Gaia Data Release 3
Open Access

Table 1.

Apsis module acronyms.

Acronym Description
Apsis Astrophysical Parameters Inference System
DSC Discrete Source Classifier
GSP Generalized Stellar Parametrizer
GSP-Phot – from Photometry (photometry & BP, RP spectra)
GSP-Spec – from Spectroscopy (RVS spectra)
ESP Extended Stellar Parametrizer
ESP-CS – for Cool Stars
ESP-ELS – for Emission Line Stars
ESP-HS – for Hot Stars
ESP-UCD – for Ultra Cool Dwarfs
FLAME Final Luminosity Age Mass Estimator
OA Outlier Analysis
MSC Multiple Star Classifier
TGE Total Galactic Extinction

Notes. Refer to Sect. 3 for module descriptions.

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