We have used The Cannon to apply stellar parameters and abundances derived from GALAH data (GALAH iDR4) to Gaia RVS spectra (Gaia DR3). We trained our data model on ~14000 selected targets common to both the surveys, utilising the stellar labels from GALAH. With this model, we are able to consistently predict stellar parameters such as T_eff, log g, [Fe/H], and abundances of several alpha elements for over 800,000 Gaia RVS spectra. Using stars from a sample of open and globular clusters present in the Gaia RVS catalogue, we have validated our metallicity estimates.

Paper PDF: 

The_Cannon__Stellar_label_transfer__Paper_1_small.pdf

One of the main goals of the Galah survey is to find stellar siblings in the Galactic disk and associate them to a common parent cluster by means of chemistry and dynamics. The success of such chemical tagging hinges critically on our ability to determine the abundances of late-type dwarf and giant stars with high precision, but also to assess whether their present-day abundance patterns truly reflect their original compositions.

Paper PDF: 

Gao_M67.pdf