92 citations · 332 across the 9 of their papers we have counts for
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The design and performance of the Gaia photometric system
C. Jordi, E. Hoeg, A. G. A. Brown +32
The European Gaia astrometry mission is due for launch in 2011. Gaia will rely on the proven principles of ESA's Hipparcos mission to create an all-sky survey of about one billion…
Detailed Analysis of Nearby Bulgelike Dwarf Stars III. Alpha and Heavy-element abundances
Luciana Pompeia, Beatriz Barbuy, Michel Grenon
The present sample of nearby bulgelike dwarf stars has kinematics and metallicities characteristic of a probable inner disk or bulge origin. Ages derived by using isochrones give 1…
Detailed Analysis of Nearby Bulgelike Dwarf Stars II. Lithium Abundances
Luciana Pompeia, Beatriz Barbuy, Michel Grenon +1
Li abundances are derived for a sample of bulgelike stars with isochronal ages of 10-11 Gyr. These stars have orbits with pericentric distances, Rp, as small as 2-3 kpc and Zmax <…
Detailed Analysis of Nearby Bulge-like Dwarf Stars I. Stellar Parameters, Kinematics and Oxygen Abundances
Luciana Pompéia, Beatriz Barbuy, Michel Grenon
High resolution échelle spectra were obtained with the FEROS spectrograph at the 1.5m ESO telescope for 35 nearby bulge-like stars with metallicities in the range -0.8 [Fe/H…
The Variability of R,N,C Stars from HIPPARCOS and AAVSO Data
M. Grenon, J. A. Mattei, L. Eyer +1
Accurate photometry was obtained for all programme stars during the 3.3-year HIPPARCOS mission. The final observing programme included several hundred Mirae (M), semiregular (SR) l…
Problems encountered in the Hipparcos variable stars analysis
Laurent Eyer, Michel Grenon
Among the 17 volumes of results from the Hipparcos space mission, two are dedicated to variable stars. These two volumes arose from the work of two groups, one at the Geneva Observ…