Abstract

ACEVES, H.  and  VELAZQUEZ, H.. Preservation of Cuspy Profiles in Disk Galaxy Mergers. Rev. mex. astron. astrofis [online]. 2006, vol.42, n.1, pp.41-46. ISSN 0185-1101.

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.

Keywords : GALAXIES [INTERACTIONS]; GALAXIES [KINEMATICS AND DYNAMICS]; METHODS [N-BODY SIMULATIONS].

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