3 papers
astro-ph2002
High-resolution re-simulations of massive DM halos and the Fundamental Plane of galaxy clusters
B. Lanzoni, A. Cappi, L. Ciotti
Pure N-body high-resolution re-simulations of 13 massive dark matter halos in a Lambda-CDM cosmology are presented. The resulting sample is used to investigate the physical origin…
astro-ph1999
Dark Matter Halos Merging Trees: the Merging Cell Model in a CDM Cosmology
Barbara Lanzoni, Gary A. Mamon, Bruno Guiderdoni
We have constructed the merging history of dark matter halos in a SCDM cosmology, by means of a the {``Merging Cell Model''} (Rodrigues & Thomas 1996). It is based on the linear th…
astro-ph1996
Stellar systems following the R^{1/m} luminosity law. II Anisotropy, velocity profiles, and the FP of elliptical galaxies
L. Ciotti, B. Lanzoni
We study the dynamical properties of spherical galaxies with surface luminosity profile described by the R^{1/m}-law, in which a variable degree of orbital anisotropy is allowed. T…