Astrofísicas: Materia oscura

  • Publicación
    Impact of baryon physics on dark matter structures: a detailed simulation study of halo density profiles
    The back-reaction of baryons on the dark matter halo density profile is of great interest, not least because it is an important systematic uncertainty when...
  • Publicación
    Impact of internal bremsstrahlung on the detection of γ rays from neutralinos
    We present a detailed study of the effect of internal bremsstrahlung photons in the context of the minimal supersymmetric standard models and their impact on γ...
  • 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
    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...
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    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)...