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355 papers · 1 filter
The GALAH Survey: Neutron-Capture Elemental Abundances for 350,000 Gaia-RVS spectra and the Chemodynamics of Accreted Structures
Pradosh Barun Das, Daniel B. Zucker, Aldo Mura-Guzmán +15
We present a comprehensive data-driven spectroscopic analysis of 357,415 red giant stars using Gaia DR3 Radial Velocity Spectrometer (RVS) spectra (8460-8700 A; ),…
Dawn of the Milky Way disk: Determination of when a rotationally supported disk appears and dating the spin-up of the disk
Sofia Feltzing, Diane Feuillet, Thomas Bensby
Spiral galaxies, like the Milky Way, transform at some point in time into a rotationally supported system. Using an extant data-set consisting of 319 835 sub-giants from LAMOST wit…
Characterisation of the Clouds' young stellar Bridge using Gaia DR3
Marie Schölch, Óscar Jiménez-Arranz, Mercè Romero-Gómez +1
The interaction between the LMC and SMC (the Clouds) has resulted in prominent tidal features, including an extended bridge of gas and stars connecting the two galaxies. This Bridg…
Photometric Identification of Unresolved Binary Stars in Nearby Open Star Clusters
Varvara O. Mikhnevich, Anastasiia Plotnikova, Giovanni Carraro +1
This paper introduces a new method to search for unresolved binary stars in open star clusters. The work aims at improving the approach introduced previously, which employs the (H-…
EDGE-INFERNO: How chemical enrichment assumptions impact the individual stars of a simulated ultra-faint dwarf galaxy
Eric P. Andersson, Martin P. Rey, Robert M. Yates +6
The chemical abundances of stars in galaxies are a fossil record of the star formation and stellar evolution processes that regulate galaxy formation, including the stellar initial…
Impact of selection criteria on the structural parameters of the Galactic thin and thick discs
Simon Alinder, Thomas Bensby, Paul McMillan
Context: The Milky Way contains a thick and a thin disc that differ in chemical, kinematic, structural, and spatial properties. There is significant overlap in the distributions of…