C Gray

Directional search for persistent gravitational waves: Results from the first part of LIGO-Virgo-KAGRA’s fourth observing run

A.G Abac, I Abouelfettouh, F Acernese, K Ackley et autres

The angular distribution of gravitational-wave power from persistent sources may exhibit anisotropies arising from the large-scale structure of the Universe.This motivates directional searches for astrophysical and cosmological gravitational-wave backgrounds, as well as continuous-wave emitters.We present results of such a search using data …

fr (code pays fourni par la source)

All-sky search for continuous gravitational-wave signals from unknown neutron stars in binary systems in the first part of the fourth LIGO-Virgo-KAGRA observing run

A.G Abac, I Abouelfettouh, F Acernese, K Ackley et autres

International audience

fr (code pays fourni par la source)

Cosmological and High Energy Physics implications from gravitational-wave background searches in LIGO-Virgo-KAGRA's O1-O4a runs

A.G Abac, I Abouelfettouh, F Acernese, K Ackley et autres

International audience

fr (code pays fourni par la source)

GWTC-4.0: Constraints on the Cosmic Expansion Rate and Modified Gravitational-wave Propagation

A.G Abac, I Abouelfettouh, F Acernese, K Ackley et autres

International audience

fr (code pays fourni par la source)

Constraints on Gravitational Waves from the 2024 Vela Pulsar Glitch

A.G Abac, R Abbott, I. Abouelfettouh, F. Acernese et autres

Abstract Among known neutron stars, the Vela pulsar is one of the best targets for gravitational-wave searches. It is also one of the most prolific in terms of glitches, which are sudden frequency changes in a pulsar’s rotation. Such glitches could cause …

fr (code pays fourni par la source)

GW230814: Investigation of a Loud Gravitational-wave Signal Observed with a Single Detector

Adrian Abac, R. Abbott, I. Abouelfettouh, F. Acernese et autres

Abstract GW230814, detected by the LIGO Livingston observatory with a signal-to-noise ratio of 42.4, represents the loudest gravitational-wave signal in the GWTC-4.0 catalog. Its source is consistent with a binary black hole coalescence with component masses m 1 = 33 . 7 …

Measurement of distributions sensitive to the underlying event in inclusive Z boson production in pp collisions at s = 13 TeV with the ATLAS detector

G. Aad, B. Abbott, D. C. Abbott, O. Abdinov et autres

Abstract: This paper presents measurements of charged-particle distributions sensitive to the properties of the underlying event in events containing a Z boson decaying into a muon pair. The data were obtained using the ATLAS detector at the LHC in proton–proton collisions at …

Full Band All-sky Search for Periodic Gravitational Waves in the O1 LIGO Data

T K ND TPC collaboration, T. D. Abbott, R (15485435) Abbott, T. D. Abbott et autres

We report on a new all-sky search for periodic gravitational waves in the frequency band 475-2000 Hz and with a frequency time derivative in the range of [-1.0,+0.1]×10-8 Hz/s. Potential signals could be produced by a nearby spinning and slightly nonaxisymmetric isolated …

GW170817: Implications for the Stochastic Gravitational-Wave Background from Compact Binary Coalescences

T K ND TPC collaboration, T. D. Abbott, R (15485435) Abbott, T. D. Abbott et autres

The LIGO Scientific and Virgo Collaborations have announced the first detection of gravitational waves from the coalescence of two neutron stars. The merger rate of binary neutron stars estimated from this event suggests that distant, unresolvable binary neutron stars create a significant …