We review the current status of general relativistic studies for coalescences of black hole–neutron star binaries. First, high-precision computations of black hole–neutron star binaries in quasiequilibrium circular orbits are summarized, focusing on the quasiequilibrium sequences and the mass-shedding limit. Next, the current status of numerical-relativity simulations for the merger of black hole–neutron star binaries is described. We summarize our understanding for the merger process, tidal disruption and its criterion, properties of the merger remnant and ejected material, gravitational waveforms, and gravitational-wave spectra. We also discuss expected electromagnetic counterparts to black hole–neutron star coalescences.

我们回顾了黑洞-中子星双星合并广义相对论研究的现状。首先，总结了准平衡圆形轨道上黑洞-中子星双星的高精度计算，重点关注准平衡序列和质量脱落极限。接下来，描述黑洞-中子星双星合并的数值相对论模拟的现状。我们总结了对合并过程、潮汐破坏及其判据、合并残余物和喷射物质的性质、引力波形和引力波谱的理解。我们还讨论了黑洞-中子星聚结的预期电磁对应物。