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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.

该研究计划旨在调查碰撞恒星系统（尤其是星团）中“运动复杂性”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（i）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，另外两篇论文将很快提交。这些手稿是与大学研究人员合作编写的。爱丁堡。关于先前启动的项目的另外两篇文章也已被接受发表。在第 (ii) 阶段，我已经开始构建具有中心黑洞的平衡动力学模型，并且在分析盖亚数据版本 2 的观测数据方面取得了良好进展。描述这项研究的手稿目前正在准备中，并将很快提交。第 (iii) 阶段预计在第 2 年进行，因此尚未开始。在奖学金中断后（由于新的原因）大学就业爱丁堡），我作为访问助理在东京大学工作了六个月。将来，我将继续与 Fujii 教授合作进行第三阶段以及我们已经与东京大学物理系和神户 RIKEN 的研究人员合作启动的其他项目。