0000000001227140

AUTHOR

E Chase

showing 2 related works from this author

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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Gravitational Waves and Gamma-Rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A

2017

On 2017 August 17, the gravitational-wave event GW170817 was observed by the Advanced LIGO and Virgo detectors, and the gamma-ray burst (GRB) GRB 170817A was observed independently by the Fermi Gamma-ray Burst Monitor, and the Anticoincidence Shield for the Spectrometer for the International Gamma-Ray Astrophysics Laboratory. The probability of the near-simultaneous temporal and spatial observation of GRB 170817A and GW170817 occurring by chance is $5.0\times 10^{-8}$. We therefore confirm binary neutron star mergers as a progenitor of short GRBs. The association of GW170817 and GRB 170817A provides new insight into fundamental physics and the origin of short gamma-ray bursts. We use the ob…

AstrofísicaGravitacióneutron star: binaryclose [binaries]Astronomy[ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph]BATSE OBSERVATIONSgamma-ray burst: generalEQUIVALENCE PRINCIPLEEXTENDED EMISSIONastro-ph.HE; astro-ph.HEAstrophysicsKilonovageneral [gamma-ray burst]01 natural sciences7. Clean energyGeneral Relativity and Quantum Cosmologyphoton: velocityPROMPT EMISSIONLIGOclose gamma-ray burst: general gravitational waves [binaries]gravitational wave010303 astronomy & astrophysicsGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)BURST SPECTRAQCQBPhysicsastro-ph.HEHigh Energy Astrophysical Phenomena (astro-ph.HE)binaries: closeGRBEQUATION-OF-STATEviolation: Lorentzgamma ray: emissiongravitational wavesAstrophysics - High Energy Astrophysical PhenomenaGWradiation: electromagneticAfterglow Light CurvesAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)Astrophysics::Cosmology and Extragalactic Astrophysicsgamma ray: burstinvariance: LorentzGW GRB LIGO Virgo Fermi BNSGLASTOptical Afterglows0103 physical sciencesgamma ray: detectorBinaries: close; gamma-ray burst: general; gravitational wavesSTFCFermi010308 nuclear & particles physicsGravitational waveVirgogravitational radiationRCUKAstronomy and AstrophysicsAstronomy and Astrophysictime delaysensitivityShapiro delayLIGORedshiftNeutron starVIRGOPhysics and AstronomyHOST GALAXYCPT VIOLATION13. Climate actiongravitationSpace and Planetary ScienceLUMINOSITY FUNCTIONVIEWING ANGLEbinaries: close; gamma-ray burst: general; gravitational waves; Astronomy and Astrophysics; Space and Planetary ScienceBNSspectrometerGamma-ray burst[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]redshift: measuredFermi Gamma-ray Space TelescopeAstrophysical Journal Letters
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