Astrofísicas: Galaxias enanas

  • Publicación
    Searching for Exoplanets Born Outside the Milky Way: VOYAGERS Survey Design
    Observations over the past few decades have found that planets are common around nearby stars in our Galaxy, but little is known about planets that formed...
  • Publicación
    Searching for Tidal Remnants in the Milky Way: Photometric Survey of Globular Clusters
    The picture of building the Milky Way halo from the merger of protogalactic fragments is considered the local manifestation of the hierarchical galaxy formation...
  • Publicación
    Segue 2 Recently Collided with the Cetus-Palca Stream: New Opportunities to Constrain Dark Matter in an Ultra-faint Dwarf
    Stellar streams in the Milky Way are promising detectors of low-mass dark matter (DM) subhalos predicted by ΛCDM. Passing subhalos induce perturbations in...
  • Charla
    Shedding light on the darkest galaxies: the Local Group dwarfs
    Crucial issues in cosmology and astrophysics are to understand the process of galaxy formation and evolution and the nature of what appears to be the dominant...
  • Charla
    Simulating cosmic reionization
    The first galaxies are thought to have started the reionization of the Universe, that is the transformation of the cosmic hydrogen from its initial neutral to...
  • Publicación
    Star Formation Histories of Ultra-faint Dwarf Galaxies: Environmental Differences between Magellanic and Non-Magellanic Satellites?
    We present the color-magnitude diagrams and star formation histories (SFHs) of seven ultra-faint dwarf galaxies: Horologium 1, Hydra 2, Phoenix 2, Reticulum 2...
  • Charla
    Star formation modes and population gradients in simulated dwarf galaxies
    Today we largely understand the large scale evolution of the Universe but we have only little knowledge of the small scale physics involved in forming and...
  • Charla
    Tales from the Milky Way's dwarf galaxies
    The immediate surroundings of our Milky Way galaxy are home to a number of dwarf galaxies, whose variety in shape, size, spatial location and velocity tells us...
  • Publicación
    The distance to the Pegasus Dwarf Irregular Galaxy: an open question
    The distance of the Pegasus Dwarf Irregular Galaxy is discussed in the light of new, deep photometry of the resolved stars taken in the bands V, R, and I of the...