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Stellar Populations Across cD Galaxies

Published online by Cambridge University Press:  01 December 2006

Susan I. Loubser ,
A.E. Sansom  and
I.K. Soechting
Susan I. Loubser
Affiliation:
Centre for Astrophysics, University of Central Lancashire, Preston, PR1 2HE, UK email: siloubser@uclan.ac.uk
A.E. Sansom
Affiliation:
Centre for Astrophysics, University of Central Lancashire, Preston, PR1 2HE, UK email: siloubser@uclan.ac.uk
I.K. Soechting
Affiliation:
Oxford Astrophysics, Department of Physics, University of Oxford, Oxford, OX1 3RH, UK
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Abstract

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We present preliminary long-slit spectroscopy of a sample of nearby cD galaxies recently observed with the William Herschel and GEMINI North and South Telescopes. So far, we have accumulated data for 27 cDs. More is being observed with the GEMINI telescopes, to create a statistically significant sample. Unresolved stellar populations will be used to investigate the history of when stars formed in these galaxies. Central and spatially resolved line strengths measured from these high signal-to-noise data will be interpreted via population modelling and used to derive luminosity weighted average ages and abundances. Comparison with previous results from other Hubble types of galaxies will highlight relative differences in their evolution.

Keywords

galaxies: elliptical and lenticularcDgalaxies: formationgalaxies: stellar content
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S241: Stellar Populations as Building Blocks of Galaxies , December 2006 , pp. 422 - 423
Copyright
Copyright © International Astronomical Union 2007

References

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