3 papers
astro-ph.GA2026
Treecode2: The Power of Pluralism. I. Static Tests
Joshua E. Barnes
I describe an `oct-tree' N-body code which randomly shifts, reorients, and resizes the root cell at each time step. Averaging over a plurality of root cell positions and orientatio…
astro-ph.GA2025
Effects of Halo Anisotropy on Disc Galaxy Encounters
Tatum M. Umiamaka, Joshua E. Barnes
Spherical galaxy models with radially anisotropic velocity distributions merge faster than their isotropic counterparts. Here we investigate the effects of radially anisotropic hal…
astro-ph.GA2023
Orbit decay in encounters between anisotropic spherical galaxies of equal mass
Lucas Saleh, Joshua E. Barnes
We investigate the effect of radial anisotropy on the rate of orbit decay in parabolic encounters of identical spherical galaxies. Our galaxy models have Hernquist density profiles…