Binary stars are as common as single stars. Binary stars are of immense importance to
astrophysicists because that they allow us to determine the masses of the stars independent …

We report discovery of a bright, nearby () Sun-like star orbiting a dark object. We identified
the system as a black hole candidate via its astrometric orbital solution from the Gaia …

We report spectroscopic and photometric follow-up of a dormant black hole (BH) candidate
from Gaia DR3. The system, which we call Gaia BH2, contains a∼ 1 M⊙ red giant and a …

Massive stars play a major role in the evolution of their host galaxies and serve as important
probes of the distant Universe. It has been established that the majority of massive stars …

As the number of merging binary black holes observed with ground-based gravitational-
wave detectors grows, increasingly accurate theoretical models are required to compare …

Gravitational-wave (GW) detections are starting to reveal features in the mass distribution of
double compact objects. The lower end of the black hole (BH) mass distribution is especially …

Most massive stars are members of a binary or a higher-order stellar system, where the
presence of a binary companion can decisively alter their evolution via binary interactions …

We study the impact of mass-transfer physics on the observable properties of binary black
hole populations that formed through isolated binary evolution. We used the POSYDON …

Context. The quest to detect dormant stellar-mass black holes (BHs) in massive binaries (ie
OB+ BH systems) is challenging; only a few candidates have been claimed to date, all of …

The mass-loss rates of massive helium stars are one of the major uncertainties in modern
astrophysics. Regardless of whether they were stripped by a binary companion or managed …