Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1001..220w&link_type=abstract
IXTH TORINO WORKSHOP ON EVOLUTION AND NUCLEOSYNTHESIS IN AGB STARS AND THE IIND PERUGIA WORKSHOP ON NUCLEAR ASTROPHYSICS. AIP C
Astronomy and Astrophysics
Astrophysics
Giant And Subgiant Stars, Abundances, Chemical Composition, Globular Clusters In The Milky Way, Astronomical And Space-Research Instrumentation, Spectroscopy And Spectrophotometry
Scientific paper
Eleven giant branch stars in 47 Tucanæ were observed using the Robert Stobie Spectro-graph (RSS) on the Southern African Large Telescope during the performance verification phase of this instrument. These stars were analysed as part of a quest to investigate s-process element abundances throughout the colour-magnitude diagram of 47 Tucanæ. No abundance variations of Zr, Ba, Nd and Eu were found in these eleven stars, such that [X/Fe] = 0.0+/-0.5 3dex. Further, theoretical analysis indicates that the maximum resolution on RSS and AAOmega on the Anglo-Australian Telescope is sufficient to detect s-process element abundance variations. More detailed discussion on the abundance analysis of these stars and the theoretical analysis of spectrograph resolution can be found in [l].
Cottrell Peter L.
Worley Clare C.
Wylie de Boer E. C.
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