Astrofísicas: Materia oscura

  • Publicación
    The diverse density profiles of galaxy clusters with self-interacting dark matter plus baryons
    We present the first simulated galaxy clusters (M200 > 1014 M⊙) with both self-interacting dark matter (SIDM) and baryonic physics. They exhibit a greater...
  • Publicación
    The effect of baryons on the inner density profiles of rich clusters
    We use the `Evolution and assembly of galaxies and their environments' (EAGLE) cosmological simulation to investigate the effect of baryons on the density...
  • Publicación
    The effect of tides on the Fornax dwarf spheroidal galaxy
    Estimates of the mass distribution and dark-matter (DM) content of dwarf spheroidal galaxies (dSphs) are usually derived under the assumption that the effect of...
  • Charla
    The emergence of Low Surface Brightness Galaxies
    Low Surface Brightness galaxies are extremely dark matter dominated, faint objects hardly distinguishable from the night sky. In the last decade it has became...
  • Charla
    The ESO VISTA telescope and the VISTA Hemisphere Survey
    Survey operations with the VISTA telescope with it wide field near IR camera started in Feb 2010, following a science verification phase that started in Oct...
  • Publicación
    The First Billion Years project: dark matter haloes going from contraction to expansion and back again
    We study the effect of baryons on the inner dark matter profile of the first galaxies using the First Billion Years simulation between z = 16 and 6 before...
  • Publicación
    The Galaxy "Missing Dark Matter" NGC 1052-DF4 is Undergoing Tidal Disruption
    The existence of long-lived galaxies lacking dark matter represents a challenge to our understanding of how galaxies form. Here, we present evidence that...
  • Publicación
    The Ghost of a Dwarf Galaxy: Fossils of the Hierarchical Formation of the Nearby Spiral Galaxy NGC 5907
    We present an extragalactic perspective of an extended stellar tidal stream wrapping around the edge-on spiral galaxy NGC 5907. Our deep images reveal for the...
  • Publicación
    The Halo Mass Function Redshift Dependence
    It has recently been shown that the correct halo mass function high-mass behavior may be obtained by an appropriate treatment of the all-mass-at-center problem...