201 citations · 491 across the 4 of their papers we have counts for
4 papers
A multiphysics and multiscale software environment for modeling astrophysical systems
Simon Portegies Zwart, Steve McMillan, Stefan Harfst +2
We present MUSE, a software framework for combining existing computational tools for different astrophysical domains into a single multiphysics, multiscale application. MUSE facili…
A Hybrid N-Body Code Incorporating Algorithmic Regularization and Post-Newtonian Forces
S. Harfst, A. Gualandris, D. Merritt +1
We describe a novel N-body code designed for simulations of the central regions of galaxies containing massive black holes. The code incorporates Mikkola's 'algorithmic' chain regu…
Collisionally Regenerated Dark Matter Structures in Galactic Nuclei
David Merritt, Stefan Harfst, Gianfranco Bertone
We show that the presence of a rho~1/r^{3/2} dark matter overdensity can be robustly predicted at the center of any galaxy old enough to have grown a power-law density cusp in the…
Performance Analysis of Direct N-Body Algorithms on Special-Purpose Supercomputers
Stefan Harfst, Alessia Gualandris, David Merritt +3
Direct-summation N-body algorithms compute the gravitational interaction between stars in an exact way and have a computational complexity of O(N^2). Performance can be greatly enh…