Astrophysical: Galaxies

  • Publication
    The shapes of BCGs and normal ellipticals in nearby clusters
    We compare the apparent axial ratio distributions of the brightest cluster galaxies (BCGs) and normal ellipticals (Es) in our sample of 75 galaxy clusters from...
  • Publication
    The shapes of spiral arms in the S<SUP>4</SUP>G survey and their connection with stellar bars
    Context. Spiral galaxies are very common in the local Universe, but their formation, evolution, and interplay with bars remain poorly understood after more than...
  • Publication
    The shell elliptical galaxy NGC 2865: evolutionary population synthesis of a kinematically distinct core
    We report on the discovery of a rapidly corotating stellar and gas component in the nucleus of the shell elliptical NGC 2865. The stellar component extends ~ 0...
  • Publication
    The signature of high-velocity gas in the spectra of NGC 4151
    The multiwavelength emission spectrum and associated velocity field of the Seyfert prototype NGC 4151 is modeled. Since the thirties NGC 4151 has been the...
  • Publication
    The simultaneous low state spectral energy distribution of 1ES 2344+514 from radio to very high energies
    Context. BL Lacertae objects are variable at all energy bands on time scales down to minutes. To construct and interpret their spectral energy distribution (SED...
  • Publication
    The size and mass evolution of the massive galaxies over cosmic time
    Once understood as the paradigm of passively evolving objects, the discovery that massive galaxies experienced an enormous structural evolution in the last ten...
  • Publication
    The Size Evolution of Galaxies since z~3: Combining SDSS, GEMS, and FIRES
    We present the evolution of the luminosity-size and stellar mass-size relations of luminous (LV>~3.4×1010 h-270 Lsolar) and massive (M*>~3×1010 h-270 Msolar)...
  • Publication
    The size function of massive satellites from the R<SUB>e</SUB>-R<SUB>h</SUB> and M<SUB>star</SUB>-M<SUB>h</SUB> relations: constraining the role of environment
    In previous work, we showed that a semi-empirical model in which galaxies in host dark matter haloes are assigned stellar masses via a stellar mass-halo mass...
  • Publication
    The size-luminosity relation of local active galactic nuclei from interferometric observations of the broad-line region
    By using the GRAVITY instrument with the near-infrared (NIR) Very Large Telescope Interferometer (VLTI), the structure of the broad (emission-)line region (BLR)...