Modeling the Nonlinear Power Spectrum in Low-redshift HI Intensity Mapping

Zhixing Li, Laura Wolz, Hong Guo +2

We present a simulation-based framework to forecast the HI power spectrum on non-linear scales ($k\gtrsim 1\mathrm{Mp}{\mathrm{c}}^{-1}$), as measured by interferometer arrays like MeerKAT in…