Astrophysical: Early universe

  • Talk
    Stellar black holes at the dawn of the Universe: cosmological implications
    The so called "dark ages" of the universe began about 400.000 years after the Big Bang as matter cooled down and space became filled with neutral hydrogen for...
  • Publication
    The abundance of clustered primordial black holes from quasar microlensing
    While elementary particles are the favored candidate for the elusive dark matter, primordial black holes (PBHs) have also been considered to fill that role...
  • Publication
    The ACS LCID Project. IX. Imprints of the Early Universe in the Radial Variation of the Star Formation History of Dwarf Galaxies
    Based on Hubble Space Telescope observations from the Local Cosmology from Isolated Dwarfs project, we present the star formation histories, as a function of...
  • Publication
    The ACS LCID Project. V. The Star Formation History of the Dwarf Galaxy LGS-3: Clues to Cosmic Reionization and Feedback
    We present an analysis of the star formation history (SFH) of the transition-type (dIrr/dSph) Local Group galaxy LGS-3 (Pisces) based on deep photometry...
  • Publication
    The ACS LCID Project. X. The Star Formation History of IC 1613: Revisiting the Over-cooling Problem
    We present an analysis of the star formation history (SFH) of a field near the half-light radius in the Local Group dwarf irregular galaxy IC 1613 based on deep...
  • Publication
    The ACS LCID Project. XI. On the Early Time Resolution of SFHs of Local Group Dwarf Galaxies: Comparing the Effects of Reionization in Models with Observations
    The analysis of the early star formation history (SFH) of nearby galaxies, obtained from their resolved stellar populations, is relevant as a test for...
  • Publication
    The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: constraints on the time variation of fundamental constants from the large-scale two-point correlation function
    We obtain constraints on the variation of the fundamental constants from the full shape of the redshift-space correlation function of a sample of luminous...
  • Publication
    The Complete CEERS Early Universe Galaxy Sample: A Surprisingly Slow Evolution of the Space Density of Bright Galaxies at z ∼ 8.5–14.5
    We present a sample of 88 candidate z ∼ 8.5–14.5 galaxies selected from the completed NIRCam imaging from the Cosmic Evolution Early Release Science survey...
  • Talk
    The Cosmic NeuTRIVIA game
    In this talk, we shall review the impact of the neutrino properties on the different cosmological observables. We shall also present the latest cosmological...