Gaia Data Release 3: Astrophysical parameters inference system (Apsis) I -- methods and content overview

Understand

Gaia Data Release 3 contains a wealth of new data products for the community.

• Astrophysical parameters are a major component of this release.
• They were produced by the Astrophysical parameters inference system (Apsis) within the Gaia Data Processing and Analysis Consortium.
• The aim of this paper is to describe the overall content of the astrophysical parameters in Gaia Data Release 3 and how they were produced.