720 citations · 8.5k across the 138 of their papers we have counts for
10 papers · 1 filter
Detailed homogeneous abundance studies of 14 Galactic s-process enriched post-AGB stars: In search of lead (Pb)
Kenneth De Smedt, Hans Van Winckel, Devika Kamath +4
This paper is part of a larger project in which we systematically study the chemical abundances of Galactic and extragalactic post-asymptotic giant branch (post-AGB) stars. Lead (P…
The Chemical Abundances of Stars in the Halo (CASH) Project. III. A New Classification Scheme for Carbon-Enhanced Metal-poor Stars with S-process Element Enhancement
Julie K. Hollek, Anna Frebel, Vinicius M. Placco +4
We present a detailed abundance analysis of 23 elements for a newly discovered carbon-enhanced metal-poor (CEMP) star, HE 0414-0343, from the Chemical Abundances of Stars in the Ha…
HIP 10725: The First Solar Twin/Analogue Field Blue Straggler
Lucas Schirbel, Jorge Melendez, Amanda I. Karakas +9
[Context]. Blue stragglers are easy to identify in globular clusters, but are much harder to identify in the field. Here we present the serendipitous discovery of one field blue st…
Post-AGB stars in the Magellanic Clouds and neutron-capture processes in AGB stars
M. Lugaro, S. W. Campbell, H. Van Winckel +3
We explore modifications to the current scenario for the slow neutron capture process in asymptotic giant branch (AGB) stars to account for the Pb deficiency observed in post-AGB s…
R Coronae Borealis Stars are Viable Factories of Pre-solar Grains
Amanda I. Karakas, Ashley J. Ruiter, Melanie Hampel
We present a new theoretical estimate for the birthrate of R Coronae Borealis (RCB) stars that is in agreement with recent observational data. We find the current Galactic birthrat…
Modelling the observed properties of carbon-enhanced metal-poor stars using binary population synthesis
C. Abate, O. R. Pols, R. J. Stancliffe +4
The stellar population in the Galactic halo is characterised by a large fraction of CEMP stars. Most CEMP stars are enriched in -elements (CEMP- stars), and some of these are…