Stellar Populations and Mergers
Our Galaxy has four stellar populations: the disk, the thick disk, the bulge, and the halo. Did they form out of a single proto-Galactic nebula, with each population being but a different stage in the process? Or have at least some of them nothing to do with the origins and evolution of the others, as expected from mergers? In the context of this meeting, we will look particularly at the latter possibility, and will discuss briefly the data supporting this model.
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