Publications (19)
Lithium in NGC 2243 and NGC 104
Misa Aoki, Francesca Primas, Luca Pasquini +3
Our aim was to determine the initial Li content of two clusters of similar metallicity but very different ages, the old open cluster NGC 2243 and the metal-rich globular cluster NG…
Silver and palladium help unveil the nature of a second r-process
Camilla Juul Hansen, Francesca Primas, Henrik Hartman +7
The rapid neutron-capture process, creating about half of the heaviest elements in the Solar System was believed to be unique. Many recent studies have shown that this does not inc…
HRMOS: A High-Resolution Multi-Object Spectrograph for the VLT
Laura Magrini, Thomas Bensby, Sofia Randich +174
This White Paper presents the scientific rationale and instrument concept for HRMOS (High-Resolution Multi-Object Spectrograph), a next-generation instrument proposed for the ESO V…
Are there any first-generation stars in globular clusters today?
Corinne Charbonnel, William Chantereau, Martin Krause +2
Several models compete to explain the abundance properties of stellar populations in globular clusters. One of the main constraints is the present-day ratio of first- and second-ge…
HST Observations of Heavy Elements in Metal-Poor Galactic Halo Stars
John J. Cowan, Christopher Sneden, Timothy C. Beers +6
We present new abundance determinations of neutron-capture elements Ge, Zr, Os, Ir, and Pt in a sample of 11 metal-poor (-3.1 <= [Fe/H] <= -1.6) Galactic halo giant stars, based on…
The Chemical Composition and Age of the Metal-Poor Halo Star BD +17^\circ 3248
John J. Cowan, Christopher Sneden, Scott Burles +8
We have combined new high-resolution spectra obtained with the Hubble Space Telescope (HST) and ground-based facilities to make a comprehensive new abundance analysis of the metal-…