77 citations · 156 across the 9 of their papers we have counts for
4 papers · 1 filter
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…
High speed stars: III. Detailed abundances and binary nature of the extreme speed star GHS143
E. Caffau, P. Bonifacio L. Monaco, L. Sbordone +7
The Gaia satellite has provided the community with three releases containing astrometrical and photometric data as well as by products, such as stellar parameters and variability i…
Chemical abundances of the metal-poor horizontal-branch stars CS 22186-005 and CS 30344-033
S. Caliskan, E. Caffau, P. Bonifacio +5
We report on a chemical-abundance analysis of two very metal-poor horizontal-branch stars in the Milky Way halo: CS 22186-005 ([Fe/H]=-2.70) and CS 30344-033 ([Fe/H]=-2.90). The an…
The photospheric solar oxygen project: II. Non-concordance of the oxygen abundance derived from two forbidden lines
Elisabetta Caffau, Hans-G. Ludwig, Jean-M. Malherbe +3
In the Sun, the two forbidden [OI] lines at 630 and 636 nm were previously found to provide discrepant oxygen abundances. aims: We investigate whether this discrepancy is peculiar…