Abstract Primordial Black Holes (PBHs) are a viable candidate to comprise some or all of the
dark matter and provide a unique window into the high-energy physics of the early universe …

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 …

Recent population studies have searched for a subpopulation of primordial black holes
(PBHs) in the gravitational-wave (GW) events so far detected by LIGO/Virgo/KAGRA (LVK) …

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 …

We describe the discovery of a solar neighborhood (d= 468 pc) binary system with a main-
sequence sunlike star and a massive noninteracting black hole candidate. The spectral …

The interaction of a runaway supermassive black hole (SMBH) with the circumgalactic
medium (CGM) can lead to the formation of a wake of shocked gas and young stars behind …

Understanding the astrophysical phenomena involving compact objects requires an insight
about the engine behind the core-collapse supernovae (SNe) and the fate of the stellar …

We report the discoveries of low-mass free-floating planet (FFP) candidates from the
analysis of 2006–2014 MOA-II Galactic bulge survey data. In this data set, we found 6111 …