The Alma catalogue of OB stars. III. A cross-match with Gaia DR3 and an extension based on new spectral classifications

M. Pantaleoni González, J. Maíz Apellániz, R. H. Barbá +4

We present the third installment of the Alma Luminous Star (ALS) catalogue, aimed at creating the most comprehensive and clean sample of Galactic massive stars. This update extends…