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The Shapes and Ages of Elliptical Galaxies

  • Roelof S. De Jong
  • Roger L. Davies
Conference paper
Part of the International Astronomical Union / Union Astronomique Internationale book series (IAUS, volume 171)

Abstract

Normally elliptical galaxies are thought to be old, evolved systems, but recently a controversy has arisen over the age of ellipticals. Measurements by Gonzáles (1993, Ph.D. thesis, UCSC) show that the absorption indices of ellipticals span a range of values. Population synthesis models indicate that the Hβ index is a good age indicator and hence, contrary to normal perception, the ages of ellipticals seem to span a range of values.

Copyright information

© Springer Science+Business Media Dordrecht 1996

Authors and Affiliations

  • Roelof S. De Jong
    • 1
  • Roger L. Davies
    • 1
  1. 1.Department of PhysicsUniversity of DurhamDurhamUK

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