Alma Luminous Star catalogue IV: A Massive star census in the Magellanic Clouds

TL;DR

This paper presents the creation of a comprehensive catalogue of massive stars in the Magellanic Clouds by integrating multiple astronomical data sources, enabling detailed studies of these galaxies and their stellar populations.

Contribution

It introduces a new, extensive catalogue of massive stars in the Magellanic Clouds by combining Gaia DR3, Simbad, and other data sources with specific selection criteria.

Findings

Most complete sample of massive stars in the Magellanic Clouds

Enhanced understanding of stellar populations in the Clouds

Potential for future astrophysical studies

Abstract

The fourth part of the Alma Luminous Star catalogue (ALS IV) aims to create the most comprehensive sample of massive stars in the Magellanic Clouds (MCs). By combining Gaia DR3 with Simbad and complementing this information with other photometric and spectroscopic catalogues, we select the massive stars in this region. To achieve this, we apply filters in photometry, combining different bands, as well as in variability and spectral types from the literature. With this approach, we will obtain one of the most complete samples of massive stars in the MCs, which can be used both to study the Clouds and the Magellanic Bridge, as well as the massive stars they contain.