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Cold Dark Matter Substructure and the Heating of Galactic Disks

Published online by Cambridge University Press:  26 May 2016

Andreea S. Font  and
Julio F. Navarro
Andreea S. Font
Affiliation:
Department of Physics and Astronomy, University of Victoria, Victoria, BC, V8P 1A1, Canada
Julio F. Navarro
Affiliation:
Department of Physics and Astronomy, University of Victoria, Victoria, BC, V8P 1A1, Canada

Abstract

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We investigate recent suggestions that substructure in cold dark matter (CDM) halos has potentially destructive effects on galactic disks. N-body simulations of disk/bulge models of the Milky Way, embedded in a dark matter halo with substructure similar to that found in cosmological simulations, show that tides from substructure halos play only a minor role in the dynamical heating of the stellar disk. This suggests that substructure might not preclude CDM halos from being acceptable hosts of thin stellar disks.

Type
Posters
Information
Symposium - International Astronomical Union , Volume 208: Astrophysical Supercomputing using Particle Simulations , 2003 , pp. 391 - 392
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

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