Chemical abundances in Terzan 7 from UVES spectra
Astrophysics
2007-05-23 v1
Abstract
We present chemical abundances for Mg, Si, Ca and Fe for three red giants in the sparse globular cluster Terzan 7, physically associated to the Sagittarius Dwarf Spheroidal Galaxy (Sgr dSph), which is presently being tidally disrupted by the Milky Way. The data has been obtained with VLT-UVES and show a mean [Fe/H]=-0.57, with solar alpha content, mean [alpha/Fe]=-0.03. This enforces Ter 7's membership to the Sgr dSph system, which shows a similar pattern of abundance.
Cite
@article{arxiv.astro-ph/0309120,
title = {Chemical abundances in Terzan 7 from UVES spectra},
author = {L. Sbordone and P. Bonifacio and G. Marconi and R. Buonanno},
journal= {arXiv preprint arXiv:astro-ph/0309120},
year = {2007}
}
Comments
Poster presented at IAU JD 04, Sidney July 16 & 17, 2003