Search results for "Gravitational wave detectors"

showing 4 items of 4 documents

Properties of the Binary Neutron Star Merger GW170817

2019

On August 17, 2017, the Advanced LIGO and Advanced Virgo gravitational-wave detectors observed a low-mass compact binary inspiral. The initial sky localization of the source of the gravitational-wave signal, GW170817, allowed electromagnetic observatories to identify NGC 4993 as the host galaxy. In this work, we improve initial estimates of the binary's properties, including component masses, spins, and tidal parameters, using the known source location, improved modeling, and recalibrated Virgo data. We extend the range of gravitational-wave frequencies considered down to 23 Hz, compared to 30 Hz in the initial analysis. We also compare results inferred using several signal models, which ar…

AstrofísicaGravitacióneutron star: binaryAstronomyGeneral Physics and AstronomyBinary numberAstrophysicsELECTROMAGNETIC COUNTERPARTspin01 natural sciencesGeneral Relativity and Quantum CosmologyGRAVITATIONAL-WAVESlocalization010305 fluids & plasmasGravitational wave detectorsEQUATIONenergy: densityLIGOGEO600QCastro-ph.HESettore FIS/01PhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)GAMMA-RAY BURSTSSettore FIS/05PhysicsEquations of stateGravitational effectsGravitational-wave signalsDeformability parameterAmplitudePhysical SciencesPhysical effectsINSPIRALING COMPACT BINARIES[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]Spectral energy densityAstrophysics - High Energy Astrophysical PhenomenaPARAMETER-ESTIMATIONBinary neutron starsdata analysis methodgr-qcQC1-999Physics MultidisciplinaryFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)Astrophysics::Cosmology and Extragalactic AstrophysicsGravity wavesBayesianGravimeterselectromagnetic field: productionPhysics and Astronomy (all)galaxy: binary0103 physical sciencesddc:530SDG 7 - Affordable and Clean Energy010306 general physicsgravitational radiation: frequencySTFCAstrophysics::Galaxy Astrophysicsequation of stateLIGHT CURVESEquation of stateScience & Technology/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energySpinsgravitational radiationRCUKSpectral densityKILONOVATRANSIENTSbinary: compactStarsGEO600GalaxyLIGOgravitational radiation detectorNeutron starVIRGOPhysics and Astronomygravitational radiation: emissionRADIATIONBayesian AnalysisDewey Decimal Classification::500 | Naturwissenschaften::530 | Physik[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
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The advanced Virgo longitudinal control system for the O2 observing run

2020

Following a successful period of data-taking between 2006 and 2011, the Virgo gravitational-wave detector was taken offline for a major upgrade. The changes made to the instrument significantly increased the complexity of the control systems and meant that an extended period of commissioning was required to reach a sensitivity appropriate for science data-taking. This commissioning period was completed in July of 2017 and the second-generation Advanced Virgo detector went on to join the Advanced LIGO detectors in the O2 science run in August of the same year. The upgraded detector was approximately twice as sensitive to binary neutron star mergers as the first-generation instrument. During …

neutron star: binaryPhysics::Instrumentation and DetectorsAstronomycavity: opticalSuspended optical cavities01 natural sciencesGravitational wave detectorsoff-lineGravitational wave detectors; Interferometer; Suspended optical cavities; Control loopsControl loopSuspended optical cavitieLIGOInterferometer010303 astronomy & astrophysicsdetectorsSettore FIS/01Physics[PHYS]Physics [physics]DetectorAstrophysics::Instrumentation and Methods for AstrophysicsGravitational wave detectors Interferometer Suspended optical cavities Control loopsGravitational wave detectorUpgrade[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]upgradecontrol systemGravitational wavelongitudinalAstrophysics::High Energy Astrophysical PhenomenainterferometerAstrophysics::Cosmology and Extragalactic Astrophysicscontrol loops; gravitational wave detectors; interferometer; suspended optical cavitiesgravitational radiation: direct detectionGeneral Relativity and Quantum CosmologySettore FIS/05 - Astronomia e AstrofisicaBinary black holebinary: coalescence0103 physical sciencesControl loops[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]010308 nuclear & particles physicsGravitational wavegravitational radiationAstronomyAstronomy and AstrophysicssensitivityLIGOgravitational radiation detectordetector: sensitivityNeutron star* Automatic Keywords *VIRGOblack hole: binaryControl systemgravitational radiation: emission[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
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GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral

2017

On August 17, 2017 at 12-41:04 UTC the Advanced LIGO and Advanced Virgo gravitational-wave detectors made their first observation of a binary neutron star inspiral. The signal, GW170817, was detected with a combined signal-to-noise ratio of 32.4 and a false-alarm-rate estimate of less than one per 8.0×104 years. We infer the component masses of the binary to be between 0.86 and 2.26 M, in agreement with masses of known neutron stars. Restricting the component spins to the range inferred in binary neutron stars, we find the component masses to be in the range 1.17-1.60 M, with the total mass of the system 2.74-0.01+0.04M. The source was localized within a sky region of 28 deg2 (90% probabili…

