I am investigating the effect of dynamical friction (DF) due to a dark matter spike, on the motion of a black hole in the binary system OJ287.

我正在研究暗物质尖峰引起的动摩擦 (DF) 对双星系统 OJ287 中黑洞运动的影响。

• 批准号: 2444467
• 金额: --
• 依托单位: King's College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2444467
• 关键词: am; investigating; effect; dynamical; friction

The adiabatic growth of the supermassive black hole in the binary system OJ287, 'dressed' with a dark matter halo, should theoretically coincide with the formation of a dark matter spike near the center. The secondary black hole is expected to interact with the DM particles via dynamical friction. We can simulate the orbit of the black hole numerically and introduce several effects to investigate their expected impact on the motion. We plan to compute the times at which the secondary BH crosses the accretion disk (this corresponds to the times at which the optical outbursts occur), with and without DF and compare. We plan to conduct this on python

双星系统OJ287中超大质量黑洞的绝热生长，“披着”暗物质晕，理论上应该与中心附近暗物质尖峰的形成相一致。预计次级黑洞将通过动态摩擦与 DM 粒子相互作用。我们可以对黑洞的轨道进行数值模拟，并引入几种效应来研究它们对运动的预期影响。我们计划计算次级 BH 穿过吸积盘的时间（这对应于光学爆发发生的时间），有和没有 DF 并进行比较。我们计划在 python 上进行此操作