The cosmic 21-cm signal observed by the Square Kilometre Array (SKA) will open a new window to the early Universe. 21-cm fluctuations encode the properties of the unseen first galaxies as well as physical cosmology. I will showcase our fully Bayesian inference framework, capable of forward-modeling 4D realizations of cosmic 21-cm lightcones. I will demonstrate how this framework was...
Total-power radiometry with individual meter-wave antennas is a potentially effective way to study the Cosmic Dawn ($z\sim20$) through measurement of the sky brightness arising from the $21$~cm transition of neutral hydrogen, provided this can be disentangled from much stronger Galactic and extra-galactic foregrounds. In the process, measured spectra of integrated sky brightness temperature...
Detection of signals from the Epoch of Reionization (EoR) is one of the new frontiers in observational cosmology. However, predictions of the ability of 21-cm experiments to discriminate EoR signal models are typically limited by the simplicity of data models, in which the effects of foregrounds and characteristics of the instrument are often neglected. Current experiments have shown that...
