论文标题
Schwarzschild的黑洞，带有拓扑缺陷，大黄蜂重力
Schwarzschild-like black hole with a topological defect in bumblebee gravity
论文作者
论文摘要
在本文中，我们在全球单极场周围的爱因斯坦 - 希尔伯特·鲍伯（EHB）重力中得出了一个确切的黑洞时空度量。我们研究黑洞的地平线，温度和光子球。使用无效的大地测量方程，我们获得了由Schwarzschild样黑洞铸造的阴影，并在Bumblebee Gravity中具有拓扑缺陷。有趣的是，黑洞阴影的半径随着全局单极参数的增加而增加。我们还可以看到不同参数值的阴影和能量排放速率。此外，使用高斯河网定理，我们在弱场限制下计算偏转角，并讨论在弱偏转角度测试全局单极场和大黄蜂场的效果的可能性。我们发现，全局单极参数以及Lorentz对称性破坏参数对偏转角的影响越来越高。
In this paper, we derive an exact black hole spacetime metric in the Einstein-Hilbert-Bumblebee (EHB) gravity around global monopole field. We study the horizon, temperature, and the photon sphere of the black hole. Using the null geodesics equation, we obtain the shadow cast by the Schwarzschild-like black hole with a topological defect in bumblebee gravity. Interestingly, the radius of shadow of the black hole increases with increase in the global monopole parameter. We also visualize the shadows and energy emission rates for different values of parameters. Moreover, using the Gauss-Bonnet theorem, we calculate the deflection angle in weak field limits and we discuss the possibility of testing the effect of global monopole field and bumblebee field, on a weak deflection angle. We find that the global monopole parameter and also Lorentz symmetry breaking parameter has an increasing effect on the deflection angle.
