Bibcode
González-García, A. C.; van Albada, T. S.
Referencia bibliográfica
Monthly Notices of the Royal Astronomical Society, Volume 361, Issue 3, pp. 1043-1054.
Fecha de publicación:
8
2005
Número de citas
27
Número de citas referidas
27
Descripción
We perform N-body simulations of encounters between spherical systems
surrounded by a spherical halo. Following a preceding paper with a
similar aim, the initial systems include a spherical Jaffe model for the
luminous matter and a Hernquist model for the halo. The merger remnants
from this sample are mainly slowly rotating, prolate spheroids with a
radially anisotropic velocity distribution. The results are compared
with real-life ellipticals and with the models without halo in Paper I.
We argue that elliptical galaxies with evidence of dark matter could be
formed in the field via a merger of spheroids surrounded by a dark
matter halo, while ellipticals with no evidence of dark matter might be
formed via a merger of two spheroids in a cluster.