Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/55551

Title

Formation and evolution of dwarf elliptical galaxies: structural and kinematical properties

Author(s)

De Rijcke, S.;  Michielsen, D.;  Dejonghe, H.;  Zeilinger, W. W.;  Hau, G. K. T.

Abstract

We confront predictions of the currently popular theories for dE formation and evolution with the observed position of dEs in log LB vs. log σ, log LB vs. loge, log LB vs. log Ie, and log Re vs. log Ie diagrams and in the (log σ, log Re, log Ie) parameter space in which bright and intermediate-luminosity elliptical galaxies and bulges of spirals define a Fundamental Plane (FP). We show that the dE sequences in the various univariate diagrams are disjunct from those traced by bright and intermediate-luminosity elliptical galaxies and bulges of spirals. It appears that semi-analytical models (SAMs) that incorporate quiescent star formation with an essentially z-independent star-formation efficiency, combined with post-merger starbursts and the dynamical response after supernova-driven gas-loss, are able to reproduce the position of the dEs in the various univariate and bivariate diagrams.

Publication type

Conference paper

Source

Proceedings of the International Astronomical Union, Vol. 1, pp. 316-321

Publication year

2005

FOR Code(s)

0201 Astronomical and Space Sciences

Keyword(s)

Dwarf galaxies;  FP;  Fundamental parameters of galaxies;  Fundamental Plane;  Galaxy kinematics and dynamics

Publisher

Cambridge University Press

ISSN

1743-9213 (series ISSN)

Publisher URL

http://dx.doi.org/10.1017/S1743921305003984

Copyright

Copyright © 2005 International Astronomical Union.

Peer reviewed