The [α/Fe]-[Fe/H] relation in the E-MOSAICS simulations

• Verfasst von: Hughes, Meghan E. [VerfasserIn]
• Verfasst von: Pfeffer, Joel L. [VerfasserIn]
• Verfasst von: Martig, Marie [VerfasserIn]
• Verfasst von: Reina-Campos, Marta [VerfasserIn]
• Verfasst von: Bastian, Nate [VerfasserIn]
• Verfasst von: Crain, Robert A. [VerfasserIn]
• Verfasst von: Kruijssen, Diederik [VerfasserIn]
• Titel: The [α/Fe]-[Fe/H] relation in the E-MOSAICS simulations
• Titelzusatz: its connection to the birth place of globular clusters and the fraction of globular cluster field stars in the bulge
• Verf.angabe: Meghan E. Hughes, Joel L. Pfeffer, Marie Martig, Marta Reina-Campos, Nate Bastian, Robert A. Crain and J.M. Diederik Kruijssen
• Jahr: 2020
• Jahr des Originals: 2019
• Umfang: 11 S.
• Fussnoten: Advance access publication 2019 November 29 ; Gesehen am 08.04.2020
• Titel Quelle: Enthalten in: Royal Astronomical SocietyMonthly notices of the Royal Astronomical Society
• Ort Quelle: Oxford : Oxford Univ. Press, 1827
• Jahr Quelle: 2020
• Band/Heft Quelle: 491(2020), 3, Seite 4012-4022
• ISSN Quelle: 1365-2966
• DOI: doi:10.1093/mnras/stz3341
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1694266672

Abstract

The α-element abundances of the globular cluster (GC) and field star populations of galaxies encode information about the formation of each of these components. We use the E-MOSAICS cosmological simulations of ∼L* galaxies and their GCs to investigate the [α/Fe]–[Fe/H] distribution of field stars and GCs in 25 Milky Way–mass galaxies. The [α/Fe]–[Fe/H] distribution of GCs largely follows that of the field stars and can also therefore be used as tracers of the [α/Fe]–[Fe/H] evolution of the galaxy.