• Publications
  • Influence
The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properti
We present and discuss new determinations of metallicity, rotation, age, kinematics, and Galactic orbits for a com- plete, magnitude-limited, and kinematically unbiased sample of 16 682 nearby F andExpand
  • 1,175
  • 305
  • PDF
First stars V - Abundance patterns from C to Zn and supernova yields in the early Galaxy
In the framework of the ESO Large Programme "First Stars", very high-quality spectra of some 70 very metal-poor dwarfs and giants were obtained with the ESO VLT and UVES spectrograph. These stars areExpand
  • 772
  • 170
  • PDF
The Geneva-Copenhagen survey of the solar neighbourhood III. Improved distances, ages, and kinematics
Context. Ages, chemical compositions, velocity vectors, and Galactic orbits for stars in the solar neighbourhood are fundamental test data for models of Galactic evolution. The Geneva-CopenhagenExpand
  • 389
  • 82
  • PDF
The Geneva-Copenhagen survey of the Solar neighbourhood II. New uvby calibrations and rediscussion of stellar ages, the G dwarf problem, age-metallicity diagram, and heating mechanisms of the disk
Context. Ages, metallicities, space velocities, and Galactic orbits of stars in the Solar neighbourhood are fundamental observational constraints on models of galactic disk evolution. UnderstandingExpand
  • 304
  • 61
  • PDF
First stars. I. The extreme r-element rich, iron-poor halo giant CS 31082-001 - Implications for the r-process site(s) and radioactive cosmochronology
We present a high-resolution (R = 75 000, S/N 500) spectroscopic analysis of the bright (V = 11.7), extreme halo giant CS 31082-001 ((Fe/H) = 2.9), obtained in an ESO-VLT Large Programme dedicated toExpand
  • 353
  • 51
  • PDF
First stars VIII. Enrichment of the neutron-capture elements in the early Galaxy
Context: Extremely metal-poor (EMP) stars in the halo of the Galaxy are sensitive probes of the production of the first heavy elements and the efficiency of mixing in the early interstellar medium.Expand
  • 210
  • 30
  • PDF
First stars VII - Lithium in extremely metal poor dwarfs
Context. The primordial lithium abundance is a key prediction of models of big bang nucleosynthesis, and its abundance in metal-poor dwarfs (the Spite plateau) is an important, independentExpand
  • 159
  • 25
  • PDF
First stars XII. Abundances in extremely metal-poor turnoff stars,and comparison with the giants
Context. The detailed chemical abundances of extremely metal-poor (EMP) stars are key guides to understanding the early chemical evolution of the Galaxy. Most existing data, however, treat giantExpand
  • 152
  • 22
  • PDF
First Stars II. Elemental abundances in the extremely metal-poor star CS 22949-037 ? A diagnostic of early massive supernovae
CS 22949-037 is one of the most metal-poor giants known ((Fe=H) 4:0), and it exhibits large overabundances of carbon and nitrogen (Norris et al.). Using VLT-UVES spectra of unprecedented quality,Expand
  • 148
  • 13
  • PDF
Detailed chemical composition of the open cluster IC 4651: The iron peak, α elements, and Li
We present a detailed chemical analysis of 22 stars along the colour-magnitude sequence of the intermediate-age (1.7 Gyr) open cluster IC 4651, based on high-resolution, high S/N ratio spectra fromExpand
  • 83
  • 11
  • PDF
...
1
2
3
4
5
...