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Dynamics of substructures in warm dark-mattercosmologies

Published online by Cambridge University Press:  20 January 2011

H. Wozniak ,
G. Hensler ,
B. Arnold ,
A. Knebe ,
C. Power  and
B. K. Gibson
B. Arnold
Affiliation:
Institut für Astronomie, Universität Wien, Türkenschanzstraße 17, 1180 Wien, Austria
A. Knebe
Affiliation:
Astrophysikalisches Institut Potsdam, An der Sternwarte 16, 14482 Potsdam, Germany
C. Power
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn 3122, Victoria, Australia
B. K. Gibson
Affiliation:
Centre for Astrophysics, University of Central Lancashire, Preston PR1 2HE, UK
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Abstract

We performed cosmological simulations based upon both a cold dark matter (CDM) and a warmdark matter (WDM) model. The focus of our investigations lies with selected spatial andkinematic properties of substructure halos (subhalos) orbiting withinhost halos, that form in both dark-matter cosmologies. We aim at using the dynamics of thesubhalos as a probe of the respective cosmology.

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