neutron star: binary[ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph]X-ray binaryADVANCED LIGOAstrophysicsKilonovagravitational waves; LIGO; binary neutron star inspiralspin01 natural sciencesLIGOGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)QCQBHigh Energy Astrophysical Phenomena (astro-ph.HE)Electromagnetic observationsGravitational-wave signals3100 General Physics and AstronomyPoint MassesAstrophysics - High Energy Astrophysical PhenomenaBlack-Hole MergersBinary neutron starsBlack HolesX-ray bursterCoalescing BinariesAstrophysics::High Energy Astrophysical Phenomena10192 Physics InstituteGeneral Relativity and Quantum Cosmology (gr-qc)Gravity wavesGravitational wavesNeutron starsPhysics and Astronomy (all)ddc:530Electromagnetic spectraNeutrons010308 nuclear & particles physicsVirgoGamma raysAstronomyRCUKVIRGOelectromagneticgravitational radiation: emissionStellar black holeGamma-ray burst[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]Compact Binariesbinary: masscosmological modelAstronomyGeneral Physics and AstronomyAstrophysicsneutron starsGamma ray burstsGeneral Relativity and Quantum CosmologyGravitational wave detectorsUniverseDENSE MATTER010303 astronomy & astrophysicsastro-ph.HEPhysicsSignal to noise ratioSettore FIS/01 - Fisica SperimentaleGravitational effectsFalse alarm rateEQUATION-OF-STATEMergers and acquisitionsgravitational waves[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]530 PhysicsMERGERSGeneral Relativity and Quantum Cosmology; General Relativity and Quantum Cosmology; astro-ph.HEFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic Astrophysicsgamma ray: burstgravitational radiation: direct detectionMerging[ PHYS.GRQC ] Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]GAMMA-RAY BURSTLIGO (Observatory)binary: coalescenceGravitational waves neutron stars gamma-ray burst LIGO Virgo0103 physical sciencesGW151226MASSESSTFCAstrophysics::Galaxy AstrophysicsPhysiqueGravitational wavegravitational radiationPULSARgravitational radiation detectorNeutron starPhysics and AstronomygravitationRADIATIONDewey Decimal Classification::500 | Naturwissenschaften::530 | Physikbinary neutron star inspiralSignal detectionPHYS REV LETT PHYSICAL REVIEW LETTERS
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Search for Gravitational Waves Associated with Gamma-Ray Bursts Detected by Fermi and Swift during the LIGO-Virgo Run O3a

2022

Abbott, R., et al. (LIGO and VIRGO Collaboration)

neutron star: binaryGravitational waves(678)ELECTROMAGNETIC COUNTERPARTSBinary numberAstrophysics01 natural sciencesLIGOHigh-Energy Phenomena and Fundamental PhysicsQCSUPERNOVAQBHigh Energy Astrophysical Phenomena (astro-ph.HE)Settore FIS/01education.field_of_study[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph]Black holesSettore FIS/0506 humanities and the artsGRBEnergy InjectionSearch for gravitational wave transients associated to GRBs - Fermi and Swift satellitesAFTERGLOWPhysical SciencesRELATIVISTIC JETSAstrophysics - High Energy Astrophysical PhenomenaSwiftGravitational waveBlack-Hole330Evolutiongr-qcGamma Ray Burst LIGO Virgo Gravitational WavesAstrophysics::High Energy Astrophysical PhenomenaGeneral Relativity and Quantum Cosmology (gr-qc)0603 philosophy ethics and religionGravitational-wave astronomyNeutron starsENERGY INJECTIONCORE-COLLAPSEeducationGamma-ray burstScience & TechnologyCore-CollapseVirgoRCUKAstronomy and AstrophysicstriggerLuminosity FunctionDewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie KartographieGamma Ray BurstSpace and Planetary ScienceBLACK-HOLEddc:520gravitational wave astronomyGravitational wave astronomyGamma-ray burst[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]LIGO(920)Fermi Gamma-ray Space TelescopeAstronomyAstrophysicsGeneral Relativity and Quantum Cosmologyneutron starsENERGYGravitational wave detectorsGamma-ray bursts(629)Neutron Stars Mergers Gravitational Waves010303 astronomy & astrophysicsgravitational waves; gamma ray bursts; LIGO; Virgo; Fermi; SwiftCompact binary stars(283)astro-ph.HEPhysicscompact binary starsgamma-ray burstsgamma-ray bursts ; gravitational waves; LIGO; Virgogravitational waves060302 philosophy[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]PRECURSOR ACTIVITYGravitational wave astronomy(675)Gamma-ray burstsGW_HIGHLIGHT[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]PopulationCompact binary starssatelliteFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsAstronomy & Astrophysicsgamma ray: burstMASS1STGLASTGamma-ray bursts; Gravitational wave astronomy; Gravitational waves; Gravitational wave detectors0103 physical sciencesSTFCFermigravitational waves; gamma-ray bursts; LIGO; Virgo; Fermi; SwiftGravitational wavegravitational radiationgamma ray burstsgamma-ray burts--black holesLIGOEVOLUTIONOBSERVING RUNNeutron stars(1108)Neutron starPhysics and Astronomy[SDU]Sciences of the Universe [physics]LUMINOSITY FUNCTIONBlack holes(162)INJECTIONEMISSION
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