We present our current best estimate of the plausible observing scenarios for the Advanced
LIGO, Advanced Virgo and KAGRA gravitational-wave detectors over the next several years …

This article reviews current understanding of primordial black holes (PBHs), with particular
focus on those massive examples ($\gtrsim $$10^{15}~{\rm g} $) which remain at the …

The third Gravitational-Wave Transient Catalog (GWTC-3) describes signals detected with
Advanced LIGO and Advanced Virgo up to the end of their third observing run. Updating the …

We describe the observation of GW170104, a gravitational-wave signal produced by the
coalescence of a pair of stellar-mass black holes. The signal was measured on January 4 …

Following a major upgrade, the two advanced detectors of the Laser Interferometer
Gravitational-wave Observatory (LIGO) held their first observation run between September …

We report the observation of a gravitational-wave signal produced by the coalescence of two
stellar-mass black holes. The signal, GW151226, was observed by the twin detectors of the …

The first observational run of the Advanced LIGO detectors, from September 12, 2015 to
January 19, 2016, saw the first detections of gravitational waves from binary black hole …

The second-generation of gravitational-wave detectors are just starting operation, and have
already yielding their first detections. Research is now concentrated on how to maximize the …

On September 14, 2015 at 09: 50: 45 UTC the two detectors of the Laser Interferometer
Gravitational-Wave Observatory simultaneously observed a transient gravitational-wave …

The second LIGO/Virgo observing run (O2) spanned 9 months between 2016 November
and 2017 August, building on the first, 4-month run (O1) in 2015. The LIGO/Virgo …