Astrophysical: Galaxies

  • Publication
    NICMOS Imaging of DRGs in the HDF-S: A Relation between Star Formation and Size at z ~ 2.5
    We present deep, high angular-resolution HST NICMOS imaging in the Hubble Deep Field South (HDF-S), focusing on a subset of 14 distant red galaxies (DRGs) at z...
  • Publication
    NICS-TNG infrared spectroscopy of NGC 1068: The first extragalactic measurement of [P II] and a new tool to constrain the origin of [Fe II] line emission in galaxies
    We report 0.9-1.4 mu m spectroscopic observations of NGC 1068 collected during the commissioning phase of the near infrared camera spectrometer (NICS) of the...
  • Publication
    nIFTy galaxy cluster simulations - I. Dark matter and non-radiative models
    We have simulated the formation of a galaxy cluster in a Λ cold dark matter universe using 13 different codes modelling only gravity and non-radiative...
  • Publication
    nIFTy galaxy cluster simulations - IV. Quantifying the influence of baryons on halo properties
    Building on the initial results of the nIFTy simulated galaxy cluster comparison, we compare and contrast the impact of baryonic physics with a single massive...
  • Publication
    NIHAO - XI. Formation of ultra-diffuse galaxies by outflows
    We address the origin of ultra-diffuse galaxies (UDGs), which have stellar masses typical of dwarf galaxies but effective radii of Milky Way-sized objects...
  • Publication
    NIHAO - XIV. Reproducing the observed diversity of dwarf galaxy rotation curve shapes in ΛCDM
    The significant diversity of rotation curve (RC) shapes in dwarf galaxies has recently emerged as a challenge to Λ cold dark matter (ΛCDM): in dark matter (DM)...
  • Publication
    NIHAO XXI: the emergence of low surface brightness galaxies
    The existence of galaxies with a surface brightness μ lower than the night sky has been known since three decades. Yet, their formation mechanism and emergence...
  • Publication
    NIHAO XXIV: rotation- or pressure-supported systems? Simulated Ultra Diffuse Galaxies show a broad distribution in their stellar kinematics
    In recent years, a new window on galaxy evolution opened, thanks to the increasing discovery of galaxies with a low-surface brightness, such as Ultra Diffuse...
  • Publication
    NIHAO-LG: the uniqueness of Local Group dwarf galaxies
    Recent observational and theoretical studies of the Local Group (LG) dwarf galaxies have highlighted their unique star-formation history, stellar metallicity...