Star Formation Histories of Dwarf Galaxies from the Colour-Magnitude Diagrams of Their Resolved Stellar Populations

Figure 12

Experiment of the helium effect on the SFH: reference fake population and model have the same metallicity 𝑍=0.004, but different helium content (𝑌=0.23 for the model and 𝑌=0.27 for the artificial data). The black dashed line is the input SFH. The red solid line is the recovered SFH.