Massive stars have strong stellar winds that direct their evolution through the upper
Hertzsprung–Russell diagram and determine the black hole mass function. Furthermore …

Gravitational-wave detectors are starting to reveal the redshift evolution of the binary black
hole (BBH) merger rate, R BBH (z). We make predictions for R BBH (z) as a function of black …

We present a new study of late-type eclipsing binary stars in the Small Magellanic Cloud
(SMC) undertaken with the aim of improving the distance determination to this important …

The gravitationally lensed star WHL 0137–LS, nicknamed Earendel, was identified with a
photometric redshift z phot= 6.2±0.1 based on images taken with the Hubble Space …

Common-envelope (CE) evolution in massive binary systems is thought to be one of the
most promising channels for the formation of compact binary mergers. In the case of merging …

Evolutionary models have shown the substantial effect that strong mass-loss rates (s) can
have on the fate of massive stars. Red supergiant (RSG) mass-loss is poorly understood …

The era of large transient surveys, gravitational-wave observatories, and multi-messenger
astronomy has opened up new possibilities for our understanding of the evolution and final …

We present an optical analysis of 55 members of R136, the central cluster in the Tarantula
Nebula of the Large Magellanic Cloud. Our sample was observed with STIS aboard the …

In binary black hole mergers from isolated binary-star evolution, both black holes are from
progenitor stars that have lost their hydrogen-rich envelopes by binary mass transfer …

Mass loss in red supergiants (RSGs) is generally recognized to be episodic, but mass-loss
prescriptions fail to reflect this. Evolutionary models show that the total amount of mass lost …