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From Young to Old: Spectral Models for Star Cluster Systems

2003/10/21 by Uta Fritze -- v. Alvensleben, Alvensleben, Uta Fritze -- v., Peter Anders +3
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/0310597

2 pages, IAU JD06 Sydney 2003, to appear in ASP Conf. Ser., eds T. Bridges, D. Forbes

arxiv created 2003/10/21 · arxiv updated 2009/12/01

Abstract

Evolutionary synthesis models for star clusters of various metallicities including gaseous emission during the lifetime of the ionising stars are used to model star cluster systems comprising two populations: an old metal-poor globular clusters (GC) population similar to that of the Milky Way halo and a second GC population of arbitrary metallicity. We investigate the time evolution of color distributions and luminosity functions for the two GC populations in comparison with observations on E/S0 galaxies. We show that multi-passband data for GC populations give clues to the relative ages and metallicities of blue and red subpopulations and help constrain formation scenarios for their parent galaxies.

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