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astro-ph.SR2024
WIYN Open Cluster Study. XC. Radial-velocity Measurements and Spectroscopic Binary Orbits in the Open Cluster NGC 2506
Evan Linck, Robert D. Mathieu, David W. Latham
NGC 2506 is a rich, intermediate-age (2.0 Gyr), metal-poor ([Fe/H] -0.2) open cluster. This work presents the results of 12,157 spectroscopic radial-velocity measurements of…
astro-ph.SR2024
WIYN Open Cluster Study. XC. Barium Surface Abundances of Blue Straggler Stars in the Open Clusters NGC 7789 and M67
Andrew C. Nine, Robert D. Mathieu, Simon C. Schuler +1
We investigate barium (Ba) abundances in blue straggler stars (BSSs) in two open clusters, NGC 7789 (1.6 Gyr) and M67 (4 Gyr), as signatures of asymptotic-giant-branch (AGB) mass t…