Astrophysical: Luminosity function

  • Publication
    Fossil groups origins. I. RX J105453.3+552102 a very massive and relaxed system at z ~ 0.5
    Context. The most accepted scenario for the origin of fossil groups is that they are galaxy associations in which the merging rate was fast and efficient. These...
  • Publication
    Fundamental parameters of nearby stars from the comparison with evolutionary calculations: masses, radii and effective temperatures
    The Hipparcos mission has made it possible to constrain the positions of nearby field stars in the colour-magnitude diagram with very high accuracy. These...
  • Publication
    Further evidence for a time-dependent initial mass function in massive early-type galaxies
    Spectroscopic analyses of gravity-sensitive line strengths give growing evidence towards an excess of low-mass stars in massive early-type galaxies (ETGs). Such...
  • Publication
    Furthering our knowledge of the solar neighborhood using WISE
    The launch of NASA's Wide-field Infrared Survey Explorer (WISE) in late 2009 ushered in an new era in the study of the solar neighborhood. Its mid-infrared...
  • Publication
    Gaia Early Data Release 3. The Gaia Catalogue of Nearby Stars
    Aims: We produce a clean and well-characterised catalogue of objects within 100 pc of the Sun from the Gaia Early Data Release 3. We characterise the catalogue...
  • Publication
    Galactic-Field Initial Mass Functions of Massive Stars
    Over the past years observations of young and populous star clusters have shown that the stellar initial mass function (IMF) appears to be an invariant...
  • Publication
    Galaxy stellar mass functions of different morphological types in clusters, and their evolution between z= 0.8 and 0
    We present the galaxy stellar mass function and its evolution in clusters from z˜ 0.8 to the current epoch, based on the WIde-field Nearby Galaxy-cluster Survey...
  • Talk
    Genuine spectral energy distribution of active galactic nuclei
    Spectral energy distributions (SEDs) of the central few tens of parsec region of some of the nearest active galactic nuclei (AGN) are presented. Peering into...
  • Publication
    HerMES: The Far-infrared Emission from Dust-obscured Galaxies
    Dust-obscured galaxies (DOGs) are an ultraviolet-faint, infrared-bright galaxy population that reside at z ~ 2 and are believed to be in a phase of dusty star...