21 cm intensity mapping 1bias modeling 1effective field theory 1halo occupation distribution 1normalizing flows 1simulation-based priors 1
From the 1 of 3 linked papers with an AI index.
3 papers
astro-ph.CO2026
Simulation-Based Priors for HI Bias from Halo Occupation Physics
Debanjan Sarkar, Simon Foreman
The paper introduces a simulation‑based method that learns the relationship between halo‑occupation‑model parameters for neutral hydrogen and effective‑field‑theory bias parameters…
astro-ph.CO2026
Introducing SAGUARO -- Simulating IGM Evolution and Environments At High Resolution: Setup and First Results
Christopher Cain, Aloha Das, Anson D'Aloisio +7
Small-scale physics in the intergalactic medium (IGM) plays a crucial role in shaping the progress of cosmic reionization and several high-redshift observables that probe this peri…
astro-ph.CO2025
Boosting HI-Galaxy Cross-Clustering Signal through Higher-Order Cross-Correlations
Eishica Chand, Arka Banerjee, Simon Foreman +1
After reionization, neutral hydrogen (HI) traces the large-scale structure (LSS) of the Universe, enabling HI intensity mapping (IM) to capture the LSS in 3D and constrain key cosm…