标题： 使用Hipparcos数据识别运动群及成员选择 显示英文标题

标题： Identification of Moving Groups and Member Selection using Hipparcos Data

摘要： 提出了一种在天体测量目录中识别速度空间内相干结构（移动星团）的新方法：意大利面方法。 该方法依赖于位置、视差和自行，并且非常适合用于在依巴谷目录中搜索移动星团。 不需要径向速度信息。 该方法已在合成数据上进行了广泛测试，并应用于依巴谷对昴星团和IC2602疏散星团的测量。 得到的成员列表与佩里曼等人对昴星团的结果以及怀特奥克和布拉耶斯对IC2602的结果非常一致。 显示英文摘要

摘要： A new method to identify coherent structures in velocity space --- moving groups --- in astrometric catalogues is presented: the Spaghetti method. It relies on positions, parallaxes, and proper motions and is ideally suited to search for moving groups in the Hipparcos Catalogue. No radial velocity information is required. The method has been tested extensively on synthetic data, and applied to the Hipparcos measurements for the Hyades and IC2602 open clusters. The resulting lists of members agree very well with those of Perryman et al. for the Hyades and of Whiteoak and Braes for IC2602.