论文标题
超级质量黑洞对白色矮人的潮汐破坏的数值模拟模拟
Numerical-relativity simulation for tidal disruption of white dwarfs by a supermassive black hole
论文作者
论文摘要
我们研究白色矮人在椭圆轨道上的潮汐破坏，其偏心性为$ \ sim 1/3 $ - $ 2/3 $，通过一个非旋转的质量$ M _ {\ rm bh} = 10^5m_ \ odot $的超级质量黑洞$ m _ {\ rm bh} = 10^5m_ \ odot $在完全一般的相对性模拟中，以极端的质量为目标，以极端的群众为目标。通过采用合适的公式进行数值借位模拟，在该配方中，可以准确地解决白矮人的弱自我实力。我们重新确认，对于$ \ sim的典型质量的白色矮人会发生潮汐破坏0.6m_ \ odot $，而半径$ \约1.2 \ times 10^4 $ \，靠近$ m _ {\ rm bh} \ rm bh} \ apt 4 \ apt $ apt $ apt $ apt $ apt $ apt $ 10^5m的非旋转黑孔附近的边缘约束轨道附近。
We study tidal disruption of white dwarfs in elliptic orbits with the eccenticity of $\sim 1/3$--$2/3$ by a non-spinning supermassive black hole of mass $M_{\rm BH}=10^5M_\odot$ in fully general relativistic simulations targeting the extreme mass-ratio inspiral leading eventually to tidal disruption. Numerical-relativity simulations are performed by employing a suitable formulation in which the weak self-gravity of white dwarfs is accurately solved. We reconfirm that tidal disruption occurs for white dwarfs of the typical mass of $\sim 0.6M_\odot$ and radius $\approx 1.2 \times 10^4$\,km near the marginally bound orbit around a non-spinning black hole with $M_{\rm BH}\alt 4\times 10^5M_\odot$.
