Introducing a new multi-particle collision method for the evolution of dense stellar systems II. Core collapse

Understand

In a previous paper we introduced a new method for simulating collisional gravitational $N$-body systems with linear time scaling on $N$, based on the Multi-Particle Collision (MPC) approach.

• This allows us to simulate globular clusters with a realistic number of stellar particles in a matter of hours on a typical workstation.
• We evolve star clusters containing up to $10^6$ stars to core collapse and beyond.
• We quantify several aspects of core collapse over multiple realizations and different parameters, while always resolving the cluster core with a realistic number of particles.