hyprfine: simulating the 21-cm signal from the Dark Ages through to the Epoch of Reionization on a GPU

arXiv:2610.01865 · astro-ph.IM, astro-ph.CO · Submitted 2026-10-01 · Read on arXiv

astro-ph.IM, astro-ph.CO

Submitted: 2026-10-01

Updated: 2026-10-02

Comments: Submitted to JOSS. Comments welcome!

Code: https://github.com/htjb/astroemu

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• 21-cm signal — 22× in this paper · explained in 1 episode
• 21-cm global signal — 4× in this paper · explained in 1 episode
• Bayesian Inference — 3× in this paper · explained in 5 episodes
• Core — 3× in this paper · explained in 2 episodes
• Accuracy — 2× in this paper · explained in 1 episode
• Matter Power Spectrum — 2× in this paper · explained in 2 episodes
• 21-cm Power Spectrum — 1× in this paper · explained in 1 episode
• Anisotropy — 1× in this paper · explained in 3 episodes
• Bayesian Framework — 1× in this paper · explained in 3 episodes
• Benchmarking — 1× in this paper · explained in 3 episodes
• Cosmic Linear Anisotropy Solving System — 1× in this paper
• Cosmic Microwave Background — 1× in this paper
• N-body simulations — 1× in this paper · explained in 2 episodes
• Trace — 1× in this paper · explained in 2 episodes

Sources

• Accelerating massive ensembles of ordinary differential equations
• BlackJAX: Composable Bayesian inference in JAX
• On Neural Differential Equations
• GRADSOLVE: fast exact gradients for ODE ensembles on GPUs

Related papers

• A signal dedispersion algorithm for imaging-based transient searches
• EXPO: a quantum leap in fast, wide-band X-ray polarimetry for astrophysics
• CHRONOS Science Program
• AVICA: A fully automated CASA pipeline for large volume VLBI data calibration
• Spectral Map Making with SPHEREx
• Long-Integration Magnetar Burst Observatory (LIMBO): Instrument Summary and Early FRB Rate Constraints