Orbital properties of binary post-AGB stars
GM Oomen, H Van Winckel, O Pols… - Astronomy & …, 2018 - aanda.org
Binary post-asymptotic giant branch (post-AGB) stars are thought to be the products of a
strong but poorly understood interaction during the AGB phase. The aim of this contribution …
strong but poorly understood interaction during the AGB phase. The aim of this contribution …
Heavy-element yields and abundances of asymptotic giant branch models with a Small Magellanic Cloud metallicity
We present new theoretical stellar yields and surface abundances for asymptotic giant
branch (AGB) models with a metallicity appropriate for stars in the Small Magellanic Cloud …
branch (AGB) models with a metallicity appropriate for stars in the Small Magellanic Cloud …
Gas and dust from solar metallicity AGB stars
We study the asymptotic giant branch (AGB) evolution of stars with masses between 1 M⊙
and8. 5 M⊙. We focus on stars with a solar chemical composition, which allows us to …
and8. 5 M⊙. We focus on stars with a solar chemical composition, which allows us to …
s-processing in AGB stars revisited. III. Neutron captures from MHD mixing at different metallicities and observational constraints
We present post-process neutron-capture computations for Asymptotic Giant Branch (AGB)
stars of 1.5–3 M⊙ and metallicities− 1.3≤[Fe/H]≤ 0.1. The reference stellar models are …
stars of 1.5–3 M⊙ and metallicities− 1.3≤[Fe/H]≤ 0.1. The reference stellar models are …
Low-mass low-metallicity AGB stars as an efficient i-process site explaining CEMP-rs stars
D Karinkuzhi, S Van Eck, S Goriely, L Siess… - Astronomy & …, 2021 - aanda.org
Context. Among carbon-enhanced metal-poor (CEMP) stars, some are found to be enriched
in slow-neutron capture (s-process) elements (and are then tagged CEMP-s), some have …
in slow-neutron capture (s-process) elements (and are then tagged CEMP-s), some have …
Learning about the intermediate neutron-capture process from lead abundances
M Hampel, AI Karakas, RJ Stancliffe… - The Astrophysical …, 2019 - iopscience.iop.org
Lead (Pb) is predominantly produced by the slow neutron-capture process (s process) in
asymptotic giant branch (AGB) stars. In contrast to significantly enhanced Pb abundances …
asymptotic giant branch (AGB) stars. In contrast to significantly enhanced Pb abundances …
The 21 μm and 30 μm emission features in carbon-rich objects
K Volk, GC Sloan, KE Kraemer - Astrophysics and Space Science, 2020 - Springer
We review the observational properties and possible carriers of the 21 and 30 μm features
seen in the spectra of evolved carbon-rich objects. The 30 μm feature is generally taken to …
seen in the spectra of evolved carbon-rich objects. The 30 μm feature is generally taken to …
Luminosities and Masses of Single Galactic Post-asymptotic Giant Branch Stars with Distances from Gaia EDR3: The Revelation of an s-process Diversity
Post-asymptotic giant branch (AGB) stars are exquisite probes of AGB nucleosynthesis.
However, the previous lack of accurate distances jeopardized comparison with theoretical …
However, the previous lack of accurate distances jeopardized comparison with theoretical …
The s process in AGB stars as constrained by a large sample of barium stars
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 …
produced by the slow neutron-capture process (s process). These stars belong to binary …
When binaries keep track of recent nucleosynthesis-The Zr–Nb pair in extrinsic stars as an s-process diagnostic
D Karinkuzhi, S Van Eck, A Jorissen, S Goriely… - Astronomy & …, 2018 - aanda.org
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 …
a past mass transfer phase. During this phase they were polluted by their binary companion …