0000000000313783

AUTHOR

Ofelia Durante

showing 3 related works from this author

Search for anisotropic gravitational-wave backgrounds using data from Advanced LIGO and Advanced Virgo's first three observing runs

2021

We report results from searches for anisotropic stochastic gravitational-wave backgrounds using data from the first three observing runs of the Advanced LIGO and Advanced Virgo detectors. For the first time, we include Virgo data in our analysis and run our search with a new efficient pipeline called {\tt PyStoch} on data folded over one sidereal day. We use gravitational-wave radiometry (broadband and narrow band) to produce sky maps of stochastic gravitational-wave backgrounds and to search for gravitational waves from point sources. A spherical harmonic decomposition method is employed to look for gravitational-wave emission from spatially-extended sources. Neither technique found eviden…

gravitational radiation: anisotropyPhysics and Astronomy (miscellaneous)gravitational radiation: stochasticAstronomyAstrophysics01 natural sciencesGeneral Relativity and Quantum CosmologyPhysics Particles & FieldsCosmology & Astrophysicsenergy: fluxenergy: densitygravitational radiation: energyLIGOQCQBPhysicsSettore FIS/01Spectral indexPhysicsGalactic CenterAmplitudeGeneral relativitySidereal timePhysical Sciences[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]gravitational radiation: power spectrumGravitationdata analysis methodAnisotropic stochastic gravitational-wave backgroundExperimental studies of gravityFOS: Physical sciencesO3O2General Relativity and Quantum Cosmology (gr-qc)Astronomy & AstrophysicsStochastic Background Gravitational Waves LIGO Virgo O1 O2 O3O1Gravitational wavesGeneral Relativity and Quantum CosmologyUPPER LIMITSstatistical analysis0103 physical sciencesadvanced LIGO and Virgoddc:530KAGRAKAGRACosmology & Astrophysics010306 general physicsSTFCgravitational waves; LIGO; VirgoGravitational WavesScience & Technology010308 nuclear & particles physicsGravitational waveVirgogravitational radiation: backgroundRCUKGalaxyLIGOVIRGOgravitational radiation: emissionspectrum: densityRADIATIONCROSS-CORRELATION SEARCHStochastic BackgroundDewey Decimal Classification::500 | Naturwissenschaften::530 | PhysikgalaxyExperimental studies of gravity; General relativity; Gravitational waves
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GW190521: A Binary Black Hole Merger with a Total Mass of 150  M⊙

2020

LIGO Scientific Collaboration and Virgo Collaboration: et al.

AstronomyGeneral Physics and Astronomydetector: networkAstrophysicsGravitational waves; Binary black holes Intermediate mass black holes01 natural sciencesGeneral Relativity and Quantum Cosmologygravitational waves; black holesGW190521 BBHIntermediate mass black holesLIGO10. No inequalityQCQBSettore FIS/01astro-ph.HEHigh Energy Astrophysical Phenomena (astro-ph.HE)PhysicsPAIR-INSTABILITYSettore FIS/05Physicsstatistical analysis: BayesianSupernovaPhysical SciencesPhysique des particules élémentaires[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]Astrophysics - High Energy Astrophysical PhenomenaGravitational wavedata analysis methodBinary black holes Intermediate mass black holesgr-qcPhysics MultidisciplinaryFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)Physics and Astronomy(all)Gravitation and AstrophysicsGravitational wavespair-instabilitySettore FIS/05 - Astronomia e AstrofisicaBinary black holeBinary black holesNeutron starsgravitational wavessupernova0103 physical sciences010306 general physicsLuminosity distanceSTFCGW190521Science & Technology9. Industry and infrastructureGravitational wavegravitational radiationRCUKblack hole: massgravitational waves black holegravitational radiation detectorLIGORedshiftBlack holewave: modelVIRGOblack hole: binaryIntermediate-mass black holegravitational radiation: emissionBBH[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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