Final data release (5.1) of the Gaia-ESO public spectroscopic survey

Published: 05 Jul 2023

Utilizing the UVES and GIRAFFE instruments, this comprehensive survey has encompassed all major components of the Milky Way, systematically studying 114,916 stars. The observed robust samples have enabled detailed observations of bulge, thick and thin disks, halo components, and open star clusters of various ages and Galactocentric distances.

The survey has provided an unprecedented, homogeneous overview of kinematic distributions and elemental abundances, significantly enhancing our understanding of Galactic and stellar evolution. Coupled with Gaia astrometry, this data helps quantify the formation history and evolution of Galactic populations across diverse stages, providing individual elemental abundances in each star, offering precise radial velocities for a 6-D kinematic phase-space, mapping kinematic gradients and abundances, and tracking the life cycle of open clusters as they populate the disk.

This final data release represents a valuable legacy dataset, enhancing the utility of the Gaia mission and ongoing ESO surveys.

The data products are available from the ESO Archive Science Portal or the Programmaticic Access service. The associated catalog containing radial velocities and abundances is available Programmatically or via the dedicated Catalogue Interface.

More details about the release content can be found in the associated data release description.

The DOI assigned to the data collection is 10.18727/archive/25.