论文标题
检测木马小行星（3548）Eurybates的卫星 - 露西任务目标
Detection of a Satellite of the Trojan Asteroid (3548) Eurybates -- A Lucy Mission Target
论文作者
论文摘要
我们描述了使用哈勃太空望远镜获得的图像中木马小行星（3548）的卫星发现的发现。该卫星在三个单独的时期被检测到，2018年9月两个，一个在2020年1月。卫星在所有三个时期的亮度均与有效直径为d2 = 1.2 +/- 0.4 km的有效直径一致。与Eurybates的预计分离为〜1700-2300 km，位置各不相同，与各种可能的轨道一致。 Eurybates是露西发现任务的目标，对卫星的早期发现为这次相遇的科学回报大大扩展提供了机会。
We describe the discovery of a satellite of the Trojan asteroid (3548) Eurybates in images obtained with the Hubble Space Telescope. The satellite was detected on three separate epochs, two in September 2018 and one in January 2020. The satellite has a brightness in all three epochs consistent with an effective diameter of d2 =1.2+/-0.4 km. The projected separation from Eurybates was s~1700-2300 km and varied in position, consistent with a large range of possible orbits. Eurybates is a target of the Lucy Discovery mission and the early detection of a satellite provides an opportunity for a significant expansion of the scientific return from this encounter.
