Astrophysical: Galaxies

  • 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...
  • Publication
    On the accretion of a new group of galaxies on to Virgo - II. The effect of pre-processing on the stellar population content of dEs
    Using MUSE spectra, we investigate how pre-processing and accretion on to a galaxy cluster affect the integrated stellar population properties of dwarf early...
  • Publication
    On the accretion of a new group of galaxies on to Virgo: I. Internal kinematics of nine in-falling dEs
    Galaxy environment has been shown to play an important role in transforming late-type, star-forming galaxies to quiescent spheroids. This transformation is...
  • Publication
    On the accretion of a new group of galaxies onto Virgo - III. The stellar population radial gradients of dEs
    Using MUSE data, we investigate the radial gradients of stellar population properties (namely age, [M/H], and the abundance ratio of α elements [α/Fe]) for a...
  • Publication
    On the Anticorrelation Between Galaxy Light Concentration and X-ray-to-Optical Flux Ratio
    Active galactic nuclei (AGNs) play an important role in many aspects of modern cosmology, and of particular interest is the issue of the interplay between AGNs...