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Selecting accreted populations: Metallicity, elemental abundances, and ages of the Gaia-Sausage-Enceladus and Sequoia populations

Feuillet, Diane; Sahlholdt, Christian L.; Feltzing, Sofia; Casagrande, Luca

Description

Identifying stars found in the Milky Way as having formed in situ or accreted can be a complex and uncertain undertaking. We use Gaia kinematics and APOGEE elemental abundances to select stars belonging to the Gaia-Sausage-Enceladus (GSE) and Sequoia accretion events. These samples are used to characterize the GSE and Sequoia population metallicity distribution functions, elemental abundance patterns, age distributions, and progenitor masses. We find that the GSE population has a mean [Fe/H]...[Show more]

CollectionsANU Research Publications
Date published: 2021
Type: Journal article
URI: http://hdl.handle.net/1885/299491
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stab2614
Access Rights: Open Access

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