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Abstract:

Massive stars are fundamental drivers of galactic evolution, exerting powerful feedback on their surroundings and shaping the ecology of their host galaxies. Over the past decade, high-resolution observations and state-of-the-art theoretical modeling have significantly advanced our understanding of their formation. In this talk, I will present recent theoretical and observational studies of massive star formation in both Galactic and low-metallicity environments, including collaborative work. I will focus on three key topics:
1. whether and how feedback regulates accretion onto very massive protostars;
2. dust evolution and gas chemistry in hot disks around massive protostars; and
3. new findings on massive protostars in low-metallicity environments such as the Magellanic Clouds, highlighting the potential diversity of star formation across different galactic contexts.