Astrophysical: Intergalactic medium

  • Publication
    Chemical enrichment in cosmological, smoothed particle hydrodynamics simulations
    We present an implementation of stellar evolution and chemical feedback for smoothed particle hydrodynamics simulations. We consider the timed release of...
  • Publication
    Cosmic gas highways in C-EAGLE simulations
    Context. A substantial fraction of cosmic baryons is expected to hide in the form of diffuse warm-hot intergalactic medium (WHIM) at X-ray temperatures (T = 10...
  • Publication
    Density bounding of giant HII regions and the ionization of the diffuse interstellar medium
    Three different types of evidence are presented in favour of the hypothesis that the HII regions in disk galaxies with H-alpha luminosities greater than a...
  • Publication
    Detection of an ionized gas outflow in the extreme UV-luminous star-forming galaxy BOSS-EUVLG1 at z = 2.47
    BOSS-EUVLG1 is the most ultraviolet (UV) and Lyα luminous galaxy to be going through a very active starburst phase detected thus far in the Universe. It is...
  • Talk
    Faint double-peak Ha emission discovered in the halo of low redshift galaxies: is it produced by rogue intermediate mass black holes?
    With the aim of detecting cosmological gas accretion onto galaxies of the local Universe, we examined the Ha emission in the halo of the 164 galaxies in the...
  • Publication
    Fundamental physics with ESPRESSO: Precise limit on variations in the fine-structure constant towards the bright quasar HE 0515−4414
    The strong intervening absorption system at redshift 1.15 towards the very bright quasar HE 0515−4414 is the most studied absorber for measuring possible...
  • 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...
  • Publication
    Galaxies-intergalactic medium interaction calculation - I. Galaxy formation as a function of large-scale environment
    We present the first results of hydrodynamical simulations that follow the formation of galaxies to the present day in nearly spherical regions of radius ~20h...
  • Publication
    Gas accretion from the cosmic web feeding disk galaxies
    Disk galaxies in cosmological numerical simulations grow by accreting gas from the cosmic web. This gas reaches the external disk, and then spirals in dragged...