论文标题
由于旋转，磁化中子星的汇合二进制的潮汐共振而引起的潮汐共振引起的，因此，短伽玛射线爆发的前体耀斑爆发。
Precursor flares of short gamma-ray bursts from crust yielding due to tidal resonances in coalescing binaries of rotating, magnetized neutron stars
论文作者
论文摘要
正如GW170817和GRB 170817A的一致检测所证明的那样，短伽玛射线爆发可能与中子星形中子星星合并事件有关。尽管很少见，但有些爆发显示了早期排放的情节，在主爆发前，观察到$ \ sim 10 $秒的前体耀斑。随着由于引力波发射引起的恒星，相互潮汐力的发挥会导致恒星振荡模式的激发，这可能会与轨道运动产生共鸣。随着潮汐能沉积在恒星中，模式幅度幅度大大增加。中子恒星外壳由于振荡而导致剪切应力，如果谐振幅度足够大，可能会变得过度受损。这种过度构成会导致释放能量的断裂或地震，从而在合并之前加油前体活动。使用一些简单的Maclaurin球体模型，我们研究了磁场和快速旋转对潮汐效应的$ f $ - 和$ r $ - 模式的影响，并将相关的特征频率与相对的轨道频率连接起来，例如GRB 090510。
As evidenced by the coincident detections of GW170817 and GRB 170817A, short gamma-ray bursts are likely associated with neutron star-neutron star merger events. Although rare, some bursts display episodes of early emission, with precursor flares being observed up to $\sim 10$ seconds prior to the main burst. As the stars inspiral due to gravitational wave emission, the exertion of mutual tidal forces leads to the excitation of stellar oscillation modes, which may come into resonance with the orbital motion. Mode amplitudes increase substantially during a period of resonance as tidal energy is deposited into the star. The neutron star crust experiences shear stress due to the oscillations and, if the resonant amplitudes are large enough, may become over-strained. This over-straining can lead to fractures or quakes which release energy, thereby fueling precursor activity prior to the merger. Using some simple Maclaurin spheroid models, we investigate the influence of magnetic fields and rapid rotation on tidally-forced $f$- and $r$- modes, and connect the associated eigenfrequencies with the orbital frequencies corresponding to precursor events seen in, for example, GRB 090510.
