21cm

Libraries to analyze numerical simulations

Multipole expansion for HI intensity mapping experiments

Codes to generate fast HI field-level mocks in real and redshift space

Python interface to C2Ray, with GPU-acceleration

exo21cmFAST: 21cmFAST with exotic energy injection

PyCUDA based implementation of 21cmFAST

Front end summary

Code to compute the HI 21cm and 3HeII 3.5cm field from density fields and source catalogues

Fisher Matrix codes for IM and cross-correlations

A differentiable replica of a radio antenna — the same JAX model that simulates an observation calibrates it.

Anti Gravity

Statistical Modeler for Extended Astrophysical Radio Sources. Builds diffuse and point-source models from FHD-deconvolved GLEAM observations to improve foreground calibration for 21cm cosmology.

HI Filament Detection with Galaxy Pairwise Stacking (arXiv:2411.03988)

Green Flash

21cm Hydrogen Line

Fisher Matrix codes for cosmological and inflationary parameters.

Interactive hydrogen 21 cm line lab with Galactic rotation, longitude-velocity structure, spectroscopy, and H I column density.

Cosmology from HI maps using CNNs in PyTorch

Live radio telescope observatory for the 21 cm Hydrogen line.