The nexus between kinematic complexity and black holes in star clusters

这个研究项目的目的是研究碰撞恒星系统，特别是星团中“运动复杂性”和黑洞之间联系的物理起源。这些活动分为三个主要阶段：(i)形成，（ii）平衡，（iii）演化。在阶段(i)，我推动了“运动复杂性”在星团动力学中的作用的理论研究。两篇文章已提交给同行评议期刊，另外两篇论文将很快提交。这些手稿是与爱丁堡大学的研究人员合作编写的。另外两篇关于以前开始的项目的文章也已接受出版。在（ii）阶段，我已经开始了以中心黑洞为中心的平衡动力学模型的构建，并在Gaia data Release 2的观测数据分析方面取得了不错的进展。描述这项研究的手稿目前正在准备中，将很快提交。第三阶段预计在第二年进行，因此尚未开始。在奖学金中断后（由于爱丁堡大学的新工作），我作为访问助理在东京大学工作了六个月。在未来，我将继续与藤井教授在第三阶段以及我们已经与东京大学物理系和神户理化研究所的研究人员合作开展的其他项目上进行合作。

This programme of research is aimed at investigating the physical origin of the nexus between‘kinematic complexity’and black holes in collisional stellar systems, especially star clusters. The activities were structured in three main phases: (i) formation, (ii) equilibrium, (iii) evolution.On phase (i), I have pushed forward the theoretical investigation of the role of 'kinematic complexity' in the dynamics of star clusters. Two articles have been submitted to peer-reviewed journals and two additional papers will be submitted shortly. These manuscripts have been prepared in collaboration with researchers at Univ. Edinburgh. Two additional articles on previously started projects have also been accepted for publications.On phase (ii), I have started the construction of equilibrium dynamical models with a central black hole and I have made good progress in the analysis of the observational data from Gaia Data Release 2. A manuscript describing this study is currently in preparation and will be submitted soon.Phase (iii) was expected to take place in Year 2, therefore has not started yet.After the Fellowship interruption (due to new employment at Univ. Edinburgh), I have been based at UTokyo as a Visiting Associate for six months. In the future, I will continue to collaborate with Prof Fujii on phase (iii) and on other projects which we have already initiated in collaboration with researchers at the UTokyo Dept. of Physics and RIKEN in Kobe.