Code & Software

I believe research code should be open. The list below covers the projects I lead or maintain; smaller utilities and forks live on my GitHub profile.

Fortran / Python · Lead developer

Galacticus

A semi-analytic model of galaxy formation. Tracks the assembly of dark matter halos, the cooling and accretion of gas, star formation and feedback, chemical evolution, mergers, and the environmental processes that act on satellite galaxies. Used by groups around the world; designed to be extensible to non-CDM physics, alternative cosmologies, and emission-line modelling.

Source · Docs

Python · Lead developer

Dendros

Companion analysis tooling for Galacticus — convergence diagnostics, posterior visualization, and helpers for emulator training.

Source · Docs

Python · Lead developer

astrosylva

A Python library and CLI that converts halo merger-tree catalogues — Consistent-Trees, LHaloTree, SubLink, and AHF — into the Galacticus HDF5 input format. A Python port of the original C utility rockstar2galacticus.

Source · Docs

Python · Lead developer

dust-compendium

Dust attenuation tables for simple galactic geometries, computed by running the Hyperion Monte Carlo radiative transfer code over a grid of galaxy models. Tabulates the fraction of starlight escaping a galaxy as a function of wavelength, inclination, the optical depth of each dusty component, and the component sizes; Galacticus reads the result directly. Replaces the scripts behind Benson (2018), and reproduces the Ferrara et al. (1999) atlas to within its published precision.

Source · Docs · Paper