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Accueil > Seminar on 2021.03.01 by Eduardo (...) > Sulphur, Zinc & Carbon in the (...)

Sulphur, Zinc & Carbon in the Sculptor Dwarf Spheroidal Galaxy

Asa Skuladottir

The origin of carbon-enhanced metal-poor (CEMP) stars and their possible
connection with the chemical elements produced by the first stellar
generation is still highly debated. Recently, the first CEMP-no star was
found in the Sculptor dwarf spheroidal galaxy at an iron abundance of
[Fe/H] 2.03 ± 0.10. Sculptor is a well studied dwarf galaxy in the
Local Group, which is dominated by an old stellar population (>10 Gyr)
and is therefore an ideal system to study early chemical evolution. This
discovery of a CEMP-no star in Sculptor, along with measurements of the
volatile elements sulphur & zinc in this galaxy, will be presented and put
in context with the Milky Way and beyond.