TheHaloMod: An online calculator for the halo model

Understand

The halo model is a successful framework for describing the distribution of matter in the Universe -- from weak lensing observables to galaxy 2-point correlation functions.

• We review the basic formulation of the halo model and several of its components in the context of galaxy two-point statistics, developing a coherent framework for its application.
• We use this framework to motivate the presentation of a new Python tool for simple and efficient calculation of halo model quantities, and their extension to galaxy statistics via a \textit{halo occupation distribution}, called \halomod.
• This tool is efficient, simple to use, comprehensive and importantly provides a great deal of flexibility in terms of custom extensions.