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S. Van Eck, S. Goriely, A. Jorissen +1
The standard model for the operation of the s-process in asymptotic giant branch (AGB) stars predicts that low-metallicity ([Fe/H] <= -1) AGB stars should exhibit large overabundan…
The Henize sample of S stars: IV. New symbiotic stars
S. Van Eck, A. Jorissen
The properties of the few symbiotic stars detected among the 66 binary S stars from the Henize sample are discussed. Two stars (Hen 18 and Hen 121) exhibit both a strong blue-viole…
The Henize sample of S stars. I. The technetium dichotomy
S. Van Eck, A. Jorissen
This paper is the first one in a series investigating the properties of the S stars belonging to the Henize sample (205 S stars with delta<-25 deg. and R<10.5) in order to derive t…
A CORAVEL radial-velocity monitoring of giant Ba and S stars: spectroscopic orbits and intrinsic variations
S. Udry, A. Jorissen, M. Mayor +1
This paper provides orbital parameters for 38 barium stars and 10 extrinsic S stars derived from a decade-long CORAVEL monitoring. Lower bounds on the orbital period (generally exc…
Insights into the formation of barium and Tc-poor S stars from an extended sample of orbital elements
A. Jorissen, S. Van Eck, M. Mayor +1
The set of orbital elements available for chemically-peculiar red giant (PRG) stars has been considerably enlarged thanks to a decade-long CORAVEL radial-velocity monitoring of abo…