RMxAA

Revista Mexicana de Astronomía y Astrofísica

ISSN: 3061-8649
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Keywords

galaxies: interactions -- galaxies: kinematics and dynamics -- methods: N-body simulations.
Astrophysics

How to Cite

Preservation of Cuspy Profiles in Disk Galaxy Mergers. (2006). Revista Mexicana De Astronomía Y Astrofísica, 42(1), 41-46. https://astronomia.unam.mx/journals/rmxaa/article/view/2006rmxaa..42...41a

Abstract

We carried out three self-consistent N-body simulations of galaxy mergers, with a cuspy dark matter profile, in order to study if the inner dark density slope is preserved in the remnants. In these simulations the progenitors include both a stellar disk and an intrinsic angular momentum for the halos, unlike previous similar studies. The mass-ratios of progenitor galaxies are about 1:1, 1:3, and 1:10. We find that the initial cuspy density profile of the dark halos is preserved in the remnants for the cases considered here.
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