Now that detection of gravitational-wave signals from the coalescence of extra-galactic
compact binary star mergers has become nearly routine, it is intriguing to consider other …

We present results of an all-sky search for continuous gravitational waves (CWs), which can
be produced by fast spinning neutron stars with an asymmetry around their rotation axis …

Seven years after the first direct detection of gravitational waves, from the collision of two
black holes, the field of gravitational wave astronomy is firmly established. A first detection of …

Superradiance can trigger the formation of an ultralight boson cloud around a spinning black
hole. Once formed, the boson cloud is expected to emit a nearly periodic, long-duration …

Gravitational wave astronomy opened dramatically in September 2015 with the LIGO
discovery of a distant and massive binary black hole coalescence. The more recent …

The binary neutron star (BNS) observation GW170817 (Abbott et al. 2017d) was the first
multimessenger astronomy event to be jointly detected in gravitational waves (GWs) and at …

Transient gravitational waves (GWs) from compact binary coalescences (Abbott et al. 2019b,
2021a) have been directly observed by the Advanced Laser Interferometer Gravitational …

Continuous gravitational waves (CWs) are quasi-monochromatic signals expected to be
ever-present in the data of gravitational-wave (GW) detectors such as Advanced LIGO (Aasi …

Gravitational-wave (GW) multimessenger astronomy provides a unique view of the cosmos.
In this paper, we explain the procedures used during the second observing run of the …

Gravitational waves can probe the existence of planetary-mass primordial black holes.
Considering a mass range of [1 0− 7− 1 0− 2] M⊙, inspiraling primordial black holes could …