Title: Spinning, Precessing, Black Hole Binary Spacetime via Asymptotic Matching Show Chinese title

Title: 旋转的、进动的黑洞双星时空通过渐近匹配

Abstract: We briefly discuss a method to construct a global, analytic, approximate spacetime for precessing, spinning binary black holes. The spacetime construction is broken into three parts: the inner zones are the spacetimes close to each black hole, and are approximated by perturbed Kerr solutions; the near zone is far from the two black holes, and described by the post-Newtonian metric; and finally the wave (far) zone, where retardation effects need to be taken into account, is well modeled by the post-Minkowskian metric. These individual spacetimes are then stitched together using asymptotic matching techniques to obtain a global solution that approximately satisfies the Einstein field equations. Precession effects are introduced by rotating the black hole spin direction according to the precessing equations of motion, in a way that is consistent with the global spacetime construction. Show Chinese abstract

Abstract: 我们简要讨论一种方法，用于构建进动的、自旋的双黑洞的全局、解析的近似时空。 该时空的构建分为三部分：内区是接近每个黑洞的时空，由扰动的克尔解近似；近区远离两个黑洞，由后牛顿度规描述；最后是波（远）区，在该区域需要考虑延迟效应，由后闵可夫斯基度规很好地建模。 然后使用渐近匹配技术将这些单独的时空拼接在一起，以获得一个全局解，该解近似满足爱因斯坦场方程。 通过根据运动的进动方程旋转黑洞自旋方向来引入进动效应，这种方式与全局时空构建一致。