Astrofísicas: Cosmología

  • Publicación
    The metal-poor end of the Spite plateau. I. Stellar parameters, metallicities, and lithium abundances
    Context. The primordial nature of the Spite plateau is at odds with the WMAP satellite measurements, implying a primordial Li production at least three times...
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    The Metallicity of Pregalactic Globular Clusters: The Observational Consequences of the First Stars
    We explore a scenario in which metal-poor globular clusters (GCs) are enriched by the first supernovae in the universe. If the first stars in a 107 Msolar dark...
  • Publicación
    The miniJPAS survey: A preview of the Universe in 56 colors
    The Javalambre-Physics of the Accelerating Universe Astrophysical Survey (J-PAS) will scan thousands of square degrees of the northern sky with a unique set of...
  • Publicación
    The Nature and Size of the Optical Continuum Source in QSO 2237+0305
    From the peak of a gravitational microlensing high-magnification event in the A component of QSO 2237+0305, which was accurately monitored by the Gravitational...
  • Publicación
    The near-IR properties and continuum shapes of high redshift quasars from the Sloan Digital Sky Survey
    We present J-H-K' photometry for a sample of 45 high redshift quasars found by the Sloan Digital Sky Survey. The sample was originally selected on the basis of...
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    The Negative Baryon Acoustic Oscillation Shift in the Lyα Forest from Cosmological Simulations
    We present the first measurement of the Lyα forest baryon acoustic oscillations (BAO) shift parameter from cosmological simulations. In particular, we generate...
  • Publicación
    The Optical/IR Counterpart of the 1998 July 3 Gamma-Ray Burst and Its Evolution
    We imaged the X-ray error box of GRB 980703, beginning 22.5 hr after the gamma-ray event, in both the optical R and near-infrared H bands. A fading optical/IR...
  • Publicación
    The OTELO Project
    OSIRIS is the Spanish Day One instrument for the GTC 10.4-m telescope. OSIRIS is a general purpose instrument for imaging, low-resolution long slit and multi...
  • Publicación
    The OTELO Project
    OTELO, (OSIRIS Tunable Emission Line Object Survey), will survey emission line objects using OSIRIS tunable filters in selected atmospheric windows relatively...