Search results for "gamma ray: emission"

showing 3 items of 3 documents

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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Multifrequency Studies of the Peculiar Quasar 4C +21.35 during the 2010 Flaring Activity

2014

著者人数: 290名

AstrofísicaelectronPhotontorusAstrophysics01 natural scienceslaw.inventiongalaxies: active – gamma rays: general – quasars: general – quasars: individual (4C +21.35) – radiation mechanisms: non-thermalactive gamma rays: general quasars: general quasars: individual: 4C +21.35 radiation mechanisms: non-thermal [galaxies]lawblack hole: Kerrgalaxies: active; gamma rays: general; quasars: general; quasars: individual: 4C +21.35; radiation mechanisms: non-thermalopticalGalaxies: active; Gamma rays: general; Quasars: general; Quasars: individual (4C +21.35); Radiation mechanisms: non-thermal010303 astronomy & astrophysicsastro-ph.HEHigh Energy Astrophysical Phenomena (astro-ph.HE)Physicsenergy: highPhysicsphotonRadiusnon-thermal [radiation mechanisms]Synchrotrongamma ray: emissionactive [galaxies]astro-ph.COElectrónicaFísica nuclearElectricidadGalaxies: active; Gamma rays: general; Quasars: general; Quasars: individual (4C +21.35); Radiation mechanisms: non-thermal; Nuclear and High Energy PhysicsAstrophysics - High Energy Astrophysical Phenomenaquasars: individual (4C +21.35)Astrophysics - Cosmology and Nongalactic AstrophysicsFlareradiation mechanisms: non-thermal; galaxies: active; quasars: general; quasars: individual (4C +21.35); gamma rays: observationsNuclear and High Energy PhysicsCosmology and Nongalactic Astrophysics (astro-ph.CO)astro-ph.GAAstrophysics::High Energy Astrophysical Phenomenaeducationgalaxies: activeFOS: Physical sciencesquasars: individual: 4C +21.35Astrophysics::Cosmology and Extragalactic AstrophysicsVHEGLASTemission: modelTelescopeX-rayquasars: general0103 physical sciencessynchrotrongalaxies: active gamma rays: general quasars: general quasars: individual: 4C +21.35 radiation mechanisms: non-thermalquasarflux: densityindividual: 4C +21.35 [quasars]Astrophysics::Galaxy AstrophysicsAstronomia Observacionsgeneral [quasars]010308 nuclear & particles physicsAstronomy and AstrophysicsQuasargamma rays: generalradiation mechanisms: non-thermalAstrophysics - Astrophysics of GalaxiesMAGICRotating black holeSpace and Planetary SciencegravitationAstrophysics of Galaxies (astro-ph.GA)ddc:520spectral[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]general [gamma rays]Fermi Gamma-ray Space Telescope
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An Indication of Anisotropy in Arrival Directions of Ultra-high-energy Cosmic Rays through Comparison to the Flux Pattern of Extragalactic Gamma-Ray …

2018

A new analysis of the dataset from the Pierre Auger Observatory provides evidence for anisotropy in the arrival directions of ultra-high-energy cosmic rays on an intermediate angular scale, which is indicative of excess arrivals from strong, nearby sources. The data consist of 5514 events above 20 EeV with zenith angles up to 80 deg recorded before 2017 April 30. Sky models have been created for two distinct populations of extragalactic gamma-ray emitters: active galactic nuclei from the second catalog of hard Fermi-LAT sources (2FHL) and starburst galaxies from a sample that was examined with Fermi-LAT. Flux-limited samples, which include all types of galaxies from the Swift-BAT and 2MASS …

Astronomy[ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph]Ciencias Físicascosmic radiation: densitygalaxies: starburstAstrophysics01 natural sciences//purl.org/becyt/ford/1 [https]methods: data analysis Supporting material: FITS fileUltra-high-energy cosmic raydata analysis [Methods]Anisotropycosmic radiation: model010303 astronomy & astrophysicscosmic rayHigh Energy Astrophysical Phenomena (astro-ph.HE)PhysicsOBSERVATÓRIOSSettore FIS/01 - Fisica SperimentaleAstrophysics::Instrumentation and Methods for Astrophysicsastroparticle physicastroparticle physics; cosmic rays; galaxies: active; galaxies: starburst; methods: data analysis Supporting material: FITS files; Astronomy and Astrophysics; Space and Planetary ScienceAugerobservatorygamma ray: emissiondata analysis Supporting material: FITS file [methods]astroparticle physicsAstrophysics - High Energy Astrophysical PhenomenaCIENCIAS NATURALES Y EXACTASAstrophysics - Cosmology and Nongalactic AstrophysicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Active galactic nucleusactive [Galaxies]Astrophysics::High Energy Astrophysical Phenomenagalaxies: activeData analysisFOS: Physical sciencesStarburstCosmic rayanisotropyAstrophysics::Cosmology and Extragalactic AstrophysicsOtras Ciencias FísicasGLASTcosmic raysastroparticle physics; cosmic rays; galaxies: active; galaxies: starburst; methods: data analysis Supporting material: FITS files0103 physical sciencesHigh Energy Physicscosmic radiation: UHEAGNCosmic raysAstrophysics::Galaxy AstrophysicsZenithmethods: data analysis Supporting material: FITS filesPierre Auger ObservatorySPECTRUM010308 nuclear & particles physicsIsotropyFísicaAstronomy and Astrophysics//purl.org/becyt/ford/1.3 [https]Astronomy and Astrophysicmethods: data analysisGalaxyfluxstarburst [Galaxies]Space and Planetary ScienceExperimental High Energy PhysicsActive galaxiesgalaxyAstroparticle physics[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]statistical
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