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Abundance Ratios in Dwarf Elliptical Galaxies

Published online by Cambridge University Press:  21 March 2017

Seyda Sen ,
Reynier F. Peletier ,
Elisa Toloba  and
Jaco J. Mentz
Seyda Sen
Affiliation:
Faculty of Science, Ataturk University, 25030, Erzurum, Turkey email: senseydastar@gmail.com Kapteyn Astronomical Institute, University of Groningen, P. O. Box 800, 9700 AV, Groningen, The Netherlands
Reynier F. Peletier
Affiliation:
Kapteyn Astronomical Institute, University of Groningen, P. O. Box 800, 9700 AV, Groningen, The Netherlands
Elisa Toloba
Affiliation:
UCO/Lick Observatory, University of California, Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA Physics Department, Texas Tech University, Box 41051, Lubbock, TX 79409-1051, USA
Jaco J. Mentz
Affiliation:
Kapteyn Astronomical Institute, University of Groningen, P. O. Box 800, 9700 AV, Groningen, The Netherlands Center for Space Research, North-west University, Potchefstroom 2520, South Africa
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Abstract

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The aim of this study is to determine abundance ratios and star formation histories (SFH) of dwarf ellipticals in the nearby Virgo cluster. We perform a stellar population analysis of 39 dEs and study them using index-index and scaling relations. We find an unusual behaviour where [Na/Fe] is under-abundant w.r.t. solar while [Ca/Fe] is over-abundant.

Keywords

galaxies: dwarf ellipticalstellar populationsabundance ratiosindividual (Virgo)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S321: Formation and Evolution of Galaxy Outskirts , March 2016 , pp. 269
Copyright
Copyright © International Astronomical Union 2017 

References

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