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VALLE, G; CIGNONI, M; SHORE, S. N
Astronomy and astrophysics (Berlin), 09/2005, Letnik: 440, Številka: 2Journal Article
This note presents theoretical color-magnitude diagrams (CMDs) and metallicity evolution for Galactic multipopulation models coupled to stellar evolution models for systems undergoing stripping and re-accretion of ambient material, called "open" systems in our recent studies (Valle et al. 2005, A&A, 435, 551). We show that the observables for such systems, in particular those related to the recovered star formation as a function of time, are ambiguous - systems with non-monotonic star formation rates can appear as either bursting systems or galaxies with a hiatus in the star formation.
