Journal: Astronomy and Astrophysics

  • Publication
    Chemical abundances for the transiting planet host stars OGLE-TR-10, 56, 111, 113, 132, and TrES-1. Abundances in different galactic populations
    Aims.We used the UVES spectrograph (VLT-UT2 telescope) to obtain high-resolution spectra of 6 stars hosting transiting planets, namely for OGLE-TR-10, 56, 111...
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    Chemical abundances in Galactic planetary nebulae with Spitzer spectra
    We present new low-resolution (R ~ 800) optical spectra of 22 Galactic planetary nebulae (PNe) with Spitzer spectra. These data are combined with recent optical...
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    Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program. Galactic stellar populations and planets
    Context. We performed a uniform and detailed abundance analysis of 12 refractory elements (Na, Mg, Al, Si, Ca, Ti, Cr, Ni, Co, Sc, Mn, and V) for a sample of...
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    Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program. II. Cu, Zn, Sr, Y, Zr, Ba, Ce, Nd, and Eu
    Aims: To understand the formation and evolution of the different stellar populations within our Galaxy it is essential to combine detailed kinematical and...
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    Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program. IV. Carbon and C/O ratios for Galactic stellar populations and planet hosts
    Context. To understand the formation and composition of planetary systems, it is essential to have insights into the chemical composition of their host stars...
  • Publication
    Chemical abundances of 451 stars from the HARPS GTO planet search program. Thin disc, thick disc, and planets
    We present a uniform study of the chemical abundances of 12 elements (Si, Ca, Sc, Ti, V, Cr, Mn, Co, Ni, Na, Mg, and Al) derived from the spectra of 451 stars...
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    Chemical abundances of distant extremely metal-poor unevolved stars
    Context. The old Galactic halo stars hold the fossil record of the interstellar medium chemical composition at the time of their formation. Most of the stars...
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    Chemical abundances of late-type pre-main sequence stars in the σ Orionis cluster
    Context: The young σ Orionis cluster is an important location for studying the formation and evolution of stars, brown dwarfs, and planetary-mass objects. Its...
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    Chemical abundances of planet-host stars. Results for alpha and Fe-group elements
    In this paper, we present a study of the abundances of Si, Ca, Sc, Ti, V, Cr, Mn, Co, and Ni in a large set of stars known to harbor giant planets, as well as...