Astrophysical: Galaxies

  • Publication
    The Thick Disk in the Galaxy NGC 4244 from S4G Imaging
    If thick disks are ubiquitous and a natural product of disk galaxy formation and/or evolution processes, all undisturbed galaxies that have evolved during a...
  • Publication
    The three hundred project: mapping the matter distribution in galaxy clusters via deep learning from multiview simulated observations
    A galaxy cluster as the most massive gravitationally bound object in the Universe, is dominated by dark matter, which unfortunately can only be investigated...
  • Publication
    The tidally disturbed luminous compact blue galaxy Mkn 1087 and its surroundings
    We present new broad-band optical and near-infrared CCD imaging together with deep optical intermediate-resolution spectroscopy of Mkn 1087 and its surrounding...
  • Publication
    The Tilt of the Fundamental Plane: Three-Quarters Structural Nonhomology, One-Quarter Stellar Population
    The variation of the mass-to-light M/L ratios of early-type galaxies as a function of their luminosities L is investigated. It is shown that the tilt β=0.27 (in...
  • Publication
    The trace of a substantial assembly of massive E-S0 galaxies at 0.8 < z < 1.5 in galaxy number counts
    K-band galaxy number counts (GNCs) exhibit a slope change at K ˜ 17.5 mag not present in optical bands. To unveil the nature of this feature, we have derived...
  • Publication
    The TRGB Distance to the Second Galaxy “Missing Dark Matter”: Evidence for Two Groups of Galaxies at 13.5 and 19 Mpc in the Line of Sight of NGC 1052
    A second galaxy “missing dark matter” (NGC 1052-DF4) has been reported recently. Here we show, using the location of the tip of the red giant branch (TRGB)...
  • Publication
    The triggering mechanism and properties of ionized outflows in the nearest obscured quasars
    We have identified ionized outflows in the narrow-line region of all but one Sloan Digital Sky Survey type 2 quasars (QSO2) at z≲0.1 (20/21, detection rate 95...
  • Publication
    The truncation of the disk of NGC 4565. Detected up to z = 4 kpc, with star formation, and affected by the warp
    Context. The hierarchical model of galaxy formation suggests that galaxies are continuously growing. However, our position inside the Milky Way prevents us from...
  • Publication
    The Tucana dwarf spheroidal galaxy: not such a massive failure after all
    Context. Isolated local group (LG) dwarf galaxies have evolved most or all of their life unaffected by interactions with the large LG spirals and therefore...