The exploration of the universe has recently entered a new era thanks to the multi-
messenger paradigm, characterized by a continuous increase in the quantity and quality of …

Abstract The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders
about the fundamental theory of nature at play in the extreme gravity regime, where the …

The most conservative interpretation of the nHz stochastic gravitational wave background
(SGWB) discovered by NANOGrav and other pulsar timing array (PTA) collaborations is …

This Horizon Study describes a next-generation ground-based gravitational-wave
observatory: Cosmic Explorer. With ten times the sensitivity of Advanced LIGO, Cosmic …

We report on gravitational-wave discoveries from compact binary coalescences detected by
Advanced LIGO and Advanced Virgo in the first half of the third observing run (O3a) between …

On May 21, 2019 at 03: 02: 29 UTC Advanced LIGO and Advanced Virgo observed a short
duration gravitational-wave signal, GW190521, with a three-detector network signal-to-noise …

Gravitational waves enable tests of general relativity in the highly dynamical and strong-field
regime. Using events detected by LIGO-Virgo up to 1 October 2019, we evaluate the …

The ever-increasing number of detections of gravitational waves (GWs) from compact
binaries by the Advanced LIGO and Advanced Virgo detectors allows us to perform ever …

We analyze cosmic superstring models in light of NANOGrav 15-year pulsar timing data. A
good fit is found for a string tension G μ∼ 10-12–10-11 and a string intercommutation …

We report results of a search for an isotropic gravitational-wave background (GWB) using
data from Advanced LIGO's and Advanced Virgo's third observing run (O3) combined with …