Star Formation Histories of Dwarf Galaxies from the Colour-Magnitude Diagrams of Their Resolved Stellar Populations
Figure 18
Effect of distance on the resolution of individual stars and on the corresponding lookback time for the SFH. CMD in absolute magnitude and colour of systems observed with the HST/WFPC2 and analysed with the same techniques, but at different distances; from (a) to (c): 50 Kpc (LMC bar), 5.1 Mpc (NGC1705), and 18 Mpc (IZw18); (b) also shows stellar evolution tracks from [23] for reference: red lines refer to low-mass stars, green lines to intermediate mass stars, and blue lines to massive stars.
