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HERBS I: Metallicity and alpha enhancement along the Galactic bulge minor axis

Duong, Ly; Asplund, Martin; Nataf, David M.; Freeman, Kenneth; Ness, Melissa; Howes, L. M.

Description

To better understand the origin and evolution of the Milky Way bulge, we have conducted a survey of bulge red giant branch and clump stars using the High Efficiency and Resolution Multi-Element Spectrograph on the Anglo–Australian Telescope. We targeted ARGOS survey stars with predetermined bulge memberships, covering the full metallicity distribution function. The spectra have signal-to-noise ratios comparable to, and were analysed using the same methods as the GALAH survey. In this work, we...[Show more]

CollectionsANU Research Publications
Date published: 2019-04-20
Type: Journal article
URI: http://hdl.handle.net/1885/232561
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stz1104
Access Rights: Open Access

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