Astrophysical: Early universe

  • Talk
    The dark and bright sides of massive early-type galaxies
    Massive early-type galaxies constitute an ideal test bed to probe our understanding of galaxy formation and evolution. Their high mass, spheroidal morphology...
  • Talk
    The dark side
    What's the dark matter made of? Do we have any idea of the kind of particle that should constitute ~85% of the matter content of the Universe? In this talk, I...
  • Publication
    The First Billion Years project: birthplaces of direct collapse black holes
    We investigate the environment in which direct-collapse black holes may form by analysing a cosmological, hydrodynamical simulation that is part of the First...
  • Publication
    The First Billion Years project: the impact of stellar radiation on the co-evolution of Populations II and III
    With the first metal enrichment by Population III (Pop III) supernovae (SNe), the formation of the first metal-enriched, Pop II stars becomes possible. In turn...
  • Talk
    The Hubble Constant: Relieving the Tension
    Twenty years ago, no one convincingly knew the age or the size of theUniverse to within a factor of two. Ten years ago, everyone agreed onthose same two numbers...
  • Publication
    The imprint of cosmological hydrogen recombination lines on the power spectrum of the CMB
    We explore the imprint of the cosmological hydrogen recombination lines on the power spectrum of the cosmic microwave background (CMB). In particular, we focus...
  • News
    The James Webb observes the first galaxies in the universe and discovers and “impostor”
    An international study, carried out by the James Webb Space Telescope (JWST) in which the Instituto de Astrofísica de Canarias (IAC) has participated, shows...
  • Publication
    The Metallicity of Pregalactic Globular Clusters: The Observational Consequences of the First Stars
    We explore a scenario in which metal-poor globular clusters (GCs) are enriched by the first supernovae in the universe. If the first stars in a 107 Msolar dark...
  • Publication
    The primordial Helium abundance
    The primordial abundance of 4He, YP, is one of the hottest themes in present-day astronomy, mostly due to its cosmological relevance. The disagreement between...