Constraining Reionization Morphology and Source Properties with 21cm-Galaxy Cross-Correlation Surveys

Simulation-based inference from 21cm-Galaxy cross-power spectra Pietschke et al. 2026

Data

• spherically (1D) and cylindrically (2D) averaged power spectra
• supports 21cm auto, 21cm-Galaxy cross, and both
• Noise modeling based on Hutter et al. 2025

Inference models

• normalizing flows with Affine Coupling Layers or Rational Quadratic Splines based on EoRFLow
• conditional flow matching

Evaluation

• corner plots
• Tests of Accuracy with Random Points (TARP)
• mutual information
• Saliency analysis