Magnetic dynamos and magnetic flux evolution in accretion disk turbulence

吸积盘湍流中的磁发电机和磁通量演化

• 批准号: 2089689
• 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: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2089689
• 关键词: Magnetic; dynamos; magnetic; flux; evolution

The dissipation caused by magnetic turbulence drives the intense luminosity of numerous accreting astrophysical bodies, active galactic nuclei most notably. Meanwhile, the turbulence influences several separate processes, such as planet formation, outflows, outbursts, warping, and magnetic flux transport. This project seeks to better characterise magnetic turbulence in accretion disk with large-scale numerical simulations on both local and national HPC facilities. Its main aim is to understand how the relatively small-scale turbulent motions create, sustain, and advect the large-scale magnetic fields essential for jet and outflow launching.

磁湍流引起的耗散驱动了许多吸积天体的强烈亮度，尤其是活动星系核。与此同时，湍流影响了几个独立的过程，如行星形成、外流、爆发、翘曲和磁通量传输。本项目旨在通过在地方和国家高性能计算设备上的大规模数值模拟，更好地表征吸积盘中的磁湍流。它的主要目的是了解相对小规模的湍流运动如何产生、维持和平流对喷射和流出发射至关重要的大规模磁场。

项目成果

Magneto-thermal instability in galaxy clusters - II. three-dimensional simulations

星系团中的磁热不稳定性 - II。

• DOI: 10.1093/mnras/stac975
• 发表时间: 2022
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Perrone L

Magneto-thermal Instability in Dilute Magnetized Plasmas

稀磁化等离子体中的磁热不稳定性

• DOI: 10.17863/cam.90358
• 发表时间: 2022
• 作者: Perrone L

Magneto-thermal instability in galaxy clusters - I. Theory and two-dimensional simulations

星系团中的磁热不稳定性——I.理论和二维模拟

• DOI: 10.1093/mnras/stac974
• 发表时间: 2022
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Perrone L