0000000000039397

AUTHOR

M. Tápai

showing 5 related works from this author

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

2018

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 astrophysical stochastic gravitational-wave background. The binary neutron star background will add to the background from binary black holes, increasing the amplitude of the total astrophysical background relative to previous expectations. In the Advanced LIGO-Virgo frequency band most sensitive to stochastic backgrounds (near 25 Hz), we predict a total astrophysical background with amplitude $\Omega_{\rm…

Design sensitivityneutron star: binarygravitational radiation: stochasticAstronomyX-ray binaryGeneral Physics and AstronomyAstrophysicsAstrophysics01 natural sciencesGeneral Relativity and Quantum CosmologylocalizationGravitational wave backgroundGravitational Waves Neutron Stars Stochastic Background Virgo LIGOblack holeLIGOstochastic modelQCQBPhysicsGAMMA-RAY BURSTSSignal to noise ratioStochastic systemsBlack holesGravitational effectsarticleAstrophysics::Instrumentation and Methods for AstrophysicsComputingMethodologies_DOCUMENTANDTEXTPROCESSING[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]Gravitational wave sources Experimental studies of gravity Gravitational WavesGravitationBinary neutron starsX-ray bursterBinsAstrophysics::High Energy Astrophysical PhenomenaMERGERSFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)Astrophysics::Cosmology and Extragalactic AstrophysicsGravity wavesgravitational radiation: direct detectionBinary pulsarNeutron starsSTAR-FORMATIONPhysics and Astronomy (all)General Relativity and Quantum CosmologyBinary black holebinary: coalescence0103 physical sciencesFrequency bandsddc:530RATESINTERFEROMETERS010306 general physicsAstrophysics::Galaxy AstrophysicsNeutronsGravitational Waves010308 nuclear & particles physicsGravitational waveVirgogravitational radiation: backgroundgravitational radiationAstronomyNeutron Stars530 Physikbinary: compactsensitivityStarsLIGObackground: stochasticEVOLUTIONsignal noise ratioVIRGOPhysics and Astronomyblack hole: binarygravitational radiation: emissionStellar black holeStochastic BackgroundDewey Decimal Classification::500 | Naturwissenschaften::530 | PhysikHIGH-REDSHIFTneutron star: coalescencePhysical Review Letters
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Search for Tensor, Vector, and Scalar Polarizations in the Stochastic Gravitational-Wave Background

2018

The detection of gravitational waves with Advanced LIGO and Advanced Virgo has enabled novel tests of general relativity, including direct study of the polarization of gravitational waves. While general relativity allows for only two tensor gravitational-wave polarizations, general metric theories can additionally predict two vector and two scalar polarizations. The polarization of gravitational waves is encoded in the spectral shape of the stochastic gravitational-wave background, formed by the superposition of cosmological and individually-unresolved astrophysical sources. Using data recorded by Advanced LIGO during its first observing run, we search for a stochastic background of generic…

AstronomyTestingdetectionGeneral Physics and AstronomyEFFICIENTTESTING RELATIVISTIC GRAVITYTensorsSpectral shapes01 natural sciencesGeneral Relativity and Quantum CosmologyGravitational wave backgroundEnergy densityTOOLQCComputingMilieux_MISCELLANEOUSstochastic modelMathematical physicsQBPhysics[PHYS]Physics [physics]Stochastic systemsGravitational effectsarticleVectorsPolarization (waves)gravitational wavesastro-ph.CO[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]Astrophysics - Cosmology and Nongalactic AstrophysicsGeneral RelativityCosmology and Nongalactic Astrophysics (astro-ph.CO)General relativitygr-qcFOS: Physical sciencesexperimental studies of gravityGeneral Relativity and Quantum Cosmology (gr-qc)Gravity wavesRelativityReference frequencyPhysics and Astronomy (all)General Relativity and Quantum CosmologyTheory of relativityScalar modesTests of general relativity0103 physical sciencesAdvanced LIGOddc:530Tensor010306 general physicsSTFCGravitational Wavespolarization010308 nuclear & particles physicsGravitational waveRCUKAstrophysical sourcesLIGOPhysics and AstronomygravitationRADIATIONStochastic BackgroundDewey Decimal Classification::500 | Naturwissenschaften::530 | Physik[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]cosmologyGravitational Waves Stochastic Background Advanced LIGO
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All-sky search for long-duration gravitational wave transients in the first Advanced LIGO observing run

2018

Made available in DSpace on 2018-11-26T17:45:14Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-03-22 Australian Research Council Council of Scientific and Industrial Research of India Department of Science and Technology, India Science AMP; Engineering Research Board (SERB), India Ministry of Human Resource Development, India Spanish Agencia Estatal de Investigacion Vicepresidencia i Conselleria d'Innovacio, Recerca i Turisme Conselleria d'Educacio i Universitat del Govern de les Illes Balears Conselleria d'Educacio, Investigacio, Cultura i Esport de la Generalitat Valenciana National Science Centre of Poland Swiss National Science Foundation (SNSF) Russian Foundation for Basic Rese…

Physics and Astronomy (miscellaneous)Astrophysics::High Energy Astrophysical PhenomenaAstronomyFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)AstrophysicsLIGO-VirgoMagnetar01 natural sciencesGeneral Relativity and Quantum CosmologyGravitational waves long transients LIGOGravitational wavesGeneral Relativity and Quantum CosmologyUPPER LIMITSSearch algorithmSIGNALS0103 physical sciencesWaveformlong transientsHigh Energy PhysicsLIGO010306 general physicsgravitational wave010303 astronomy & astrophysicsComputingMilieux_MISCELLANEOUSQCQBHigh Energy Astrophysical Phenomena (astro-ph.HE)PhysicsLIGO-Virgo; gravitational waves; long duration transient[PHYS]Physics [physics]Gravitational wavelong duration transientLIGOgravitational waves; LIGO-Virgo; long duration transient; Physics and Astronomy (miscellaneous)Black holeMODELNeutron starAmplitudegravitational wavesBLACK-HOLEComputingMethodologies_DOCUMENTANDTEXTPROCESSINGRADIATIONNEUTRINOAstrophysics - High Energy Astrophysical Phenomena[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
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GW190412: Observation of a binary-black-hole coalescence with asymmetric masses

2020

LIGO Scientific Collaboration and Virgo Collaboration: et al.

