136 citations · 287 across the 7 of their papers we have counts for
4 papers · 1 filter
The lithium content of the globular cluster NGC 6397
P. Bonifacio, L. Pasquini, F. Spite +16
We make use of high resolution, high signal-to-noise ratio spectra of 12 turn-off stars in the metal-poor globular cluster NGC 6397 to measure its lithium content. We conclude that…
An astrophysical oscillator strength for the SII 94.7 nm resonance line and S abundances in DLAs
P. Bonifacio, E. Caffau, M. Centurion +2
By using UV spectra for the O star HD 93521 taken with the ORFEUS II echelle spectrograph, we determine an ``astrophysical'' f value for the SII 94.7 nm line: f = 0.00498 (+0.00172…
Molecular hydrogen abundance in the dust-free damped Ly-alpha galaxy at z = 3.4
S. A. Levshakov, P. Molaro, M. Centurion +3
New results from the search for H2 absorption in the damped Ly-alpha galaxy at redshift z = 3.4 toward QSO 0000-2620 (z_em = 4.1) are reported. The high-resolution (lambda/Delta la…
Abundances of metal-weak thick-disc candidates
P. Bonifacio, M. Centurion, P. Molaro
High resolution spectra of 5 candidate metal-weak thick-disc stars suggested by Beers & Sommer-Larsen (1995) are analyzed to determine their chemical abundances. The low abundance…