0000000001223106

AUTHOR

J. M. Newport

showing 3 related works from this author

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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Tests of General Relativity with GW170817

2019

The recent discovery by Advanced LIGO and Advanced Virgo of a gravitational wave signal from a binary neutron star inspiral has enabled tests of general relativity (GR) with this new type of source. This source, for the first time, permits tests of strong-field dynamics of compact binaries in presence of matter. In this paper, we place constraints on the dipole radiation and possible deviations from GR in the post-Newtonian coefficients that govern the inspiral regime. Bounds on modified dispersion of gravitational waves are obtained; in combination with information from the observed electromagnetic counterpart we can also constrain effects due to large extra dimensions. Finally, the polari…

Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaftenneutron star: binaryAstronomyTestingGravitational WaveGeneral Physics and AstronomyAstrophysics01 natural sciencesGeneral Relativity and Quantum Cosmologystrong fieldddc:550general relativityLIGOQCSettore FIS/01PhysicsPhysicsGravitational effectsarticlePolarization (waves)Gravitational-wave signalsExtra dimensionsgravitational wavesPhysical SciencesExtra dimensions[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]Large extra dimensiondispersionBinary neutron starsgravitational radiation: polarizationGeneral RelativityGeneral relativitygr-qcPhysics MultidisciplinaryGRAVITATIONAL-WAVE OBSERVATIONSFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)gravitational wavesblack holesGravity wavesMASSgravitational radiation: direct detectionGravitation and Astrophysicselectromagnetic field: productionRelativityGeneral Relativity and Quantum CosmologyDipole radiationsGRAVITYTests of general relativitygravitation: weak field0103 physical sciencesddc:530High Energy Physicscapture010306 general physicsGravitational Wave; General RelativitySTFCradiation: dipolepolarizationScience & TechnologyStrong fieldGravitational wavegravitational radiationRCUKbinary: compactgravitational radiation detectorLIGONeutron starVIRGODewey Decimal Classification::500 | Naturwissenschaften::530 | PhysikNewtonianshigher-dimensional
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A Fermi Gamma-Ray Burst Monitor Search for Electromagnetic Signals Coincident with Gravitational-wave Candidates in Advanced LIGO's First Observing R…

2019

We present a search for prompt gamma-ray counterparts to compact binary coalescence gravitational wave (GW) candidates from Advanced LIGO's first observing run (O1). As demonstrated by the multimessenger observations of GW170817/GRB 170817A, electromagnetic and GW observations provide complementary information about the astrophysical source and, in the case of weaker candidates, may strengthen the case for an astrophysical origin. Here we investigate low-significance GW candidates from the O1 compact-binary coalescence searches using the Fermi Gamma-ray Burst Monitor (GBM), leveraging its all-sky and broad energy coverage. Candidates are ranked and compared to background to measure signific…

AstrofísicaGravitacióAstronomyAstrophysics::High Energy Astrophysical Phenomenagamma-ray burst: generalFOS: Physical sciencesAstrophysicsAstronomy & Astrophysicsgeneral [gamma-ray burst]01 natural sciencesCoincidenceCoincident0103 physical sciences010306 general physics010303 astronomy & astrophysicsgravitational waveSTFCQCQBHigh Energy Astrophysical Phenomena (astro-ph.HE)Settore FIS/01Physicsastro-ph.HEScience & TechnologySolar flareGravitational wavegamma-ray burst: general; gravitational waves; Astronomy and Astrophysics; Space and Planetary ScienceRCUKAstronomy and AstrophysicsAstronomy and AstrophysicLIGOPhysics and Astronomygravitational wavesSpace and Planetary SciencePhysical Sciencesgamma-ray burst: general; gravitational wavesgeneral; gravitational waves; Astronomy and Astrophysics; Space and Planetary Science [gamma-ray burst]False alarmAstrophysics - High Energy Astrophysical PhenomenaGamma-ray burst[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]Fermi Gamma-ray Space Telescope
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