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Sulphur, Zinc & Carbon in the Sculptor Dwarf Spheroidal Galaxy

Asa Skuladottir

Évènements associés

  • Le lundi 14 novembre 2016 de 11:00 à 12:00

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.