779 citations · 2.8k across the 11 of their papers we have counts for
6 papers · 1 filter
Cosmological Simulations of Decaying Dark Matter: Implications for Small-scale Structure of Dark Matter Halos
Mei-Yu Wang, Annika H. G. Peter, Louis E. Strigari +4
We present a set of N-body simulations of a class of models in which an unstable dark matter particle decays into a stable non-interacting dark matter particle, with decay lifetime…
How to Zoom: Bias, Contamination, and Lagrange Volumes in Multimass Cosmological Simulations
Jose Oñorbe, Shea Garrison-Kimmel, Ariyeh H. Maller +3
We perform a suite of multimass cosmological zoom simulations of individual dark matter halos and explore how to best select Lagrangian regions for resimulation without contaminati…
Can Feedback Solve the Too Big to Fail Problem?
Shea Garrison-Kimmel, Miguel Rocha, Michael Boylan-Kolchin +2
The observed central densities of Milky Way dwarf spheroidal galaxies (dSphs) are significantly lower than the densities of the largest (Vmax about 35 km/s) subhalos found in dissi…
Cosmological Simulations with Self-Interacting Dark Matter II: Halo Shapes vs. Observations
Annika H. G. Peter, Miguel Rocha, James S. Bullock +1
If dark matter has a large self-interaction scattering cross section, then interactions among dark-matter particles will drive galaxy and cluster halos to become spherical in their…
Cosmological Simulations with Self-Interacting Dark Matter I: Constant Density Cores and Substructure
Miguel Rocha, Annika H. G. Peter, James S. Bullock +4
We use cosmological simulations to study the effects of self-interacting dark matter (SIDM) on the density profiles and substructure counts of dark matter halos from the scales of…
Infall Times for Milky Way Satellites From Their Present-Day Kinematics
Miguel Rocha, Annika H. G. Peter, James S. Bullock
We analyze subhalos in the Via Lactea II (VL2) cosmological simulation to look for correlations among their infall times and z = 0 dynamical properties. We find that the present da…