Dynamics of astrophysical discs through local studies of rings

通过对环的局部研究来研究天体物理圆盘的动力学

• 批准号: 2267215
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2267215
• 关键词: Dynamics; astrophysical; discs; through; local

The study of disc structures in the form of narrow rings is motivated by recent observations of such structures around young stars using ALMA. Narrow rings are also known to exist around Saturn and Uranus; some are confined by satellites but others are apparently not, and many have dynamical oscillation modes. "Slender torus" models have also been investigated in the context of accretion discs around black holes. Simulations of warped discs have shown that they have a tendency to separate into mutually inclined rings. This project will use both analytical and computational methods to study a variety of aspects of the dynamics of astrophysical discs with an emphasis on the formation, evolution and dynamics of rings.

最近利用阿尔马观测年轻恒星周围的这种结构，激发了对窄环形式的盘结构的研究。土星和天王星周围也存在狭窄的环;有些环被卫星限制，但有些显然没有，许多环具有动力学振荡模式。在黑洞周围的吸积盘的背景下，也研究了“细长环面”模型。对翘曲圆盘的模拟表明，它们倾向于分离成相互倾斜的环。该项目将使用分析和计算方法研究天体物理盘动力学的各个方面，重点是环的形成、演变和动力学。

项目成果

Nonlinear Dynamics of Warped Astrophysical Discs

扭曲天体物理圆盘的非线性动力学

• DOI: 10.17863/cam.99643
• 发表时间: 2023
• 作者: Fairbairn C

Non-linear dynamics of hydrodynamic tori as a model of oscillations and bending waves in astrophysical discs

流体动力学环面的非线性动力学作为天体物理圆盘中振荡和弯曲波的模型

• DOI: 10.1093/mnras/stab1554
• 发表时间: 2021
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Fairbairn C

Non-linear resonant torus oscillations as a model of Keplerian disc warp dynamics

非线性共振环面振荡作为开普勒圆盘扭曲动力学模型

• DOI: 10.1093/mnras/stab2717
• 发表时间: 2021
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Fairbairn C