Massive stars in the era of large spectroscopic surveys: The MEIGAS project

In the era of large spectroscopic surveys, a vast amount of spectra of massive stars will be gathered and supplemented by the wealth of astrometric and photometric data provided by the Gaia satellite. Released data will mean a major step forward in the study of massive stars, giving us the chance to create statistically significant samples to explore the role of almost any parameter. In this contribution, I introduce to the community the Multi-wavelength Exploration of massIve star-forminG regions and ASsociations project (MEIGAS) and long-term plans for conducting comprehensive studies in the major galactic and near extragalactic star-forming regions and OB associations. Benefiting from current and forthcoming data from large scale spectroscopic surveys such as WEAVE and 4MOST (among others), as well as complementary observations at different wavelength ranges, the project aims to achieve crucial and complementary information to adequately characterize these regions and their stellar content, something imperative to improve our understanding of star formation and poorly known evolutionary pathways of massive stars.