Context. The star cluster R136 inside the Large Magellanic Cloud hosts a rich population of
massive stars, including the most massive stars known. The strong stellar winds of these …

ABSTRACT WEAVE, the new wide-field, massively multiplexed spectroscopic survey facility
for the William Herschel Telescope, saw first light in late 2022. WEAVE comprises a new 2 …

We present a review of UV observations of massive stars and their analysis. We discuss O
stars, luminous blue variables, and Wolf–Rayet stars. Because of their effective temperature …

Blue supergiants are the brightest stars in their host galaxies, and yet their evolutionary
status has been a long-standing problem in stellar astrophysics. In this pioneering work, we …

Context. Massive stars play an important role in the mechanical and chemical evolution of
galaxies. Understanding the internal processes of these stars is vital to our understanding of …

There is increasing evidence that single-star evolutionary models are unable to reproduce
all of the observational properties of massive stars. Binary interaction has emerged as a key …

Context. The majority of massive stars are located in binary or multiple star systems.
Compared to single stars, these objects pose additional challenges to quantitative analyses …

Context. The evolution of massive stars depends on several physical processes and
parameters. Metallicity and rotation are among the most important, but their quantitative …

Context. Late O-type stars at luminosities log L/L⊙≲ 5.2 show weak winds with mass-loss
rates lower than 10− 8 M⊙ yr− 1. This implies that, unlike their more massive and more …

Blue supergiants are the brightest stars in their host galaxies and yet their evolutionary
status has been a long-standing problem in stellar astrophysics. In this pioneering work, we …