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A Two Micron All-Sky Survey View of the Sagittarius Dwarf Galaxy: VI. s-Process and Titanium Abundance Variations Along the Sagittarius Stream
Mei-Yin Chou, Katia Cunha, Steven R. Majewski +4
We present high-resolution spectroscopic measurements of the abundances of titanium (Ti), yttrium (Y) and lanthanum (La) for M giant candidates of the Sagittarius (Sgr) dwarf spher…
Sulfur Abundances in the Orion Association B Stars
Simone Daflon, Katia Cunha, Ramiro de la Reza +2
Sulfur abundances are derived for a sample of ten B main-sequence star members of the Orion association. The analysis is based on LTE plane-parallel model atmospheres and non-LTE l…
Detailed analyses of three neutron-capture-rich carbon-enhanced metal-poor stars
N. T. Behara, P. Bonifacio, H. -G. Ludwig +3
Approximately 20% of very metal-poor stars ([Fe/H] < -2.0) are strongly enhanced in carbon ([C/Fe] > +1.0). Such stars are referred to as carbon-enhanced metal-poor (CEMP) stars. W…