Publication type: Non-refereed

  • Publication
    Ultra-deep imaging of M33: exploring its stellar halo with broad band imaging for the first time
    The star counting technique by the PAndAS survey reveals that M33 is undergoing a tidal interaction with its massive neighbor, M31. Due to this interaction, the...
  • Publication
    Ultra-deep imaging of nearby galaxy outskirts from the ground
    We show how present-day 10 meter class telescopes can provide broadband imaging 1.5-2 mag deeper than most previous results within a reasonable amount of time (...
  • 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...