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The shapes and ages of elliptical galaxies

Abstract:

In this paper we investigate the relation between the detailed isophotal shape of elliptical galaxies and the strength of the Hβ absorption in their spectra. We find that discy galaxies have higher Hβ indices. Stellar population synthesis models show that the Hβ line is a good age indicator, hence discy galaxies tend to have lower mean ages than boxy galaxies. We show that the observed trend can be brought about by a contaminating young population, which we associate with the discy component....

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Role:
Author
Journal:
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume:
285
Issue:
1
Pages:
L1-L4
Publication date:
1997-02-11
ISSN:
0035-8711
URN:
uuid:bfdeb72f-e24d-44e9-976e-304279d19345
Source identifiers:
20554
Local pid:
pubs:20554

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