寻找太阳的太阳黑子：依巴谷星表中的探索性搜索
The Quest for the Sun's Siblings: an Exploratory Search in the Hipparcos Catalogue
摘要：
我们描述了搜索的结果，在依巴谷星表中的恒星之间的太阳的诞生集群的残余。这种搜索是基于预测的相空间分布的太阳的兄弟姐妹从简单的模拟的轨道的集群恒星在一个光滑的银河系的潜力。对于100 pc以内的恒星，模拟表明，研究那些相对于太阳有小空间运动的恒星是很有趣的。从这样选出的候选兄弟中，有六颗恒星的年龄与太阳的年龄一致。考虑到它们的径向速度和丰度，只有一个潜在的候选者，HIP 21158，但基本上搜索的结果是否定的。这与Portegies Zwart（2009）对太阳附近兄弟姐妹数量的预测一致。我们讨论了应该采取的步骤，预期从盖亚任务的数据，以便在未来进行富有成效的搜索太阳的兄弟姐妹。
英文摘要：
We describe the results of a search for the remnants of the Sun's birth cluster among stars in the Hipparcos Catalogue. This search is based on the predicted phase space distribution of the Sun's siblings from simple simulations of the orbits of the cluster stars in a smooth Galactic potential. For stars within 100 pc the simulations show that it is interesting to examine those that have small space motions relative to the Sun. From amongst the candidate siblings thus selected there are six stars with ages consistent with that of the Sun. Considering their radial velocities and abundances only one potential candidate, HIP 21158, remains but essentially the result of the search is negative. This is consistent with predictions by Portegies Zwart (2009) on the number of siblings near the Sun. We discuss the steps that should be taken in anticipation of the data from the Gaia mission in order to conduct fruitful searches for the Sun's siblings in the future.
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