Astrophysical: Galaxies

  • Publication
    The fate of high-redshift massive compact galaxies
    Massive high-redshift quiescent compact galaxies (nicknamed red nuggets) have been traditionally connected to present-day elliptical galaxies, often overlooking...
  • Publication
    The field surrounding NGC 7603: Cosmological or non-cosmological redshifts?
    We present new observations of the field surrounding the Seyfert galaxy NGC 7603, where four galaxies with different redshifts - NGC 7603 (z=0.029), NGC 7603B...
  • Publication
    The filament of ionized gas in the outskirt of M87
    We report on the filament of ionized gas found at the NE periphery of M87, the second brightest elliptical galaxy in the Virgo cluster. The object lies at 3.16...
  • Publication
    The filling factor of intergalactic metals at redshift z= 3
    Observations of quasar absorption-line systems reveal that the z= 3 intergalactic medium (IGM) is polluted by heavy elements down to H I optical depths τH I≪ 10...
  • Publication
    The Filling Factor-Radius Relation for 58 H II Regions across the Disk of NGC 6946
    Using the OSIRIS tunable narrowband imager on the 10.4 m GTC (La Palma), we have mapped the SAB(rs)cd galaxy NGC 6946 over a ~7.3 × 7.5 arcmin2 field in the...
  • 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: constraining the dust attenuation law of star-forming galaxies at z ≃ 5
    We present the results of a study investigating the dust attenuation law at z ≃ 5, based on synthetic spectral energy distributions (SEDs) calculated for a...
  • Publication
    The First Billion Years project: dark matter haloes going from contraction to expansion and back again
    We study the effect of baryons on the inner dark matter profile of the first galaxies using the First Billion Years simulation between z = 16 and 6 before...
  • Publication
    The First Billion Years project: Finding infant globular clusters at z = 6
    Aims: We aim to conduct an assessment of the demographics of substructures in cosmological simulations to identify low-mass stellar systems at high redshift...