论文标题
探测具有极高质量比灵感的黑洞的矢量头发
Probing vector hair of black holes with extreme mass ratio inspirals
论文作者
论文摘要
Bumblebee重力模型具有非微小耦合与重力的矢量场，是Einstein-Maxwell理论的自然扩展。在这一理论中，黑洞可以携带矢量头发，从而使该度量偏离Schwarzschild公制。为了研究矢量头发的可检测性，我们考虑了一个极端的质量比率（EMRI）系统，其中一个恒星质量的黑洞灵感进入了超级质量的黑洞。我们发现，通过通过空间的重力波检测器对EMRI进行一年的观察，我们可以在BumbleBee Gravity模型中探测矢量电荷至$ Q \ sim 10^{ - 3} $，这与当前的EHT观测值相比，这大约是三个幅度的更高级数。
The bumblebee gravity model, with a vector field nonminimally coupled to gravity, is a natural extension of the Einstein-Maxwell theory. In this theory, a black hole can carry a vector hair, making the metric deviate from the Schwarzschild metric. To investigate the detectability of the vector hair, we consider an Extreme Mass Ratio Inspiral (EMRI) system, where a stellar-mass black hole inspiraling into a supermassive black hole. We find that, with a one-year observation of an EMRI by a space-based gravitational-wave detector, we can probe the vector charge as small as $Q\sim 10^{-3}$ in the bumblebee gravity model, which is about three orders of magnitude tighter comparing to current EHT observations.
