The assembly history of the Galactic inner halo inferred from α-element patterns

Abstract We explore the origin of the observed decline in [O/Fe] (and [Mg/Fe]) with Galactocentric distance for high-metallicity stars ([Fe/H] > −1.1), based on a sample of halo stars selected within the Apache Point Observatory Galactic Evolution Experiment (APOGEE) fourteenth data release (DR14...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2019-05, Vol.485 (2), p.1745-1756
Hauptverfasser:	Fernández-Alvar, Emma, Tissera, Patricia B, Carigi, Leticia, Schuster, William J, Beers, Timothy C, Belokurov, Vasily A
Format:	Artikel
Sprache:	eng
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