大型综合巡天望远镜能否探测到进入太阳系的太阳系外星子？
Will the Large Synoptic Survey Telescope detect extra-solar planetesimals entering the solar system?
摘要：
小行星的形成是恒星形成过程的常见副产品。以太阳系的动力学历史为指导方针-其中由于巨行星的重力扰动，星子带被严重耗尽-并假设类似的过程在其他行星系中发生，人们会期望星间空间充满太阳系外的星子。然而，到目前为止，还没有发现任何一个这样的物体进入太阳系，尽管由于它的高度双曲线轨道，它显然可以与太阳系彗星区分开来。大型综合巡天望远镜（LSST）将以极高的灵敏度提供覆盖范围广的天空地图，非常适合探测活动和不活动的彗星等移动物体。在这些观测的预期中，我们估计在调查期间可能会探测到多少不活跃的“星际彗星”。计算考虑了（从观测和模型）恒星的数量密度，可形成微行星的固体数量，行星和微行星形成的频率，微行星喷射的效率，以及这些小天体可能的大小分布。
英文摘要：
Planetesimal formation is a common by-product of the star formation process. Taking the dynamical history of the Solar system as a guideline -- in which the planetesimal belts were heavily depleted due to graviational perburbation with the giant planets -- and assuming similar processes have take place in other planetary systems, one would expect the interestellar space to be filled with extra-solar planetesimals. However, not a single one of these objects has been detected so far entering the Solar system, even though it would clearly be distinguishable from a Solar system comet due to its highly hyperbolic orbit. The Large Synoptic Survey Telescope (LSST) will provide wide coverage maps of the sky to a very high sensitivity, ideal to detect moving objects like comets, both active and inactive. In anticipation of these observations, we estimate how many inactive "interstellar comets" might be detected during the duration of the survey. The calculation takes into account estimates (from observations and models) of the number density of stars, the amount of solids available to form planetesimals, the frequency of planet and planetesimal formation, the efficiency of planetesimal ejection, and the possible size distribution of these small bodies.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
