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Finding Ages for Old Stellar Populations

Published online by Cambridge University Press:  25 May 2016

Guy Worthey
Affiliation:
Department of Astronomy, University of Michigan, Ann Arbor, MI 48109-1090

Extract

We are far from being able to populate a histogram of star formation versus time for an elliptical galaxy based solely on observations of its spectrum, but the path toward such a dream is becoming more clear. Still, we are denied the easiest paths, and most of what I have been thinking about in the last six months are the obstacles rather than the opportunities in age determinations for old stellar populations, and Es in particular. The following list should illustrate what I mean.

Type
Elliptical Galaxies
Copyright
Copyright © Kluwer 1996 

References

Aaronson, M., Cohen, J. G., Mould, J. R., & Malkan, M. 1978, ApJ, 223, 824 CrossRefGoogle Scholar
Chariot, S., Worthey, G., & Bressan, A. 1996, ApJ, in press, Feb. 1 Google Scholar
Gonzalez, J. J. 1993, , Google Scholar
O'Connell, R. W. 1976, ApJ, 206, 370 CrossRefGoogle Scholar
Worthey, G. 1994, ApJS, 95, 107 CrossRefGoogle Scholar

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