论文标题
在修饰的重力理论中,渐近平坦的真空溶液用于旋转黑洞
Asymptotically flat vacuum solution for a rotating black hole in a modified gravity theory
论文作者
论文摘要
F(r)重力理论是修改后的爱因斯坦重力的理论之一。另一方面,磁场方程的真空解决方案是黑洞几何形状的解决方案。我们在这里建立了f(r)重力中渐近平坦的旋转黑洞溶液。从本质上讲,这导致了Kerr黑洞的修改解决方案。该解决方案表现出黑洞及其几何形状的基本特性的变化。它特别表明,与爱因斯坦重力的半径相比,边缘稳定和结合轨道的半径以及黑洞事件地平线增加,具体取决于修饰的重力参数。它进一步说明,旋转(Kerr)参数大于统一性,而没有任何裸露的奇异性,更快地旋转黑洞。这支持了弱宇宙审查假设。
The theory of f(R)-gravity is one of the theories of modified Einstein gravity. The vacuum solution, on the other hand, of the field equation is the solution for black hole geometry. We establish here an asymptotically flat rotating black hole solution in an f(R)-gravity. This essentially leads to the modified solution to the Kerr black hole. This solution exhibits the change in fundamental properties of the black hole and its geometry. It particularly shows that radii of marginally stable and bound orbits and black hole event horizon increase compared to those in Einstein gravity, depending on the modified gravity parameter. It further argues for faster spinning black holes with spin (Kerr) parameter greater than unity, without any naked singularity. This supports the weak cosmic censorship hypothesis.