339 citations · 487 across the 14 of their papers we have counts for
5 papers · 1 filter
Abundance analysis of three new extremely metal-poor stars, including one CEMP-s star
P. François, T. Suda, S. Wanajo +5
We report a detailed abundance analysis of three extremely metal-poor (EMP) stars thanks to spectra obtained with the high-dispersion spectrograph (HDS) at the Subaru telescope. Th…
KOALA, a new ATLAS9 database -- I. Model atmospheres, opacities, fluxes, bolometric corrections, magnitudes and colours
A. Mucciarelli, P. Bonifacio, C. Lardo
We present the KOALA database, a new set of LTE, line-blanketed model atmospheres calculated with the code ATLAS9, together with the corresponding Opacity Distribution Functions an…
Unveiling the nature of HE 0107-5240
E. Caffau, M. Steffen, P. Molaro +27
The vast majority of the most iron-poor stars in the Galaxy exhibit a strong carbon enhancement, with C/H ratios only about two orders of magnitude below solar. This unusual chemic…
The low Sr/Ba ratio on some extremely metal-poor stars
M. Spite, F. Spite, P. Bonifacio +3
It has been noted that, in classical extremely metal-poor (EMP) stars, the abundance ratio of Sr and Ba, is always higher than [Sr/Ba] = -0.5, the value of the solar r-only process…
Extremely metal-poor stars in SDSS fields
Piercarlo Bonifacio, Elisabetta Caffau, Patrick François +12
Some insight on the first generation of stars can be obtained from the chemical composition of their direct descendants, extremely metal-poor stars (EMP), with metallicity less tha…