105 citations · 193 across the 7 of their papers we have counts for
6 papers · 1 filter
A 3D view of dwarf galaxies with Gaia and VLT/FLAMES II. The Sextans dwarf spheroidal
Eline Tolstoy, Giuseppina Battaglia, José María Arroyo-Polonio +7
The Sextans dwarf spheroidal galaxy has been challenging to study in a comprehensive way as it is highly extended on the sky, with an uncertain but large tidal radius of between 80…
Abundances of iron-peak elements in accreted and in situ born Galactic halo stars
P. E. Nissen, A. M. Amarsi, Á. Skúladóttir +1
Previous work on the abundances of C, O, Na, Mg, Si, Ca, Ti, Cr, Mn, Fe, Ni, Cu, and Zn in low-alpha (accreted) and high-alpha (in situ born) halo stars is extended to include the…
Characterising the true descendants of the first stars
Irene Vanni, Stefania Salvadori, Ása Skúladóttir +2
The metal-poor stars in the Galactic halo are thought to show the imprints of the first (PopIII) stars, and thus provide a glance at the first episodes of star formation. In this w…
Tracing Pop III supernovae with extreme energies through the Sculptor dwarf spheroidal galaxy
Ása Skúladóttir, Irene Vanni, Stefania Salvadori +1
The Sculptor dwarf spheroidal galaxy is old and metal-poor, making it ideal to study the earliest chemical enrichment in the Local Group. We followed up the most metal-poor star kn…
Are all metal-poor stars of second-generation?
Irene Vanni, Stefania Salvadori, Ása Skúladóttir
Hydrodynamical cosmological simulations predict that the metal-free Population III (Pop III) stars were likely very massive and, therefore, short-lived. However, they left their ch…
Evidence for Gyr timescales of neutron star mergers from Galactic archaeology
Ása Skúladóttir, Stefania Salvadori
The nucleosynthetic site of the rapid () neutron-capture process is currently being debated. The direct detection of the neutron star merger GW170817, through gravitational wave…