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Session 46 - Old Stellar Populations Beyond The Milky Way.
Display session, Wednesday, June 11
South Main Hall,
We present a movie of the star formation history of the Large Magellanic Cloud (LMC) based on its stellar content. We use the present-day spatial distribution of blue and red supergiants, Cepheids, clusters and associations, and RR Lyrae stars to study the age structure and to identify areas of pronounced star formation as a function of time and position. Age estimates for different stellar populations are based on theoretical isochrones, evolutionary models, and recent calibrations of SWB types of clusters. De-reddening of the individual stars and clusters results in a large-scale extinction map for the LMC.
We discuss our results in terms of internal/external trigger mechanisms of star formation and different star formation modes.
Program listing for Wednesday