TAPIR Seminar

In person: 370 Cahill. To Join via Zoom: 864 8902 5566

ABSTRACT: It has long been known that three-dimensional effects play a central role in core-collapse supernova (CCSN) explosions. Although 3D simulations are required to understand the physics and predict the outcomes, they are too computationally expensive and the number of 3D models is far from satisfactory. To tackle this problem, we improve the radiation-hydrodynamics code Fornax and carry out more than twenty 3D simulations, which allows us to study the systematic trends of CCSN explosions. We also combine Fornax and the code FLASH to build a pipeline that can evolve a star from core collapse to shock breakout. In this talk, I will present some new insights extracted from these long-term 3D CCSN simulations, including the solution to the CCSN 44Ti problem, and the four potential black hole formation channels in CCSNe. I will also mention the challenges in future simulations, such as the effects of neutrino oscillations and the formation of potential central engines.