Alpha element abundances and gradients in the Milky Way bulge from FLAMES-GIRAFFE spectra of 650 K giants

2011/03/31 by O. A. Gonzalez, O. A. González, M. Rejkuba +12 · 4 citations
Physics and Astronomy · #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Astrophysics and Star Formation Studies #Bulge #Galaxy #Giant star #Globular cluster #Halo #Metallicity #Milky Way #Physics #Red-giant branch #Spectral line #Stars #Stellar, planetary, and galactic studies #Thick disk #astro-ph.GA

paper · pdf · doi:10.1051/0004-6361/201116548

13 pages, 17 figures. Accepted for publication in Astronomy and Astrophysics

arxiv created 2011/03/31 · openalex publication_date 2011/04/11 · arxiv updated 2015/05/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

Aims. We present the analysis of the [α/Fe] abundance ratios for a large number of stars at several locations in the Milky Way bulge with the aim of constraining its formation scenario.

Citations

• Stellar Proper Motions in the Galactic Bulge from DeepHubble Space TelescopeACS WFC Photometry
• α-, r-, and s-process element trends in the Galactic thin and thick disks
• Oxygen, sodium, magnesium, and aluminium as tracers of the galactic bulge formation
• Elemental abundance survey of the Galactic thick disc
• The rapid formation of a large rotating disk galaxy three billion years after the Big Bang
• Old and Young Bulges in Late‐Type Disk Galaxies
• The Cosmic Baryon Budget
• Chemical similarities between Galactic bulge and local thick disk red giant stars
• The Chemical Composition of the Sun
• Abundances in bulge stars from high-resolution, near-IR spectra

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• Detailed Chemical Composition and Orbit of the Newly Discovered Globular Cluster FSR 1758: Implications for the Accretion of the Sequoia Dwarf Galaxy onto the Milky Way*
• A comparison between X-shooter spectra and PHOENIX models across the HR-diagram