Numerical Simulations in Cosmology I: Methods

TL;DR

This paper introduces various computational methods used in cosmology, focusing on N-body simulations, their numerical techniques, resolution effects, and halo identification methods, providing foundational knowledge for cosmological modeling.

Contribution

It offers a concise overview of key numerical methods and techniques used in cosmological N-body simulations, highlighting their features and challenges.

Findings

Discussion of equations and numerical techniques in N-body simulations

Analysis of effects of resolution on simulation accuracy

Overview of halo identification methods

Abstract

This lecture gives a short introduction to different methods used in cosmology. The focus is on major features of N-body simulations: equations, main numerical techniques, effects of resolution, and methods of halo identification.