Precision Photometry with the new generation of fast readout Scientific CMOS Cameras

该项目涉及使用Andor生产的新型科学CMOS（sCMOS）相机进行高精度天文测光。sCMOS相机最近已经在实验室条件下进行了测试，并且结果对于天文学目的是非常有希望的（Karpov等人，2019年）。下一代交通调查（NGTS;惠特利等人，2018）设施是一套12个相同的20厘米望远镜，位于智利的帕拉纳尔天文台（世界上最好的地点之一）。NGTS用高精度测光测量明亮的恒星，以检测凌日“系外行星”-绕其他恒星运行的行星（例如NGTS-1b; Bayliss等人，2018年）。我们建议将新一代Andor sCMOS探测器耦合到NGTS望远镜。其主要目标是有史以来第一次获得高精度的明亮恒星测光，以探测凌日系外行星。我们将与另一个NGTS望远镜一起运行这个实验，该望远镜具有现有的CCD相机以进行比较。sCMOS探测器尚未被天文学界所接受，但深入且有意义的天空评估的同行评审出版物是获得这种接受的关键。

This project involves the usage of new scientific CMOS (sCMOS) cameras produced by Andor for high-precision astronomical photometry. sCMOS cameras have recently been tested under laboratory conditions, and the results are extremely promising for astronomical purposes (Karpov et al., 2019). The Next Generation Transit Survey (NGTS; Wheatley et al., 2018) facility is a set of 12 identical 20cm telescopes situated at Paranal Observatory in Chile (one of the best sites in the world). NGTS surveys bright stars with high precision photometry in order to detect transiting "exoplanets" - planets orbiting other stars (e.g. NGTS-1b; Bayliss et al., 2018). We propose to couple a new generation Andor sCMOS detector to an NGTS telescope. The primary goal is, for the first time ever, to obtain high precision photometry of bright stars to detect transiting exoplanets. We will run this experiment alongside another NGTS telescope with an existing CCD camera for comparative purposes. sCMOS detectors have yet to be embraced by the astronomical community, however peer-reviewed publications of in-depth and meaningful on-sky assessments are the key to unlocking such acceptance.