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Structural Evolution of Substructure

Published online by Cambridge University Press:  26 May 2016

Eric Hayashi  and
Julio F. Navarro
Eric Hayashi
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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The evolution of substructure in dark matter halos is investigated in a series of simulations of N = 105 satellite halos on elliptical orbits in the gravitational potential of a much larger host system. The bound mass of the satellite decreases with each pericentric passage and most of the mass is lost from the outer region of the satellite halo. We parameterize the change in its density profile by modifying the initial profile by a factor proportional to (1 + r-3), which results in reasonable fits to the mass profiles of tidally stripped subhalos.

Type
Posters
Information
Symposium - International Astronomical Union , Volume 208: Astrophysical Supercomputing using Particle Simulations , 2003 , pp. 403 - 404
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

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