Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005mnras.363..911l&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 363, Issue 2, pp. 911-917.
Astronomy and Astrophysics
Astronomy
Stars: Abundances, Stars: Agb And Post-Agb, Stars: Atmospheres, Stars: Early-Type, Stars: Evolution, Galaxy: Halo
Scientific paper
High spectral resolution (R~ 40000) and signal-to-noise optical spectra, obtained at the Very Large Telescope (VLT), are presented for three post-asymptotic giant branch (AGB) candidates selected from the Edinburgh-Cape (EC) Faint Blue Object Survey. The stellar atmospheric parameters and chemical compositions, derived using sophisticated non-local thermodynamic equilibrium calculations, reveal that EC 14102-1337 and EC 20068-7324 are both in an evolved post-horizontal branch (HB) evolutionary state. However, EC 11507-2253 is most likely a post-AGB star.
Dufton Philip L.
Hambly Nigel
Keenan Francis P.
Kilkenny Dave
Lynn B. B.
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