标题： 银河系核球的形成 显示英文标题

标题： The Formation of the Milky Way Nuclear Cluster

摘要： 核星团在许多星系的中心被观测到。 特别是在银河系中心，核星团与一个中心超大质量黑洞共存。 这些星团的起源仍然未知；一种可能的形成机制是大质量球状星团的衰变，这些星团由于动力摩擦而向星系中心下沉，并随后合并。 通过利用复杂的N体模拟研究这一情景，我们发现这个过程可能导致最终产物，该产物实际上表现出银河系核星团的许多观测特征。 显示英文摘要

摘要： Nuclear Star Clusters are observed at the center of many galaxies. In particular in the center of the Milky Way the Nuclear Star Cluster coexists with a cen- tral supermassive black hole. The origin of these clusters is still unknown; a possible formation mechanism is the decay of massive globular clusters driven inward to the galactic center by dynamical friction and their subsequent merging. By investigating this scenario by means of sophisticated N-body simulations we found that this process could lead to a final product which actually shows many of the observed features of the Milky Way Nuclear Star Cluster.