论文标题
不对称造成的恒星轨迹偏差部分潮汐破坏
Deviation in stellar trajectory induced by asymmetry in partial tidal disruption
论文作者
论文摘要
我们研究了部分潮汐破坏，并对残留自结界核心的轨道动力学进行了定量分析。我们执行平滑的粒子流体动力学模拟，以表明由于黑洞的潮汐场的部分破坏会导致特定的轨道能量和核心的角动量的跳跃。除了增强其速度外，它直接导致核心轨迹的偏差。我们的分析表明，特定轨道能和角动量的变化较高时较高的距离时。我们得出的结论是，两个潮汐尾的质量不对称会增加轨迹偏差的幅度。我们的研究表明，只有在质量比$ q \ lyssim 10^3 $时，可观察到的偏差才有可能，这表明中间质量黑洞的范围。
We study partial tidal disruption and present a quantitative analysis of the orbital dynamics of the remnant self-bound core. We perform smoothed particle hydrodynamical simulations to show that partial disruption of a star due to the tidal field of a black hole leads to a jump in the specific orbital energy and angular momentum of the core. It directly leads to deviation in the core's trajectory apart from getting a boost in its velocity. Our analysis shows that the variations in the specific orbital energy and angular momentum are higher when the pericentre distance is lower. We conclude that higher mass asymmetry of the two tidal tails increases the magnitude of the trajectory deviations. Our study reveals that observable deviations are only possible when mass ratio $q \lesssim 10^3 $, which indicates the range of intermediate-mass black holes.
