The nexus between kinematic complexity and black holes in star clusters

运动复杂性与星团中黑洞之间的关系

基本信息

批准号：
18F18787
负责人：
藤井通子
金额：
$ 1.15万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for JSPS Fellows
财政年份：
2018
资助国家：
日本
起止时间：
2018-11-09 至 2020-03-31
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18F18787/
关键词：
star cluster binary black hole star clusters angular momentum kinematic complexity N-body simulations

项目摘要

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.

该研究计划旨在研究碰撞恒星系统（尤其是星团）中“运动学复杂性”与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。在第一阶段，我推进了“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审期刊，另外两篇论文将提交。这些手稿很快就出现了。与爱丁堡大学的研究人员合作编写的另外两篇关于先前启动的项目的文章也已被接受发表。在第二阶段，我已经开始构建带有中心黑洞的平衡动力学模型，并且取得了良好的成果。盖亚数据发布 2 的观测数据分析取得进展。描述这项研究的手稿目前正在准备中，将很快提交。阶段 (iii) 预计在第 2 年进行，因此尚未开始。奖学金中断（由于新就业爱丁堡），我已经在东京大学作为访问助理工作了六个月。未来，我将继续与藤井教授合作进行第三阶段以及我们已经与东京大学研究人员合作启动的其他项目。神户物理系和理化学研究所。