2 papers
astro-ph.GA2026
Chemodynamical evidence of the HR 1614 moving group as a bar resonance
Andreas J. Koch-Hansen, Vladislav Gulaev, Dominik H. Plonka +4
Moving groups (MGs) are ensembles of disk stars that clump in velocity and action space. A multitude of explanations as to their origin has been attempted, from dissolved star clus…
astro-ph.SR2025
HE2159-0551: a very metal-poor peculiar low Ba giant -- a candidate from the LMS-1/Wukong
A. Schichtel, D. H. Plonka, C. J. Hansen
We present a comprehensive spectroscopic and kinematic analysis of the very metal-poor ([Fe/H] = -2.60 0.20 dex) giant star HE2159-0551. By investigating the star's chemodyna…