Publication type: Refereed

  • Publication
    Observational Evidence for Stellar Mass Black Holes
    Not Available
  • Publication
    Observational evidence for triaxiality, and for relatively recent star formation in the bulge of NGC 4736
    CCD maps are presented of the inner 1.4 kpc of NGC 4736 in the B, V, R, I and Z bands, along with an ellipticity analysis of these, in which the ellipticities...
  • Publication
    Observational evidence for two-component distributions describing solar magnetic bright points
    Context. High-resolution observations of the solar photosphere reveal the presence of fine structures, in particular the so-called Magnetic Bright Points (MBPs)...
  • Publication
    Observational hints of radial migration in disc galaxies from CALIFA
    Context. According to numerical simulations, stars are not always kept at their birth galactocentric distances but they have a tendency to migrate. The...
  • Publication
    Observational Limits on Terrestrial-sized Inner Planets around the CM Draconis System Using the Photometric Transit Method with a Matched-Filter Algorithm
    A light curve of the eclipsing binary CM Draconis has been analyzed for the presence of transits of planets of size >=2.5 Earth radii (RE), with periods of 60...
  • Publication
    Observational properties of accretion discs: Precessing and warped?
    Over the last 40 years, X-ray astronomy missions have revealed long-term, superorbital periods in a variety of X-ray binaries. These modulations can provide...
  • Publication
    Observational results for eight long-period comets observed far from the Sun
    Context. With this work we start a systematic analysis of the distant activity of several long-period comets in order to investigate the evolution of activity...
  • Publication
    Observational studies of Cepheid amplitudes. I. Period-amplitude relationships for Galactic Cepheids and interrelation of amplitudes
    Context: The dependence of amplitude on the pulsation period differs from other Cepheid-related relationships. Aims: We attempt to revise the period-amplitude...
  • Publication
    Observational studies of Cepheid amplitudes. II. Metallicity dependence of pulsation amplitudes
    Context. Physical and phenomenological properties (radius, luminosity, shape of the light curve, etc.) of Cepheids strongly depend on the pulsation period, with...