Chemical abundances in Terzan 7 from UVES spectra

Details Chemical abundances in Terzan 7 from UVES spectra Chemical abundances in Terzan 7 from UVES spectra

2003-09-03

arxiv.org/abs/astro-ph/0309120v1

Astronomy and Astrophysics

Astrophysics

Poster presented at IAU JD 04, Sidney July 16 & 17, 2003

Scientific paper

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.

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