Astrophysical: Reionization

  • Publication
    (Re)Solving reionization with Lyα: how bright Lyα Emitters account for the z ≍ 2-8 cosmic ionizing background

    The cosmic ionizing emissivity from star-forming galaxies has long been anchored to UV luminosity functions. Here, we introduce an emissivity framework based on...

  • Publication
    A case study of hurdle and generalized additive models in astronomy: the escape of ionizing radiation

    The dark ages of the Universe end with the formation of the first generation of stars residing in primeval galaxies. These objects were the first to produce...

  • Publication
    An ionized superbubble powered by a protocluster at z = 6.5

    We show herein that a proto-cluster of Ly α emitting galaxies, spectroscopically confirmed at redshift 6.5, produces a remarkable number of ionizing continuum...

  • Publication
    Conditions for Reionizing the Universe with a Low Galaxy Ionizing Photon Escape Fraction

    We explore scenarios for reionizing the intergalactic medium with low galaxy ionizing photon escape fractions. We combine simulation-based halo mass–dependent...

  • Publication
    Constraining the Epoch of Reionization from the Observed Properties of the High-z Universe

    We combine observational data on a dozen independent cosmic properties at high-z with the information on reionization drawn from the spectra of distant luminous...

  • Publication
    Differences and similarities of stellar populations in LAEs and LBGs at z ∼ 3.4-6.8

    Lyman alpha emitters (LAEs) and Lyman break galaxies (LBGs) represent the most common groups of star-forming galaxies at high z, and the differences between...

  • Publication
    Erratum: The Pristine survey - VI. The first three years of medium-resolution follow-up spectroscopy of Pristine EMP star candidates
  • Publication
    Extragalactic science with EMIR-GTC

    EMIR is a wide-field, near-IR spectrograph currently under development for the Nasmyth focus of the Spanish 10.4m GTC at Canary Islands. EMIR will provide...

  • Publication
    Galactic wind X-ray heating of the intergalactic medium during the Epoch of Reionization

    The diffuse soft X-ray emissivity from galactic winds is computed during the Epoch of Reionization (EoR). We consider two analytic models, a pressure-driven...