Physics and Astronomy (miscellaneous)AstronomyGravitational wave detection Gravitational wave sources Gravitational waves Astronomical black holesagn discsAstrophysicsdetector: network01 natural sciencesGeneral Relativity and Quantum CosmologyPhysics Particles & Fieldsstar-clustersgravitational waves black holesgravitational waves; black holesAGN DISCSgravitational waves; black holes; LIGO; Virgoblack holegeneral relativityLIGOgravitational waveQCQBPhysicsSettore FIS/01astro-ph.HEHigh Energy Astrophysical Phenomena (astro-ph.HE)GRAVITATIONAL WAVE-FORMSPROGENITORSCOMPACT BINARIESblack hole: spinPhysicsPERTURBATIONSgravitational wavesPhysical Sciences[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]Gravitational wave detectionAstrophysics - High Energy Astrophysical PhenomenaMETALLICITYmass: asymmetrymetallicitydata analysis methodGeneral relativityMERGERSgr-qcAstrophysics::High Energy Astrophysical PhenomenamultipolePREDICTIONSFOS: Physical sciencesgravitational wavesblack holesGeneral Relativity and Quantum Cosmology (gr-qc)Astronomy & Astrophysicsgravitational radiation: direct detectionGravitational wavesGeneral Relativity and Quantum CosmologyTheory of relativityBinary black holeSettore FIS/05 - Astronomia e AstrofisicaAstronomical black holesbinary: coalescence0103 physical sciencesnumerical methodsddc:530STAR-CLUSTERS010306 general physicsnumerical calculationsSTFCAstrophysiqueGravitational wave sourcesScience & Technologymass: solar010308 nuclear & particles physicsGravitational waveVirgogravitational radiationRCUKblack hole: massMass ratioblack holesLIGOEVOLUTIONgravitational radiation detectorBlack holedetector: sensitivityPhysics and Astronomyblack hole: binaryrelativity theorygravitational radiation: emissionmass ratioMultipole expansion[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]Astrophysics and astroparticle physics
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Search for Gravitational-wave Signals Associated with Gamma-Ray Bursts during the Second Observing Run of Advanced LIGO and Advanced Virgo

2019

We present the results of targeted searches for gravitational-wave transients associated with gamma-ray bursts during the second observing run of Advanced LIGO and Advanced Virgo, which took place from 2016 November to 2017 August. We have analyzed 98 gamma-ray bursts using an unmodeled search method that searches for generic transient gravitational waves and 42 with a modeled search method that targets compact-binary mergers as progenitors of short gamma-ray bursts. Both methods clearly detect the previously reported binary merger signal GW170817, with p-values of <9.38 10-6 (modeled) and 3.1 10-4 (unmodeled). We do not find any significant evidence for gravitational-wave signals associate…

Burst astrophysicAstrofísicaneutron star: binary010504 meteorology & atmospheric sciencesBinary numberAstrophysics01 natural sciencesLIGOQCSUPERNOVArelativistic jetsQBHigh Energy Astrophysical Phenomena (astro-ph.HE)Settore FIS/01counterpartGRBGravitational waves (678)Physical SciencesRELATIVISTIC JETSAstrophysics - High Energy Astrophysical PhenomenaGravitational waveGravitationstarsblack-holeAstrophysics::High Energy Astrophysical PhenomenaGeneral Relativity and Quantum Cosmology (gr-qc)precursor activityGravitational wavesSettore FIS/05 - Astronomia e AstrofisicasupernovaCORE-COLLAPSEGamma-ray burstGravitational wave sourcesScience & TechnologyVirgoRCUKAstronomy and AstrophysicsHigh energy astrophysics (739)RedshiftDewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie Kartographiedetector: sensitivityVIRGOSpace and Planetary Sciencegravitational radiation: emissionBLACK-HOLEddc:520Gravitational wave astronomyGamma-ray burst[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]STARSGravitacióAstronomySignalGeneral Relativity and Quantum CosmologyBurst astrophysicslocalizationemission010303 astronomy & astrophysicsPhysicsDetectorGamma-ray bursts (629)[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]Gravitational wave sourcePRECURSOR ACTIVITYGamma-ray burstsLIGO (920)High energy astrophysicsdata analysis methodBurst astrophysics (187)FOS: Physical sciencesAstrophysics::Cosmology and Extragalactic Astrophysicsgamma ray: burstAstronomy & AstrophysicsMASSgravitational radiation: direct detectionGravitational wave astronomy Gravitational wave sources LIGO; Gravitational waves Gamma-ray bursts Burst astrophysics High energy astrophysicsGravitational wave astronomy (675)electromagnetic field: production0103 physical sciencesnumerical calculationsGRB; gravitational waves; LIGO; VirgoSTFC0105 earth and related environmental sciencesgravitational wavesneutron starsGravitational waveCOUNTERPARTgravitational radiationLIGOcore-collapsegravitational radiation detectorGravitational wave sources (677)radiationNeutron starPhysics and AstronomymassRADIATIONEMISSIONGravitational wave astronomy; Gravitational wave sources; LIGO; Gravitational waves; Gamma-ray bursts; Burst astrophysics; High energy astrophysics
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