Líneas de investigación: La Vía Láctea y el Grupo Local (MWLG)

La Vía Láctea y el Grupo Local (MWLG)
  • Publicación
    A New Einstein Cross Gravitational Lens of a Lyman-break Galaxy
    We report the study of an “Einstein Cross” configuration first identified in a set of HST images by Cerny et al. Deep spectroscopic observations obtained at the...
  • Publicación
    A new line list for the A2Σ+ -X2 Π electronic transition of OH
    A new line list for the A2Σ+ -X2 Π electronic transition of OH has been calculated. Line positions have been taken from the literature and refitted with Western...
  • Publicación
    A new linelist for the A3Π-X3Σ- transition of the NH free radical
    A new linelist for the A3Π-X3Σ- electronic transition of NH has been prepared using line positions from the literature and calculated line intensities. High...
  • Publicación
    A new method of measuring centre-of-mass velocities of radially pulsating stars from high-resolution spectroscopy
    We present a radial velocity analysis of 20 solar neighbourhood RR Lyrae and three Population II Cepheid variables. We obtained high-resolution, moderate-to...
  • Publicación
    A new reference catalogue for the very metal-poor Universe: +150 OB stars in Sextans A
    Local Group (LG) very metal-poor massive stars are the best proxy for the First Stars of the Universe and fundamental to modelling the evolution of early...
  • Publicación
    A new spectroscopic analysis of the massive O + O type binary HD 54662 AB
    HD 54662 AB is one of the three O + OB binaries known so far with orbital period longer than 1000 d, offering the opportunity to test scenarios of massive star...
  • Publicación
    A new visual - near-infrared diagnostic to estimate the metallicity of cluster and field dwarf stars
    We present a theoretical calibration of a new metallicity diagnostic based on the Strömgren index m1 and on visual - near-infrared (NIR) colors to estimate the...
  • Publicación
    A peculiar Of star in the Local Group galaxy IC 1613
    Context. Results from the theory of radiatively driven winds are nowadays incorporated in stellar evolutionary and population synthesis models, and are used in...
  • Publicación
    A photometric redshift of z = 1.8{+0.4}{-0.3} for the AGILE GRB 080514B
    The AGILE gamma-ray burst GRB 080514B is the first detected to have emission above 30 MeV and an optical afterglow. However, no spectroscopic redshift for this...