VLT/FLAMES high-resolution chemical abundances in Sculptor: a textbook dwarf spheroidal galaxy

We present detailed chemical abundances for 99 red-giant branch stars in the centre of the Sculptor dwarf spheroidal galaxy, obtained from high-resolution VLT/FLAMES spectroscopy. This includes abundances of Li (detected in 1 out of 99 stars), Na, \(\alpha\)-elements (O, Mg, Si, Ca Ti), iron-peak el...

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Veröffentlicht in:	arXiv.org 2019-04
Hauptverfasser:	Hill, Vanessa, Skúladóttir, Ása, Tolstoy, Eline, Venn, Kim A, Shetrone, Matthew D, Jablonka, Pascale, Primas, Francesca, Battaglia, Giuseppina, Thomas J L de Boer, Patrick, François, Helmi, Amina, Kaufer, Andreas, Letarte, Bruno, Starkenburg, Else, Spite, Monique
Format:	Artikel
Sprache:	eng
Schlagworte:	Alpha iron Asymptotic giant branch stars Calcium Chemical evolution Chromium Collapse Dwarf galaxies Galaxy distribution High resolution Initial mass function Knee Magnesium Manganese Metallicity Milky Way Galaxy Nickel Nuclear fusion Organic chemistry Physics - Astrophysics of Galaxies Scandium Silicon Spheroidal galaxies Stars & galaxies Stellar evolution Supernovae Zinc
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Zusammenfassung:	We present detailed chemical abundances for 99 red-giant branch stars in the centre of the Sculptor dwarf spheroidal galaxy, obtained from high-resolution VLT/FLAMES spectroscopy. This includes abundances of Li (detected in 1 out of 99 stars), Na, \(\alpha\)-elements (O, Mg, Si, Ca Ti), iron-peak elements (Sc, Cr, Fe, Co, Ni, Zn), r- and s-process elements (Ba, La, Nd, Eu). The sample, covering -2.3< [Fe/H]
ISSN:	2331-8422
DOI:	10.48550/arxiv.1812.01486