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Elliptical Galaxies Since z ~ 1.5: The Evolution of The Fundamental Planes

Published online by Cambridge University Press:  01 August 2006

J. Oñorbe ,
R. Domínguez-Tenreiro ,
H. Artal  and
A. Serna
J. Oñorbe
Affiliation:
Dpto. de Física Teórica, C-XI. Universidad Autónoma de Madrid, Madrid, E-28049, Spain
R. Domínguez-Tenreiro
Affiliation:
Dpto. de Física Teórica, C-XI. Universidad Autónoma de Madrid, Madrid, E-28049, Spain
H. Artal
Affiliation:
Dpto. de Física Teórica, C-XI. Universidad Autónoma de Madrid, Madrid, E-28049, Spain
A. Serna
Affiliation:
Dpto. de Física y A.C., Universidad Miguel Hernández, Elche, Spain
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Abstract

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We use a set of hydrodynamical, self consistent simulations operating in the context of a concordance cosmological model where relaxed elliptical-like objects (ELOs) were identified at different redshifts. ELOs at different redshift are well described by the Sérsic (1968) function. We also obtain a good comparison with observational scaling relations. These results indicate that ELOs conform a homogeneous population at any redshift, except that high z ELOs tend to be more compact that their lower z counterparts. Also, scaling relations point to the rupture of the structural homology.

Keywords

methods: n-body simulationshydrodynamicsgalaxies: fundamental parametersgalaxies: elliptical and lenticularcDgalaxies: evolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S235: Galaxy Evolution Across the Hubble Time , August 2006 , pp. 420
Copyright
Copyright © International Astronomical Union 2007

References

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