Astrofísicas: Materia oscura

  • Publicación
    Implications for galaxy formation models from observations of globular clusters around ultradiffuse galaxies
    We present an analysis of Hubble Space Telescope observations of globular clusters (GCs) in six ultradiffuse galaxies (UDGs) in the Coma cluster, a sample that...
  • Publicación
    Implications of the Intriguing Constant Inner Mass Surface Density Observed in Dark Matter Halos
    It has long been known that the observed mass surface density of cored dark matter (DM) halos is approximately constant, independently of the galaxy mass (i.e...
  • Publicación
    Intracluster light: a luminous tracer for dark matter in clusters of galaxies
    The bulk of stars in galaxy clusters are confined within their constituent galaxies. Those stars do not trace the extended distribution of dark matter well as...
  • Publicación
    Introducing the LBT Imaging of Galactic Halos and Tidal Structures (LIGHTS) survey. A preview of the low surface brightness Universe to be unveiled by LSST
    We present the first results of the LBT Imaging of Galaxy Haloes and Tidal Structures (LIGHTS) survey. LIGHTS is an ongoing observational campaign with the 2 ×...
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    ion{H}{i} study of the warped spiral galaxy NGC 5055: a disk/dark matter halo offset?
    We present a study of the ion{H}{i} distribution and dynamics of the nearby spiral galaxy NGC 5055 based on observations with the Westerbork Synthesis Radio...
  • Charla
    Is Dark Matter the most valid explanation for the mass which is apparently missing in the Universe?
    Two main families of models explain that, at least in appearance, something like 90% of the mass of the Universe is still undetected. One (supported by an...
  • Charla
    Large scale structures and galaxy evolution in the COSMOS Survey
    The COSMOS survey is the largest high redshift galaxy evolution survey ever done -- imaging 2 square degrees with all major space-based and ground based...
  • Publicación
    Limiting the Abundance of LIGO/Virgo Black Holes with Microlensing Observations of Quasars of Finite Size
    We present a simple but general argument that strongly limits the abundance of primordial black holes (PBHs) (or other unknown population of compact objects)...
  • Publicación
    Local approximations to non-linear evolution of density fluctuations
    The way in which the evaluation of any moment of the mass distribution, as given by the Zeldovich (1970) approximation, may be reduced to the computation of an...