Abundances from the Integrated Light of Globular Clusters and Galaxies
Abstract
It is currently impossible to determine the abundances and ages of the stellar populations of distant, dense stellar systems star by star. Therefore, methods to analyze the composite light of stellar systems are required. I review the modelling and analysis of integrated spectra of the stellar populations of individual globular clusters, globular cluster systems, early-type galaxies, and the bulges of spiral galaxies, with a focus on their abundances and abundance ratios. I conclude with a list of continuing difficulties in the modelling that complicate the interpretation of integrated spectra as well as a look ahead to new methods and new observations.
Cite
@article{arxiv.astro-ph/0307069,
title = {Abundances from the Integrated Light of Globular Clusters and Galaxies},
author = {S. C. Trager},
journal= {arXiv preprint arXiv:astro-ph/0307069},
year = {2007}
}
Comments
To appear in Carnegie Observatories Astrophysics Series, vol. 4: Origin and Evolution of the Elements, ed. A. McWilliam & M. Rauch (Cambridge: Cambridge University Press). 17 pages, 6 figures