Publication type: Non-refereed

  • Publication
    On the Primordial Helium Abundance and the Δ Y/Δ O Ratio
    We present a review on the determination of the primordial helium abundance, Y_p, based on the study of hydrogen and helium recombination lines in extragalactic...
  • Publication
    On the radial distribution of white dwarfs in the Galactic globular cluster omega Cen
    We present deep and accurate photometry (F435W, F625W, F658N) of the Galactic Globular Cluster omega Cen collected with the Advanced Camera for Surveys (ACS) on...
  • Publication
    On the Radial Velocity Distribution of the Carina dSph galaxy
    We present the radial velocity (RV) distribution of Carina dSph, obtained using low-, medium- and high-resolution spectroscopic data collected with FORS2 and...
  • Publication
    On the Relation between Radio and Non-Radio Elliptical Galaxies
    Empirical evidence suggests that elliptical galaxies hosting a radio source may not be different from normal non-radio ellipticals. To test this possibility, we...
  • Publication
    On the relation between the maximum stellar mass and the star cluster mass.
    Not Available
  • Publication
    On the relation of the Duvall phase function to the upper layers on the convection zone
    A method to obtain the Duvall phase function from the structure of a stellar model is presented. This can be a good tool for understanding the dependence of p...
  • Publication
    On the relations between X-ray binaries and binary pulsars
    Not Available
  • Publication
    On the relationship between dynamical masses from spectral features in emission and other mass estimators for a sample of local star-forming galaxies
    We have obtained both virial and dynamical masses of a sample oflocal star forming galaxies from the UCM survey. The rotational curvesmeasured using the...
  • Publication
    On the Relationship between Star Formation and Activity in Galaxies
    This thesis is made of three main parts. In the first one a sample of 55 galaxies with an active nucleus (Seyfert 1, Seyfert2 and LINERs) is analysed; these...