• News
    A huge stream of stars is discovered in the Coma cluster
    An international team of scientists, with participation by researchers at the Instituto de Astrofísica de Canarias (IAC), has discovered a very large, but thin...
  • Publication
    Accurate Inner Stellar Density Slopes from Projected Surface Densities in Galaxies
    The inner slope of the three-dimensional stellar density in dwarf galaxies ( ρ ' [ 0 ] ) is a sensitive probe of possible departures from the collisionless cold...
  • Talk
    Application of simulation-based inference to problems in astrophysics
    The next decade will see a deluge of new cosmological data that will enable us to accurately map out the distribution of matter in the local Universe, image...
  • Talk
    Axions and ALPs
    After introducing the concepts of axions and axion-like-particles (ALPs) and their signals, true axions which can be either much heavier or muchlighter than the...
  • Talk
    Beyond the Concordance Model with galaxy cluster mass profiles
    I present the recent results obtained using the updated version of MG-MAMPOSSt, a code that constrains modified gravity (MG) models viable at cosmological...
  • Publication
    C-19 and Hot, Wide Star Streams
    The C-19 star stream has the abundance characteristics of an unusually metal-poor globular cluster but kinematically is uncharacteristically hot and wide for a...
  • Publication
    Can Cuspy Dark-matter-dominated Halos Hold Cored Stellar Mass Distributions?
    According to the current concordance cosmological model, dark matter (DM) particles are collisionless and produce self-gravitating structures with a central...
  • Talk
    Constraints on Ultra-Light Dark Matter from Galactic Rotation Curves
    Bosonic ultra-light dark matter (ULDM) in the mass range m ~ $10^{-22} - 10^{-21} \rm eV$ has been invoked as a motivated candidate with new input for the small...
  • Talk
    Cosmic Microwave Background observations
    In the first part of this talk I will present a historical review of the CMB observations, one of the most powerful cosmological probes. Following the first...