Speaker
Description
The gravitational waves emitted by a binary of two neutron stars tell us not only information about the mass of neutron stars, but also information about the matter properties of deep inside neutron stars. The electromagnetic waves emitted by matter expelled by several mechanisms after the merger reveal the binary's post-merger activity. By combining those two 'messengers', we can better understand the neutron star. In this talk, I will review such multi-messenger aspects of binary neutron star mergers. For the understanding of the electromagnetic emission, we have to understand how matter is expelled in the binary merger; thus, we need a detailed model of the phenomenon. I will mention the current status of the numerical modeling of the binary merger and mass ejection.