标题： 识别从瓦解的多重系统中抛射出的群体 显示英文标题

标题： Identifying the ejected population from disintegrating multiple systems

摘要： 自行星运动学的研究揭示了最合理的解释为正在瓦解的多重系统之间的联系，这些联系可能源于场中单重/多重系统的动力学相互作用（Li等，2009）。 在这项工作中，我们探讨了已知的超冷矮星可能是瓦解多重系统组成部分的可能性，并考虑了这对这些对象性质的影响。 在这里，我们将介绍可以用于在三个数据库/目录中搜索和识别瓦解基准系统的三种方法/技术：矮星档案、Hipparcos主目录以及Gliese-Jahrei{\ss }目录。 通过对具有视差或光谱测定颜色-亮度信息的天体施加距离限制，我们能够识别出共同的距离关联。 自行星运动测量使我们能够从我们的瓦解候选样本中分离出共同自行运动的多重系统。 此外，自行星运动和位置信息允许我们基于通过时间追踪和投影的相对分量位置选择候选系统。 使用这种方法，我们确定了一个瓦解四重关联候选和两个瓦解双星候选，它们都包含一个超冷矮星。 显示英文摘要

摘要： Kinematic studies of the Hipparcos catalogue have revealed associations that are best explained as disintegrating multiple systems, presumably resulting from a dynamical encounter between single/multiple systems in the field (Li et al. 2009). In this work we explore the possibility that known ultra-cool dwarfs may be components of disintegrating multiple systems, and consider the implications for the properties of these objects. We will present here the methods/techniques that can be used to search for and identify disintegrating benchmark systems in three database/catalogues: Dwarf Archive, the Hipparcos Main Catalogue, and the Gliese-Jahrei{\ss} Catalogue. Placing distance constraints on objects with parallax or colour-magnitude information from spectrophotometry allowed us to identify common distance associations. Proper motion measurements allowed us to separate common proper motion multiples from our sample of disintegrating candidates. Moreover, proper motion and positional information allowed us to select candidate systems based on relative component positions that were tracked back and projected forward through time. Using this method we identified one candidate disintegrating quadruple association, and two candidate disintegrating binaries, all of them containing one ultra-cool dwarf.