105 citations · 193 across the 7 of their papers we have counts for
7 papers
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…
The GALAH Survey: Non-LTE departure coefficients for large spectroscopic surveys
A. M. Amarsi, K. Lind, Y. Osorio +23
Massive sets of stellar spectroscopic observations are rapidly becoming available and these can be used to determine the chemical composition and evolution of the Galaxy with unpre…
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…