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Understanding AGB evolution in galactic bulge stars from high-resolution infrared spectroscopy

Uttenthaler, S; Blommaert, J A D L; Wood, Peter R; Lebzelter, Thomas; Aringer, B; Schultheis, M; Ryde, N.


An analysis of high-resolution near-infrared spectra of a sample of 45 asymptotic giant branch (AGB) stars towards the Galactic bulge is presented. The sample consists of two subsamples, a larger one in the inner and intermediate bulge, and a smaller one in the outer bulge. The data are analysed with the help of hydrostatic model atmospheres and spectral synthesis. We derive the radial velocity of all stars, and the atmospheric chemical mix ([Fe/H], C/O, 12C/13C, Al, Si, Ti, and Y) where...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stv1052
Access Rights: Open Access


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