We develop a hybrid model of galactic chemical evolution that combines a multiring
computation of chemical enrichment with a prescription for stellar migration and the vertical …

The formation of our Milky Way can be split up qualitatively into different phases that resulted
in its structurally different stellar populations: the halo and the disk components,–. Revealing …

We report the results of an unsupervised decomposition of the local stellar halo in the
chemodynamical space spanned by the abundance measurements from APOGEE DR17 …

Ensemble studies of red-giant stars with exquisite asteroseismic (Kepler), spectroscopic
(APOGEE), and astrometric (Gaia) constraints offer a novel opportunity to recast and …

Open clusters are unique tracers of the history of our own Galaxy's disc. According to our
membership analysis based on Gaia astrometry, out of the 226 potential clusters falling in …

Spirals in galaxies have long been thought to be caused by gravitational instability in the
stellar component of the disk, but discerning the precise mechanism had proved elusive …

Over the last few years, many studies have found an empirical relationship between the
abundance of a star and its age. Here we estimate spectroscopic stellar ages for 178 825 …

To understand the formation of the Milky Way's prominent bar it is important to know whether
stars in the bar differ in the chemical element composition of their birth material as compared …

Context. Mapping the Galactic spiral structure is a difficult task since the Sun is located in the
Galactic plane and because of dust extinction. For these reasons, molecular masers in radio …

We present the results of a multicomponent kinematic model of a large sample of RR Lyrae
detected by Gaia. By imposing a fourfold symmetry and employing Gaia proper motions, we …