Context. Barium (Ba) stars are dwarf and giant stars enriched in elements heavier than iron
produced by the slow neutron-capture process (s process). These stars belong to binary …

Context. Barium (Ba) stars are polluted by material enriched in the slow neutron capture (s-
process) elements synthesised in the interior of their former asymptotic giant branch (AGB) …

Context. Barium (Ba) stars are characterised by an abundance of heavy elements made by
the slow neutron capture process (s-process). This peculiar observed signature is due to the …

Barium stars are one of the important probes to understand the origin and evolution of slow
neutron-capture process elements in the Galaxy. These are extrinsic stars, where the …

Barium (Ba) stars are chemically peculiar stars that display in their atmospheres signatures
of the slow neutron-capture (s-process) mechanism that operates within asymptotic giant …

Context. Barium stars are s-process enriched giants. They owe their chemical peculiarities to
a past mass transfer phase. During this phase they were polluted by their binary companion …

Context. Our understanding of the s-process nucleosynthesis in asymptotic giant branch
(AGB) stars is incomplete. AGB models predict, for example, large overabundances of lead …

Barium stars are extrinsic Asymptotic Giant Branch (AGB) stars. They present the s-
enhancement characteristic for AGB and post-AGB stars, but are in an earlier evolutionary …

Context. Results from observations report a growing number of metal-poor stars showing an
abundance pattern midway between the s-and r-processes. These so-called r/s-stars raise …

Aims. We explore modifications to the current scenario for the slow neutron-capture process
(the s-process) in asymptotic giant branch (AGB) stars to account for the Pb deficiency …