PreprintarXiv licencearXiv
hyprfine: simulating the 21-cm signal from the Dark Ages through to the Epoch of Reionization on a GPU
Abstract
hyprfine is an analytic simulation of the sky-averaged 21-cm signal from z=1100 − 6 written using JAX and Python for native GPU capabilities. It models the average temperature of the 21-cm signal over cosmic time as a function of the Λ-CDM cosmology parameters and the astrophysics of the first stars and galaxies. As far as we are aware, the code is the first analytic GPU native simulation of the 21-cm signal. It runs in a fraction of a second, parallelises efficiently across a GPU and is differentiable through the Dark Ages (z ≥ 35). The code is publicly available at https://www.github.com/htjb/hyprfine.
Related
- Consistently Reproducing Early Galaxy Observations and 21-cm Signal during the Epoch of Reionization
- Stacking HI in the dark: Towards detecting the reionization-epoch 21 cm signal in Lyman-α dark gaps
- Calibration requirements for Epoch of Reionization 21-cm signal observations - V. Bias and variance in the cylindrical power spectrum from uGMRT Band 3 observations of the ELAIS-N1 field
- Square Kilometer Array Synergies for the Epoch of Reionization and Cosmic Dawn
- The multiphase circumgalactic medium in the epoch of reionization: CII and CIV absorbers around [OIII] emitters
BibTeX
@misc{bevins2026hyprfine,
title = {{hyprfine: simulating the 21-cm signal from the Dark Ages through to the Epoch of Reionization on a GPU}},
author = {Harry T. J. Bevins},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.01865},
eprint = {2610.01865},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.01865},
}
RIS
TY - UNPB
TI - hyprfine: simulating the 21-cm signal from the Dark Ages through to the Epoch of Reionization on a GPU
AU - Harry T. J. Bevins
PY - 2026
DA - 2026/10/02
PB - arXiv
DO - 10.48550/arxiv.2610.01865
UR - https://arxiv.org/abs/2610.01865
AB - hyprfine is an analytic simulation of the sky-averaged 21-cm signal from z=1100 − 6 written using JAX and Python for native GPU capabilities. It models the average temperature of the 21-cm signal over cosmic time as a function of the Λ-CDM cosmology parameters and the astrophysics of the first stars and galaxies. As far as we are aware, the code is the first analytic GPU native simulation of the 21-cm signal. It runs in a fraction of a second, parallelises efficiently across a GPU and is differentiable through the Dark Ages (z ≥ 35). The code is publicly available at https://www.github.com/htjb/hyprfine.
ER -