The Milky Way Radial Metallicity Gradient as an Equilibrium Phenomenon: Why Old Stars Are Metal Rich

Metallicities of both gas and stars decline toward large radii in spiral galaxies, a trend known as the radial metallicity gradient. We quantify the evolution of the metallicity gradient in the Milky Way as traced by APOGEE red giants with age estimates from machine learning algorithms. Stars up to...

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Bibliografski detalji

Glavni autori:	James W. Johnson, David H. Weinberg, Guillermo A. Blanc, Ana Bonaca, Gwen C. Rudie, Yuxi (Lucy) Lu, Bronwyn Reichardt Chu, Emily J. Griffith, Tawny Sit, Jennifer A. Johnson, Liam O. Dubay, Miqaela K. Weller, Daniel A. Boyea, Jonathan C. Bird
Format:	Artigo
Jezik:	Inglês
Izdano:	IOP Publishing 2025-01-01
Serija:	The Astrophysical Journal
Teme:	Galaxy chemical evolution Milky Way disk Milky Way evolution Chemical enrichment Chemical abundances Galactic winds
Online pristup:	https://doi.org/10.3847/1538-4357/addbe5
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