Astrophysical: Galaxies

  • Publication
    OMEGA - OSIRIS Mapping of Emission-line Galaxies in A901/2 - I. Survey description, data analysis, and star formation and AGN activity in the highest density regions
    We present an overview of and first results from the OMEGA (OSIRIS Mapping of Emission-line Galaxies in the multicluster system A901/2) survey. The ultimate...
  • Publication
    On ageing star clusters using red supergiants independent of the fraction of interacting binary stars
    We use the Binary Population and Spectral Synthesis models to test the recent suggestion that red supergiants can provide an accurate age estimate of a coeval...
  • Publication
    On an analytical framework for voids: their abundances, density profiles and local mass functions
    We present a general analytical procedure for computing the number density of voids with radius above a given value within the context of gravitational...
  • Publication
    On biases in the predictions of stellar population synthesis models
    Sampling fluctuations in stellar populations give rise to dispersion in observables when a small number of sources contribute effectively to the observables...
  • Publication
    On emission-line spectra obtained from evolutionary synthesis models. I. Dispersion in the ionising flux and Lowest Luminosity Limits
    Stellar clusters with the same general physical properties (e.g., total mass, age, and star-formation mode) may have very different stellar mass spectra due to...
  • Publication
    On emission-line spectra obtained from evolutionary synthesis models. II. Scale-relations and the estimation of mass dependences
    Aims: In this paper we study the influence of the ionizing cluster mass on the emission line spectrum of H ii regions in order to determine the influence of low...
  • Publication
    On faint companions in the close environment of star-forming dwarf galaxies. Possible external star formation triggers?
    We have searched for companion galaxies in the close environment of 98 star-forming dwarf galaxies (SFDGs) from field and low density environments, using the...
  • Publication
    On Star Formation Rates and Star Formation Histories of Galaxies Out to z ~ 3
    We compare multi-wavelength star formation rate (SFR) indicators out to z ~ 3 in the GOODS-South field. Our analysis uniquely combines U to 8 μm photometry from...
  • Publication
    On surface brightness fluctuations: probabilistic and statistical bases. I. Stellar population and theoretical surface brightness fluctuations
    Aims: This work aims to provide a theoretical formulation of surface brightness fluctuations (SBF) in the framework of probabilistic population synthesis models...