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Dark haloes in ellipticals and the tilt of the Fundamental Plane: some clues from self-consistent hydrodynamical simulations

Published online by Cambridge University Press:  19 May 2006

G.A. Mamon ,
F. Combes ,
C. Deffayet ,
B. Fort ,
J. Oñorbe ,
R. Domínguez-Tenreiro ,
H. Artal  and
A. Serna
J. Oñorbe
Affiliation:
Dpt. Física Teórica, C-XI, Universidad Autónoma de Madrid, 28039 Madrid, Spain
R. Domínguez-Tenreiro
Affiliation:
Dpt. Física Teórica, C-XI, Universidad Autónoma de Madrid, 28039 Madrid, Spain
H. Artal
Affiliation:
Dpt. Física Teórica, C-XI, Universidad Autónoma de Madrid, 28039 Madrid, Spain
A. Serna
Affiliation:
Dpt. Física y A.C., Universidad Miguel Hernández, 03206 Elche, Alicante, Spain
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Abstract

We have studied the structural and dynamical parameters of two samples of elliptical-like-objects (ELOs) formed in a set of self-consistent hydrodynamical simulations. ELO stellar masses, projected half- stellar mass radii, and stellar central l.o.s. velocity dispersions have been found to define a dynamical Fundamental Plane (FP), whose physical origin we report on.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 20: Mass Profiles and Shapes of Cosmological Structures , 2006 , pp. 275 - 276
Copyright
© EAS, EDP Sciences, 2006

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