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

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

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

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