Gaia-ESO Data Release 5.1: the catalogue with the astrophysical parameters for ~115000 stars

Publish Time:2025-12-31

The Gaia-ESO Spectroscopic Survey, initiated by the European Southern Observatory (ESO), is a comprehensive endeavor to determine stellar parameters and elemental abundances for a vast sample of Milky Way stars, supplementing the astrometric data from the Gaia mission. This survey leverages the FLAMES instrument on ESO's 8-meter Very Large Telescope (VLT), utilizing both the Giraffe and UVES spectrographs to study all Milky Way populations, with a particular emphasis on open star clusters.

The survey encompasses data from over 110,000 unique stellar targets, observed from December 31, 2011, to January 26, 2018. The dataset includes high-precision radial velocities, stellar parameters such as effective temperature and surface gravity, metallicity ([Fe/H]), and abundances of up to 31 elements. Additionally, it provides crucial parameters like lithium abundances, equivalent widths of Hα and Hβ emissions, and chromospheric fluxes.

The Gaia-ESO dataset is distinguished by its meticulous radial velocity measurements and detailed multi-element abundance analyses. The data processing involves multiple pipelines and nodes, along with the use of internal calibrators to ensure the combination and homogenization of results. The scientific applications of this dataset are extensive, encompassing investigations into the structure and evolution of the Milky Way, stellar physics and evolution, and the calibration of stellar ages.

These data are provided by the European Southern Observatory (ESO) originally.
When using the data, please comply with the CC BY 4.0 license and acknowledge the source as required by ESO.

· Data Access ·

Data Website

Data Download

♦Introduction♦

Keywords

surveys , catalogs , stars , spectroscopic , abundances , open clusters and associations

Data Volume

49.21 MB 2 files

♦Contact Author♦

Author

Gerry Gilmore, Sofia Randich

ges-support(at)roe.ac.uk

♦Contact Publisher ♦

support(at)china-vo.org

Phone

+86-10-64807973

Institution

National Astronomical Data Center

♦Rights♦

Standard Acknowledgement

These data products have been processed by the Cambridge Astronomy Survey Unit (CASU) at the Institute of Astronomy, University of Cambridge, and by the FLAMES/UVES reduction team at INAF-Osservatorio Astrofisico di Arcetri. Public access to the data products is via the ESO Archive, and the Gaia-ESO Survey Data Archive, prepared and hosted by the Wide Field Astronomy Unit, Institute for Astronomy, University of Edinburgh, which is funded by the UK Science and Technology Facilities Council. Requirements for third parties distributing ESO data --ESO data files (both raw and processed data) may be distributed by third parties, and disseminated via other services, according to the terms of the Creative Commons Attribution 4.0 International license. Credit to the ESO provenance of the data must be acknowledged, and the file headers preserved. In case of scientific use of the ESO data by users that access ESO data via third party archival services, the users should follow the same acknowledgement policies as for the ESO SAF, as described below. Based on data obtained from the ESO Science Archive Facility with DOI(s): https://doi.org/10.18727/archive/25.

♦Tags♦

waveband

Optical

telescope or project

Very Large Telescope（VLT）

subject

Star and Interstellar Matter

data type

Spectrum Data

Catalog Data

Mirror Data

production age

1980-

content level

Research