论文标题
NASA的TESS任务审查的遥远的跨北纳普对象候选人审查：比预期的还是误报？
Distant trans-Neptunian object candidates from NASA's TESS mission scrutinized: fainter than predicted or false positives?
论文作者
论文摘要
NASA的过境系外行星调查卫星（TESS）正在对空间的天空进行同质调查，以寻找过境的系外行星。收集的数据还用于检测传递太阳系对象，包括位于80-200 au范围内的中心距离的17个新的太阳系身体候选物，需要使用基于地面的望远镜资源进行确认的后续观察。在这里，我们提出了概念验证的迷你调查结果，旨在恢复其中两个使用4.2 m William Herschel望远镜和Qhy600L CMOS摄像头进行的候选者，并安装在其主要焦点上。对于每位候选人，我们都调查了在斯隆r'中预期的坐标周围的一平高的天空。连续五个或几乎连续晚上重新访问了同一位置，在R'<23 mag上达到S/N> 4。我们专注于位于赤道坐标的圆形苔丝候选物周围的天空区域（07:00:15，+86：55：19），来自地球的202.8 au，以及（06:39:47，+83：43：43：43：43：43：43：54）在162.1 Au，但我们无法在R'<23 mag上恢复其中的任何一个。基于对获得图像的详细分析，我们确认两个候选人都比预期的要么愚蠢，要么是假阳性。
NASA's Transiting Exoplanet Survey Satellite (TESS) is performing a homogeneous survey of the sky from space in search of transiting exoplanets. The collected data are also being used for detecting passing Solar system objects, including 17 new outer Solar system body candidates located at geocentric distances in the range 80-200 au, that need follow-up observations with ground-based telescope resources for confirmation. Here, we present results of a proof-of-concept mini-survey aimed at recovering two of these candidates that was carried out with the 4.2 m William Herschel Telescope and a QHY600L CMOS camera mounted at its prime focus. For each candidate attempted, we surveyed a patch of sky of over one square degree around its expected coordinates in Sloan r'. The same location was revisited in five consecutive or nearly consecutive nights, reaching S/N > 4 at r' < 23 mag. We focused on the areas of sky around the circumpolar TESS candidates located at equatorial coordinates (07:00:15, +86:55:19), 202.8 au from Earth, and (06:39:47, +83:43:54) at 162.1 au, but we could not recover either of them at r' < 23 mag. Based on the detailed analysis of the acquired images, we confirm that either both candidates are much fainter than predicted or that they are false positives.
