35 citations · 79 across the 4 of their papers we have counts for
6 papers · 1 filter
Exploring giant barium stars: ratio and elemental abundances of carbon, nitrogen, and oxygen
M. P. Roriz, N. A. Drake, N. Holanda +4
Barium (Ba) stars belong to binary systems that underwent mass transfer events. As a consequence, their envelopes were enriched with material synthesized in the interiors of their…
High-resolution spectroscopic analysis of four unevolved barium stars
M. P. Roriz, N. Holanda, L. V. da Conceição +4
A classical Local Thermodynamic Equilibrium analysis, based on high-resolution spectroscopic data, is performed for a sample of three potential barium dwarf candidates and one star…
Tungsten in barium stars
M. P. Roriz, M. Lugaro, S. Junqueira +3
Classical barium stars are red giants that received from their evolved binary companions material exposed to the \textit{slow} neutron-capture nucleosynthesis, i.e., the -proces…
High-resolution spectroscopic analysis of four new chemically peculiar stars
M. P. Roriz, C. B. Pereira, S. Junqueira +3
We present detailed chemical compositions of four stars on the first-ascent red giant branch that are classified as chemically peculiar, but lack comprehensive analyses at high spe…
Barium stars as tracers of s-process nucleosynthesis in AGB stars I. 28 stars with independently derived AGB mass
B. Cseh, B. Világos, M. P. Roriz +7
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) compa…
Heavy elements in barium stars
M. P. Roriz, M. Lugaro, C. B. Pereira +4
New elemental abundances for the neutron-capture elements Sr, Nb, Mo, Ru, La, Sm, and Eu are presented for a large sample of 180 barium (Ba) giant stars, a class of chemically pecu…