activity
20172026
most citedBarium & related stars and their white-dwarf companions I. Giant stars

110 citations · 443 across the 18 of their papers we have counts for

collaborators

17 papers

astro-ph.SR2026

Stellar nucleosynthesis in the era of large surveys: S-process polluted binaries in GALAH DR4

A. Escorza, S. Vitali, D. Godoy-Rivera +11

Binary interactions during the AGB phase can lead to the formation of chemically peculiar stars with overabundances of s-process elements. Only a few hundreds of these stars have b…

astro-ph.SR2025★ 2 cited

Technetium-rich M Stars: Prime diagnostics of recent third dredge-up events on the Asymptotic Giant Branch

Shreeya Shetye, Sophie Van Eck, Alain Jorissen +6

Context. Technetium (Tc)-rich M-type stars have been known for over 45 years. However, the origin of Tc in these stars, particularly its detection without the concomitant detection…

astro-ph.SR2023★ 10 cited

Does the i-process operate at nearly solar metallicity?

D. Karinkuzhi, S. Van Eck, S. Goriely +7

A sample of 895 s-process-rich candidates has been found among the 454180 giant stars surveyed by LAMOST at low spectral resolution (R~1800). In a previous study, taking advantage…

astro-ph.SR2022★ 17 cited

Spinning up the Surface: Evidence for Planetary Engulfment or Unexpected Angular Momentum Transport?

Jamie Tayar, Facundo D. Moyano, Melinda Soares-Furtado +15

In this paper, we report the potential detection of a nonmonotonic radial rotation profile in a low-mass lower-luminosity giant star. For most low- and intermediate-mass stars, the…

astro-ph.SR2022★ 2 cited

Discovery of an optical cocoon tail behind the runaway HD 185806

Z. T. Spetsieri, P. Boumis, A. Chiotellis +6

Studies on the circumstellar structures around evolved stars provide vital information on the evolution of the parent star and the properties of the local interstellar medium. In t…

astro-ph.SR2022

Tc-rich M stars: platypuses of low-mass star evolution

Shreeya Shetye, Sophie Van Eck, Alain Jorissen +2

The technetium-rich (Tc-rich) M stars reported in the literature (Little-Marenin & Little (1979); Uttenthaler et al. (2013)) are puzzling objects since no isotope of technetium has…