CM3 - Dynamics of Compact Binaries |
Speaker_ |
Duez, Matthew |
Co-autors |
Yuk Tung Liu, Stuart Shapiro, Masaru Shibata, and Branson Stephens |
Talk _ |
The final fate of binary neutron star systems: What happens after the merger? The final fate of binary neutron star systems: What happens after the merger? |
Abstract _ |
The merger of two neutron stars usually produces a remnant with a mass significantly above the single (nonrotating) neutron star maximum mass. In some cases, the remnant will be stabilized against collapse by rapid, differential rotation. MHD-driven angular momentum transport eventually leads to the collapse of the remnant's core, resulting in a black hole surrounded by a massive accreting torus. In this talk, I present simulations of this process using numerical relativistic MHD. I discuss numerical issues involved in simulating the remnant before and after the appearance of the black hole. The plausibility of generating short-duration gamma-ray bursts through this scenario is also discussed. |