30 April 2024 to 3 May 2024
Amsterdam, Hotel CASA
Europe/Amsterdam timezone

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

1 May 2024, 16:49
3m
Oxford, Hotel CASA

Oxford, Hotel CASA

Flashtalk with Poster Session B 4.2 Simulation-based inference

Speaker

Benedikt Schosser (Universität Heidelberg, ARI)

Description

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 optimal and extremely fast determination of the posteriors of astrophysical and cosmological parameters. The sensitivity to non-Gaussian information makes our method a promising alternative to the established power spectra.

Primary authors

Benedikt Schosser (Universität Heidelberg, ARI) Caroline Heneka (Universität Heidelberg, ITP) Tilman Plehn (Universität Heidelberg, ITP)

Presentation materials