Extended Data Figure 10: Parameter estimation.
From: An absorption profile centred at 78 megahertz in the sky-averaged spectrum
Likelihood distributions for the foreground and 21-cm model parameters are shown for the H2 dataset. Contours are drawn at the 68% and 95% probability levels. The foreground polynomial coefficients (an) are highly correlated with each other, whereas the 21-cm model parameters are largely uncorrelated, except for the profile amplitude (A) and flattening (τ). Systematic uncertainties from the verification hardware cases are not presented here.
