Astrophysical: Dark matter

  • Talk
    Probing the early Universe with gravitational Wave Background
    We will review both theoretical and obsevational aspects of gravitational wave backgrounds of cosmological origin. We will present a classifcation of...
  • Publication
    Probing the low surface brightness outskirts of Milky Way dSphs: Sextans
    Faint dwarf galaxies such as those found around the Milky Way (MW) display the largest known dynamical mass-to-light ratios (up to several 100s M⊙/L⊙). However...
  • Publication
    Problems with the dark matter and dark energy hypotheses, and alternative ideas
    Two exotic elements have been introduced into the standard cosmological model: non-baryonic dark matter and dark energy. The success in converting a hypothesis...
  • Publication
    Prospects for dark matter observations in dwarf spheroidal galaxies with the Cherenkov Telescope Array Observatory
    The dwarf spheroidal galaxies (dSphs) orbiting the Milky Way are widely regarded as systems supported by velocity dispersion against self-gravity, and as prime...
  • Publication
    PSZ2 G282.28+49.94, a recently discovered analogue of the famous Bullet Cluster
    We present a detailed study of the gas and galaxy properties of the cluster PSZ2 G282.28+49.94 detected in the Planck all-sky survey. The intracluster medium...
  • Publication
    Reconstructing the mass accretion histories of nearby red nuggets with their globular cluster systems
    It is generally recognized that massive galaxies form through a combination of in-situ collapse and ex-situ accretion. The in-situ component forms early, where...
  • Publication
    Retuning radio astronomy for axion dark matter with neutron stars
    A model is constructed to predict the emission originating from axion-to-photon conversion in the strongly magnetized ultrarelativistic plasma of neutron stars...
  • News
    SAMUEL TING: “If we find complete agreement with the theory, we don’t learn anything”
    “I still remember the surface of the Moon seen from the Teide Observatory”. He will never forget the image: Sharp, close up, and brilliant. It was the first...
  • Publication
    Satellites around Massive Galaxies Since z ~ 2: Confronting the Millennium Simulation with Observations
    Minor merging has been postulated as the most likely evolutionary path to produce the increase in size and mass observed in the massive galaxies since z ~ 2. In...