We review the field of collisionless numerical simulations for the large-scale structure of the
Universe. We start by providing the main set of equations solved by these simulations and …

Numerical methods have become a powerful tool for research in astrophysics, but their utility
depends critically on the availability of suitable simulation codes. This calls for continuous …

We present abacus, a fast and accurate cosmological N-body code based on a new method
for calculating the gravitational potential from a static multipole mesh. The method …

We evaluate the consistency between lensing and clustering based on measurements from
Baryon Oscillation Spectroscopic Survey combined with galaxy–galaxy lensing from Dark …

We present a novel simulation-based hybrid emulator approach that maximally derives
cosmological and Halo Occupation Distribution (HOD) information from non-linear galaxy …

We introduce the AbacusHOD model and present two applications of AbacusHOD and the
AbacusSummit simulations to observations. AbacusHOD is a Halo Occupation Distribution …

Perturbative, or effective field theory (EFT)-based, full-shape analyses of galaxy clustering
data involve “nuisance parameters” to capture various observational effects such as the …

Massive neutrinos suppress the growth of structure on small scales and leave an imprint on
large-scale structure that can be measured to constrain their total mass, M ν. With standard …

Approximate methods to populate dark-matter haloes with galaxies are of great utility to
galaxy surveys. However, the limitations of simple halo occupation models (HODs) preclude …

To extract information from the clustering of galaxies on non-linear scales, we need to model
the connection between galaxies and haloes accurately and in a flexible manner. Standard …