168 citations · 565 across the 9 of their papers we have counts for
5 papers · 1 filter
Sc and neutron-capture abundances in Galactic low- and high-alpha field halo stars
C. K. Fishlock, D. Yong, A. I. Karakas +5
We determine relative abundance ratios for the neutron-capture elements Zr, La, Ce, Nd, and Eu for a sample of 27 Galactic dwarf stars with -1.5 < [Fe/H] <-0.8. We also measure the…
Evolution and nucleosynthesis of asymptotic giant branch stellar models of low metallicity
C. K. Fishlock, A. I. Karakas, M. Lugaro +1
We present stellar evolutionary tracks and nucleosynthetic predictions for a grid of stellar models of low- and intermediate-mass asymptotic giant branch (AGB) stars at (…
The s-Process Enrichment of the Globular Clusters M4 and M22
Luke J. Shingles, Amanda I. Karakas, Raphael Hirschi +4
We investigate the enrichment in elements produced by the slow neutron-capture process (-process) in the globular clusters M4 (NGC 6121) and M22 (NGC 6656). Stars in M4 have hom…
Iron and neutron-capture element abundance variations in the globular cluster M2 (NGC 7089)
David Yong, Ian U. Roederer, Frank Grundahl +8
We present CN and CH indices and CaII triplet metallicities for 34 giant stars and chemical abundances for 33 elements in 14 giants in the globular cluster M2. Assuming the program…
The Aquarius Co-Moving Group is Not a Disrupted Classical Globular Cluster
Andrew R. Casey, Stefan Keller, Alan Alves-Brito +8
We present a detailed analysis of high-resolution, high S/N spectra for 5 Aquarius stream stars observed with the MIKE spectrograph on the Magellan Clay telescope. Our sample repre…