Gaia Data Release 3 Properties and validation of the radial velocities

Understand

Gaia Data Release 3 (Gaia DR3) contains the second release of the combined radial velocities.

• It is based on the spectra collected during the first 34 months of the nominal mission.
• The longer time baseline and the improvements of the pipeline made it possible to push the processing limit, from Grvs = 12 in Gaia DR2, to Grvs = 14 mag.
• In this article, we describe the new functionalities implemented for Gaia DR3, the quality filters applied during processing and post-processing and the properties and performance of the published velocities.