The Cosmogrid Simulation: Statistical Properties of Small Dark Matter Halos

Understand

We present the results of the "Cosmogrid" cosmological N-body simulation suites based on the concordance LCDM model.

• The Cosmogrid simulation was performed in a 30Mpc box with 2048^3 particles.
• The mass of each particle is 1.28x10^5 Msun, which is sufficient to resolve ultra-faint dwarfs.
• We found that the halo mass function shows good agreement with the Sheth & Tormen fitting function down to ~10^7 Msun.