Illustration of model parameter constraints that can be excepted from observational constraints that are like Sun+ (Table 3). We generated Sun+ synthetic data from parameters (black triangles) with the default yield set. We then generated ten realizations of such Sun+-like synthetic data, with errors σ_obs, and inferred Chempy parameter PDFs for each, using the default (green) and the alternative (red) yield set. The marginalized parameter distributions are plotted on the prior scale, with the absolute parameter values noted on the left side of each box in gray. The median and the 15.9 and 84.1 (2.3 and 97.7) PDF percentiles are shown in solid (transparent) lines for each parameter. The maximum posterior value of all ten MCMC runs is given in the bottom of the SFE box. The gray area indicates the limits of the parameter space. This figure illustrates that the Sun+ abundances already provide constraints on α_IMF and log ₁₀(N_Ia).