Publication type: Non-refereed

  • Publication
    Ultra-deep imaging of NGC1052-DF2 and NGC1052-DF4 to unravel their origins
    A number of scenarios have been proposed to explain the low velocity dispersion (and hence possible absence of dark matter) of the low surface brightness...
  • Publication
    Ultra-Deep Imaging: Structure of Disks and Haloes
    Deep imaging is a fundamental tool in the study of the outermost structures of galaxies. We review recent developments in ultra-deep imaging of galaxy disks and...
  • Publication
    Ultra-diffuse galaxies are smaller than Milky Way-like galaxies and more like dwarfs
    The effective or half-light radius has become a very popular choice for characterising galaxy size, but it measures the concentration of light within galaxies...
  • Publication
    Ultra-Diffuse Galaxies: a formation scenario
    A large number of Ultra-Diffuse Galaxies (UDGs) has been detected over the past few years, both in clusters and in isolation. UDGs have stellar masses typical...
  • Publication
    Ultra-sensitive Transition-edge Sensors for Far-Infrared Spectroscopy on SPICA
    Not Available
  • Publication
    Ultra-violet Variability of AGN
    Not Available
  • Publication
    Ultracool dwarf binaries
    We review here the multiplicity properties of ultracool dwarfs (spectral type later than M6) observed in three different environments and at three different...
  • Publication
    Ultracool Dwarf Science from Widefield Multi-Epoch Surveys
    Widefield surveys have always provided a rich hunting ground for the coolest stars and brown dwarfs. The single epoch surveys at the beginning of this century...
  • Publication
    Ultracool dwarfs in open clusters and star-forming regions
    In this contribution I review the results of the UKIRT Infrared Deep Sky Survey (UKIDSS) Galactic Clusters Survey (GCS) on the Initial Mass Function (IMF) and...