2 papers
astro-ph.CO2026
Effective bias expansion for circumventing 21 cm foregrounds
Wenzer Qin, Kai-Feng Chen, Katelin Schutz +1
The 21 cm line of neutral hydrogen is a promising probe of the Epoch of Reionization (EoR) but suffers from contamination by spectrally smooth foregrounds, which obscure the large-…
astro-ph.CO2025
Supersizing hydrodynamical simulations of reionization using perturbative techniques
Wenzer Qin, Katelin Schutz, Olivia Rosenstein +2
We show that perturbative techniques inspired by effective field theory (EFT) can be used to "paint on" the 21~cm field during reionization using only the underlying linear density…