Astrophysical: N-body simulations

  • Talk
    Andromeda II: a merger remnant or a product of tidal stirring
    I will present an evolutionary model for the origin of Andromeda II, a dSph satellite of M31, involving a merger between two disky dwarf galaxies than explains...
  • Publication
    CGCG 480-022: A Distant Lonesome Merger?
    We present a complete analysis, which includes morphology, kinematics, stellar populations, and N-body simulations, of CGCG 480-022, the most distant (cz=14,317...
  • Talk
    Cosmology on small scales: the structure of (mostly) dark matter halos
    The standard model of cosmology -- the ``Lambda cold dark matter'' model -- is based on the idea that the dark matter is a collisionless elementary particle...
  • Publication
    Dark matter halo concentrations in the Wilkinson Microwave Anisotropy Probe year 5 cosmology
    We use a combination of three large N-body simulations to investigate the dependence of dark matter halo concentrations on halo mass and redshift in the...
  • Publication
    Encounters between spherical galaxies - I. Systems without a dark halo
    We report here on a survey of N-body simulations of encounters between spherical galaxies. Initial systems are isotropic Jaffe models. Different sets of mass...
  • Publication
    Encounters between spherical galaxies - II. Systems with a dark halo
    We perform N-body simulations of encounters between spherical systems surrounded by a spherical halo. Following a preceding paper with a similar aim, the...
  • Publication
    Erratum: Dark matter halo concentrations in the Wilkinson Microwave Anisotropy Probe year 5 cosmology
    Not Available
  • Talk
    Evolution of barred galaxies. A model for the Milky Way bar and bulge in this context
    Among the different effects of secular evolution of galaxies we find how bars influence enormously their host galaxies. For many years now, it is known how the...
  • Publication
    Galaxies-intergalactic medium interaction calculation - I. Galaxy formation as a function of large-scale environment
    We present the first results of hydrodynamical simulations that follow the formation of galaxies to the present day in nearly spherical regions of radius ~20h...