meer21cm is a publicly available Python toolkit for post-calibration analysis of single-dish HI intensity mapping surveys, achieving percent-level accuracy on simulated MeerKAT data in the k range 0.02-0.2 h/Mpc.
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During reionization, the 21cm brightness field has a zero-linear-bias epoch, and if analyses reach its sampling noise floor, local primordial non-Gaussianity constraints could improve by roughly an order of magnitude.
Overview of HI modeling methods finds consistency in cosmic HI density but systematic differences in HI-halo mass relation shape and redshift evolution.
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HI Simulations for Cosmology with the SKA Observatory
Overview of HI modeling methods finds consistency in cosmic HI density but systematic differences in HI-halo mass relation shape and redshift evolution.