The chemical compositions of stars encode the history of the universe and are thus
fundamental for advancing our knowledge of astrophysics and cosmology. However …

Stellar ejecta gradually enrich the gas out of which subsequent stars form, making the least
chemically enriched stellar systems direct fossils of structures formed in the early Universe …

Iron is one of the most important elements in-stellar astrophysics. However, spectroscopic
measurements of its abundance are prone to systematic modelling errors. We present three …

Variations in chemical abundances with evolutionary phase have been identified among
stars in globular and open clusters with a wide range of metallicities. In the metal-poor …

Context. Over its history, the Milky Way has accreted several smaller satellite galaxies.
These mergers added stars and gas to the Galaxy and affected the properties of the pre …

We present a chemo-dynamical analysis for 27 near main-sequence turnoff metal-poor
stars, including 20 stars analysed for the first time. The sample spans a range in [Fe/H] from …

Context. Representative samples of F-, G-, K-type stars located outside of the solar
neighbourhood have started to become available in spectroscopic surveys. The fraction of …

Aims. We present an updated version of the STAGGER-grid of three-dimensional model
atmospheres, and explore the accuracy of postprocessing methods in preparation for …

Precise fundamental atmospheric stellar parameters and abundance determination of
individual elements in stars are important for all stellar population studies. Non–local …

The chemical compositions of stars encode the history of the universe and are thus
fundamental for advancing our knowledge of astrophysics and cosmology. However …