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Morphological evolution of cluster galaxies

Published online by Cambridge University Press:  06 October 2004

C. Mastropietro ,
B. Moore ,
J. Diemand ,
L. Mayer  and
J. Stadel
C. Mastropietro
Affiliation:
Institute for Theoretical Physics, University of Zürich, CH-8057 Zurich, Switzerland, e-mail: [email protected]
B. Moore
Affiliation:
Institute for Theoretical Physics, University of Zürich, CH-8057 Zurich, Switzerland, e-mail: [email protected]
J. Diemand
Affiliation:
Institute for Theoretical Physics, University of Zürich, CH-8057 Zurich, Switzerland, e-mail: [email protected]
L. Mayer
Affiliation:
Institute for Theoretical Physics, University of Zürich, CH-8057 Zurich, Switzerland, e-mail: [email protected]
J. Stadel
Affiliation:
Institute for Theoretical Physics, University of Zürich, CH-8057 Zurich, Switzerland, e-mail: [email protected]
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Abstract

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The recent discovery of hidden non-axysimmetric and disk-like structures in bright Virgo dwarf elliptical and lenticular galaxies indicates that they may have late-type progenitors. Using high resolution N-body simulations we follow the evolution of disk galaxies within a $\Lambda\textrm{CDM}$ cluster simulated with $10^7$ particles where the hierarchical growth and galaxy harassment are modelled self-consistently. Most of the galaxies undergo significant morphological transformation, even at the outskirts of the cluster, and move through the Hubble sequence from disks to spheroidals. The time evolution of the simulated galaxies is compared with unsharp-masked images from the VLT and we compare the kinematics of our models with the latest high resolution spectroscopic studies from the Keck telescope. We will also discuss the properties of diffuse intra-cluster light formed by tidal debris stripped away from the infalling disks by gravitational interactions.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUC195 , March 2004 , pp. 519 - 523
Copyright
© 2004 International Astronomical Union