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Optimal, fast, and robust inference of reionization-era cosmology with the 21cmPIE-INN

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arxiv 2401.04174 v3 pith:R6AKUPZH submitted 2024-01-08 astro-ph.CO astro-ph.GAastro-ph.IMhep-ph

classification astro-ph.COastro-ph.GAastro-ph.IMhep-ph
keywords fastinferencenetworkreionization-eraallowallowsalternativearray
verification ladder T0 review T1 audit T2 compute T3 formal
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Modern machine learning will allow for simulation-based inference from reionization-era 21cm observations at the Square Kilometre Array. Our framework combines a convolutional summary network and a conditional invertible network through a physics-inspired latent representation. It allows for an efficient and extremely fast determination of the posteriors of astrophysical and cosmological parameters, jointly with well-calibrated and on average unbiased summaries. The sensitivity to non-Gaussian information makes our method a promising alternative to the established power spectra.

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Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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  3. 21 cm Cosmology Sensitivity to Small-Scale Structure: Warm vs Neutrino-Interacting Dark Matter

    astro-ph.CO 2025-11 conditional novelty 6.0 of 10

    21 cm forecasts show HERA can detect νDM interactions down to ~3×10⁻³⁵ cm² (assuming zero modelling error) but cannot distinguish νDM from warm dark matter.

  4. CosmoUiT: A Vision Transformer-UNet Hybrid for Fast and Accurate Emulation of 21-cm Maps from the Epoch of Reionization

    astro-ph.CO 2025-10 conditional novelty 6.0 of 10

    A Vision Transformer-UNet hybrid emulates 3D EoR 21-cm cubes conditioned on reionization parameters, matching simulated large-scale power spectra with mild small-scale suppression.

  5. Simulation-based inference on warm dark matter from HERA forecasts

    astro-ph.CO 2024-12 conditional novelty 5.0 of 10

    Using neural ratio estimation on mock HERA power spectra, the authors forecast 95% lower bounds on the thermal WDM mass that exceed the 5.3 keV Lyman-alpha limit when the galaxy threshold mass Mturn is below 1e8 M_sun.

  6. Machine Learning and the SKA for Cosmic Dawn and the Epoch of Reionization

    astro-ph.IM 2026-07 accept novelty 2.5 of 10

    A multi-author overview of machine-learning algorithms proposed for instrument modelling, data analysis, simulation and inference in SKA Cosmic Dawn and Epoch of Reionization science.

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