Publication type: Refereed

  • Publication
    The metal-rich nature of stars with planets
    With the goal of confirming the metallicity ``excess'' present in stars with planetary-mass companions, we present in this paper a high-precision spectroscopic...
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    The Metallicity Distribution Functions of SEGUE G and K Dwarfs: Constraints for Disk Chemical Evolution and Formation
    We present the metallicity distribution function (MDF) for 24,270 G and 16,847 K dwarfs at distances from 0.2 to 2.3 kpc from the Galactic plane, based on...
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    The Metallicity Distribution of Intracluster Stars in Virgo
    We have used the Hubble Space Telescope's Advanced Camera for Surveys (ACS) to detect and measure ~5300 stars in a single intracluster field in the Virgo...
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    The metallicity distributions in high-latitudes with SDSS
    We present metallicities and their variations with different parameters for 36 high-latitude fields covering Galactic longitudes 0° l ⩽ 360°. The metallicities...
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    The metallicity gradient of M 33: chemical abundances of H ii regions
    Context: We present spectroscopic observations of a sample of 72 emission-line objects, including mainly H ii regions, in the spiral galaxy M 33. Spectra were...
  • Publication
    The metallicity of Palomar 1
    Palomar 1 is a peculiar Galactic globular cluster suspected of being younger than the bulk of Galactic halo objects. However, such a low age can be confirmed...
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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...
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    The metallicity-period-mass diagram of low-mass exoplanets
    The number of exoplanet detections continues to grow following the development of better instruments and missions. Key steps for the understanding of these...
  • Publication
    The methane ice rich surface of large TNO 2005 FY_9: a Pluto-twin in the trans-neptunian belt?
    Context: .The population of known large trans-neptunian objects (TNOs) is growing very fast and the knowledge of their physical properties is a key issue to...