Binary neutron star mergers and short gamma-ray bursts

利用数值相对论对双星中子星合并进行了理论研究。我们发现，如果发生在大约1500万光年的距离内，这样的事件可以被引力波天文台KAGRA和高级LIGO探测到。我们发现，这种事件的中微子也可以同时被超神冈探测器探测到。我们定量地证明了引力波可以评估所谓的伽马射线暴合并假说。如果中子星的磁场和磁星的磁场一样大，那么由磁绕组放大的磁场可以产生与短伽马射线暴一样大的坡印亭磁通。

We theoretically investigated binary neutron star mergers by Numerical Relativity. We found that such an event could be detected by the gravitational wave observatory KAGRA and Advanced LIGO if it happened within the distance of about fifteen millions light years. We found that neutrinos from such a event could be simultaneously detected by the Hyper-Kamiokande as well. We quantitatively showed that the gravitational waves can assess the so-called merger hypothesis of gamma-ray bursts. If neutron stars have a magnetic field as large as that of magnetars, the amplified magnetic field by the magnetic winding can produce a poynting flux whose amplitude is as large as that of short-gamma ray burst.