Tipo de publicación: Con árbitro

  • Publicación
    On the Use of Field RR Lyrae as Galactic Probes. VIII. Early Formation of the Galactic Spheroid
    We introduce a new photometric catalog of RR Lyrae (RRL) variables (∼300,000) mainly based on data available in public datasets. We also present the largest and...
  • Publicación
    On the Use of Field RR Lyrae As Galactic Probes: IV. New Insights Into and Around the Oosterhoff Dichotomy
    We discuss the largest and most homogeneous spectroscopic data set of field RR Lyrae variables (RRLs) available to date. We estimated abundances using both high...
  • Publicación
    On the use of field RR Lyrae as Galactic probes: VII. Light curve templates in the LSST photometric system
    Context. The Vera C. Rubin Observatory will start operations in 2025. During its first two years, too few visits per target per band will be available, meaning...
  • 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)...
  • Publicación
    On the use of the Fourier transform to determine the projected rotational velocity of line-profile variable B stars
    Context. The Fourier transform method is a popular tool for deriving the rotational velocities of stars from their spectral line profiles. However, its domain...
  • Publicación
    On the Use of the Index N2 to Derive the Metallicity in Metal-poor Galaxies
    The N2 index ([N II] λ6584/Hα) is used to determine emission line galaxy metallicities at all redshifts, including high redshift, where galaxies tend to be...
  • Publicación
    On the validity of quasi-linear kinematic mean-field electrodynamics in astrophysical flows
    Mean-field theory in its kinematic form with the quasi-linear approximation is widely used for the modelling of the transport of weak magnetic fields in...
  • Publicación
    On the validity of the 630 nm Fe I lines for magnetometry of the internetwork quiet Sun
    Aims.The purpose of this work is to analyze the reliability of the magnetic field strengths inferred from the 630 nm pair of Fe i lines in internetwork quiet...
  • Publicación
    On the variable spectrum of HD 45677 (FS Canis Majoris)
    { We have studied high-resolution optical spectra of the peculiar B[e] star HD 45677 (FS CMa) observed during 3 nights in October 1995. The main results of our...