7457 20250204101633.0 10.48550/arXiv.2411.04887 DOI SCART-2025-0088 Frémat, Y. Astrophysical Parameters associated to Hot stars in Gaia DR3 2024 Hot stars, of spectral types O-, B-, and A-, represent a small fraction of the stars observed by the Gaia satellite. Their properties and the specifications of the on-board instruments make their identification challenging. In the Gaia DR3, 12,104,577 targets have been assigned a temperature greater than 7500 K. It represents ∼2.5% of the stars having an effective temperature value in the Gaia DR3 {astrophysical_parameters} table. We review the results obtained by the Apsis modules, focusing on the effective temperature, surface gravity, interstellar extinction, and vsini parameters. CNRS/ CNRS/ CNRS NO stars: fundamental parameters – Galaxy: stellar content – dust, extinction – catalogs EES2023: Proceedings of the Evry Schatzman School, eds. Babusiaux, C. and Reylé, C. 2024 59-69 yves.fremat@ksb-orb.be https://ui.adsabs.harvard.edu/abs/2024ees..conf...59F/abstract https://ees2023.sciencesconf.org/resource/page/id/7 published in NONREF