Talk Title: Determining the Ages of Early-Type Galaxies
Abstract: Recent integrated light studies have indicated that many early-type galaxies contain a significant population of intermediate age stars. We investigate those results, beginning with the issue as to whether population models for the integrated spectra of star clusters produce sensible ages for these clusters, with an emphasis on recent results for 47 Tuc and for M67. We then consider new results on the integrated spectrum of the "Rosetta Stone" elliptical galaxy M32, from the nucleus out to a distance of 30 arcsec in radius. Particular emphasis is given to the question of whether consistent results are obtained using various Balmer lines, and whether an age and/or metallicity gradient is present in M32. Finally, results are presented for a sample of ~200 field and cluster early-type galaxies.
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