些比较。
Light curves for RR Lyrae stars can be difficult to obtain properly in the K2 mission due to the similarities between the timescales of the observed physical phenomena and the instrumental signals appearing in the data. We developed a new photometric method called Extended Aperture Photometry (EAP), a key element of which is to extend the aperture to an optimal size to compensate for the motion of the telescope and to collect all available flux from the star before applying further corrections. We determined the extended apertures for individual stars by hand so far. Now we managed to automate the pipeline that we intend to use for the nearly four thousand RR Lyrae targets observed in the K2 mission. We present the outline of our pipeline and make some comparisons to other photometric solutions.
