Astrofísicas: Técnicas

  • Publicación
    On the estimation of galaxy structural parameters: the Sérsic model
    This paper addresses some questions which have arisen from the use of the Sérsic r1/n law in modelling the luminosity profiles of early-type galaxies. The first...
  • Publicación
    On the HU Aquarii planetary system hypothesis
    In this paper, we investigate the eclipse timing of the polar binary HU Aquarii that has been observed for almost two decades. Recently, Qian et al. attributed...
  • Publicación
    On the interpolation of model atmospheres and high-resolution synthetic stellar spectra
    We present tests carried out on optical and infrared stellar spectra to evaluate the accuracy of different types of interpolation. Both model atmospheres and...
  • Publicación
    On the Inversion of Stokes Profiles with Local Stray-light Contamination
    Obtaining the magnetic properties of non-resolved structures in the solar photosphere is always challenging and problems arise because the inversion is carried...
  • Publicación
    On the Magnetic Field of Off-limb Spicules
    Determining the magnetic field related to solar spicules is vital for developing adequate models of these plasma jets, which are thought to play a key role in...
  • Publicación
    On the post-common-envelope central star of the planetary nebula NGC 2346
    The common-envelope phase is one of the most poorly understood phases of (binary) stellar evolution, in spite of its importance in the formation of a wide range...
  • Publicación
    On the Reliability of Microvariability Tests in Quasars
    Microvariations probe the physics and internal structure of quasars. Unpredictability and small flux variations make this phenomenon elusive and difficult to...
  • Publicación
    On the Use of Field RR Lyrae as Galactic Probes. I. The Oosterhoff Dichotomy Based on Fundamental Variables
    We collected a large data set of field RR Lyrae stars (RRLs) by using catalogs already available in the literature and Gaia DR2. We estimated the iron...
  • Publicación
    On the use of photometric redshifts for X-ray selected AGNs
    In this paper we present photometric redshift estimates for a sample of X-ray selected sources detected in the wide-field ( 2 deg^2), bright [ f_X(0.5{-}8 keV)...