Validating Gaia DR3 Pulsating Variable Classifications with TESS: Building Reliable $\delta$ Scuti and $\gamma$ Doradus Stars Catalogs (In Progress)

TL;DR

This study validates Gaia DR3 pulsating variable star classifications using TESS data, resulting in reliable catalogs of delta Scuti and gamma Doradus stars, and identifying additional variable types.

Contribution

It provides the first comprehensive validation of Gaia DR3 pulsating star classifications with TESS, improving catalog reliability and discovering new variable star systems.

Findings

Validated 1715 delta Scuti stars

Validated 1403 gamma Doradus stars

Identified 260 eclipsing binaries and other variables

Abstract

Gaia DR3 revealed 748,058 pulsating variable stars of mixed DSCT|GDOR|SXPHE types. This project undertakes a comprehensive examination to validate and distinguish these stars using TESS data. Aiming for reliable catalogs of bona fide $\delta$ Scuti and $\gamma$ Doradus stars, I have validated 1715 $\delta$ Scuti stars, 1403 $\gamma$ Doradus stars, and identified 260 eclipsing binaries, one RR Lyrae star, and 460+ rotating variables from an initial sample of 16,690 objects. Notably, 15 of the newfound eclipsing binaries harbor pulsating $\gamma$ Doradus components.