论文标题
在爱因斯坦立方重力中慢慢旋转黑洞
Slowly rotating black holes in Einsteinian cubic gravity
论文作者
论文摘要
我们在四个维度上，构造了爱因斯坦立方重力（ECG）的缓慢旋转黑洞溶液，并具有平坦和广告渐近线的四个维度。在旋转参数中的领先顺序上，相对于静态情况的唯一修改是出现非散布$ g_ {t ϕ} $组件。与静态情况类似，确定该组件的方程式的顺序可以减少两次，从而产生二阶微分方程，可以轻松地通过数值求解作为ECG耦合的函数。我们研究了如何相对于爱因斯坦重力案例修改溶液的各种物理特性，包括其角速度，光子球，光子环，阴影和最内向的稳定圆形轨道（在时间表的大地测量上）。
We construct slowly rotating black-hole solutions of Einsteinian cubic gravity (ECG) in four dimensions with flat and AdS asymptotes. At leading order in the rotation parameter, the only modification with respect to the static case is the appearance of a non-vanishing $g_{tϕ}$ component. Similarly to the static case, the order of the equation determining such component can be reduced twice, giving rise to a second-order differential equation which can be easily solved numerically as a function of the ECG coupling. We study how various physical properties of the solutions are modified with respect to the Einstein gravity case, including its angular velocity, photon sphere, photon rings, shadow, and innermost stable circular orbits (in the case of timelike geodesics).
