R. A. Alfaidi
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View article: GWTC-4.0: An Introduction to Version 4.0 of the Gravitational-Wave Transient Catalog
GWTC-4.0: An Introduction to Version 4.0 of the Gravitational-Wave Transient Catalog Open
The Gravitational-Wave Transient Catalog (GWTC) is a collection of short-duration (transient) gravitational-wave signals identified by the LIGO–Virgo–KAGRA Collaboration in gravitational-wave data produced by the eponymous detectors. The c…
View article: Search for Continuous Gravitational Waves from Known Pulsars in the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run
Search for Continuous Gravitational Waves from Known Pulsars in the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run Open
Continuous gravitational waves (CWs) emission from neutron stars carries information about their internal structure and equation of state, and it can provide tests of general relativity. We present a search for CWs from a set of 45 known p…
View article: Search for gravitational waves emitted from SN 2023ixf
Search for gravitational waves emitted from SN 2023ixf Open
We present the results of a search for gravitational-wave transients associated with core-collapse supernova SN 2023ixf, which was observed in the galaxy Messier 101 via optical emission on 2023 May 19th, during the LIGO-Virgo-KAGRA 15th E…
View article: A search using GEO600 for gravitational waves coincident with fast radio bursts from SGR 1935+2154
A search using GEO600 for gravitational waves coincident with fast radio bursts from SGR 1935+2154 Open
The magnetar SGR 1935+2154 is the only known Galactic source of fast radio bursts (FRBs). FRBs from SGR 1935+2154 were first detected by CHIME/FRB and STARE2 in 2020 April, after the conclusion of the LIGO, Virgo, and KAGRA Collaborations'…
View article: Observation of Gravitational Waves from the Coalescence of a 2.5–4.5 M <sub>⊙</sub> Compact Object and a Neutron Star
Observation of Gravitational Waves from the Coalescence of a 2.5–4.5 M <sub>⊙</sub> Compact Object and a Neutron Star Open
We report the observation of a coalescing compact binary with component masses 2.5–4.5 M ⊙ and 1.2–2.0 M ⊙ (all measurements quoted at the 90% credible level). The gravitational-wave signal GW230529_181500 was observed during the fourth ob…
View article: Swift-BAT GUANO follow-up of gravitational-wave triggers in the third LIGO-Virgo-KAGRA observing run
Swift-BAT GUANO follow-up of gravitational-wave triggers in the third LIGO-Virgo-KAGRA observing run Open
We present results from a search for X-ray/gamma-ray counterparts of gravitational-wave (GW) candidates from the third observing run (O3) of the LIGO-Virgo-KAGRA (LVK) network using the Swift Burst Alert Telescope (Swift-BAT). The search i…
View article: A Joint Fermi-GBM and Swift-BAT Analysis of Gravitational-wave Candidates from the Third Gravitational-wave Observing Run
A Joint Fermi-GBM and Swift-BAT Analysis of Gravitational-wave Candidates from the Third Gravitational-wave Observing Run Open
We present Fermi Gamma-ray Burst Monitor (Fermi-GBM) and Swift Burst Alert Telescope (Swift-BAT) searches for gamma-ray/X-ray counterparts to gravitational-wave (GW) candidate events identified during the third observing run of the Advance…
View article: Correction to: Search for subsolar-mass black hole binaries in the second part of Advanced LIGO's and Advanced Virgo's third observing run
Correction to: Search for subsolar-mass black hole binaries in the second part of Advanced LIGO's and Advanced Virgo's third observing run Open
We describe a search for gravitational waves from compact binaries with at\nleast one component with mass 0.2 $M_\\odot$ -- $1.0 M_\\odot$ and mass ratio $q\n\\geq 0.1$ in Advanced LIGO and Advanced Virgo data collected between 1 November\…
View article: Model-based Cross-correlation Search for Gravitational Waves from the Low-mass X-Ray Binary Scorpius X-1 in LIGO O3 Data
Model-based Cross-correlation Search for Gravitational Waves from the Low-mass X-Ray Binary Scorpius X-1 in LIGO O3 Data Open
We present the results of a model-based search for continuous gravitational waves from the low-mass X-ray binary Scorpius X-1 using LIGO detector data from the third observing run of Advanced LIGO and Advanced Virgo. This is a semicoherent…
View article: Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data
Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data Open
Results are presented for a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to allow for spin wandering. This search improves on previous HMM-based searc…
View article: All-sky search for gravitational wave emission from scalar boson clouds around spinning black holes in LIGO O3 data
All-sky search for gravitational wave emission from scalar boson clouds around spinning black holes in LIGO O3 data Open
This paper describes the first all-sky search for long-duration, quasimonochromatic gravitational-wave signals emitted by ultralight scalar boson clouds around spinning black holes using data from the third observing run of Advanced LIGO. …
View article: Constraints on the cosmic expansion history from GWTC-3
Constraints on the cosmic expansion history from GWTC-3 Open
We use 47 gravitational-wave sources from the Third LIGO-Virgo-KAGRA Gravitational-Wave Transient Catalog (GWTC-3) to estimate the Hubble parameter $H(z)$, including its current value, the Hubble constant $H_0$. Each gravitational-wave (GW…