0000000000871307

AUTHOR

Alvin J. K. Chua

showing 4 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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First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data

2017

Spinning neutron stars asymmetric with respect to their rotation axis are potential sources of continuous gravitational waves for ground-based interferometric detectors. In the case of known pulsars a fully coherent search, based on matched filtering, which uses the position and rotational parameters obtained from electromagnetic observations, can be carried out. Matched filtering maximizes the signal-to-noise (SNR) ratio, but a large sensitivity loss is expected in case of even a very small mismatch between the assumed and the true signal parameters. For this reason, {\it narrow-band} analyses methods have been developed, allowing a fully coherent search for gravitational waves from known …

Gravitational-wave observatoryPhysics and Astronomy (miscellaneous)Astronomy01 natural sciencesrotationneutron starsGeneral Relativity and Quantum Cosmologygravitational waves; LIGO; stochastic gravitational-waveLIGOneutron star010303 astronomy & astrophysicsGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)QCpulsarQBPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Gravitational Waves neutron stars advanced detectors narrow-band searchDetectorAmplitude[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]Astrophysics - High Energy Astrophysical PhenomenaasymmetryCoherence (physics)young pulsarinterferometerneutron star: spinFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)proper motionadvanced detectorsGravitational wavesPulsar0103 physical sciencesddc:530Gravitational Waves010308 nuclear & particles physicsGravitational wavegravitational radiation530 PhysikLIGOgravitational radiation detectorComputational physicscoherencedetector: sensitivityNeutron starelectromagneticPhysics and AstronomyGravitational waves; Pulsarnarrow-band searchDewey Decimal Classification::500 | Naturwissenschaften::530 | Physik[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]discovery
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Astrophysics with the Laser Interferometer Space Antenna

2023

Full list of authors: Amaro-Seoane, Pau; Andrews, Jeff; Sedda, Manuel Arca; Askar, Abbas.; Baghi, Quentin; Balasov, Razvan; Bartos, Imre; Bavera, Simone S.; Bellovary, Jillian; Berry, Christopher P. L.; Berti, Emanuele; Bianchi, Stefano; Blecha, Laura; Blondin, Stephane; Bogdanovic, Tamara; Boissier, Samuel; Bonetti, Matteo; Bonoli, Silvia; Bortolas, Elisa; Breivik, Katelyn; Capelo, Pedro R.; Caramete, Laurentiu; Cattorini, Federico; Charisi, Maria; Chaty, Sylvain; Chen, Xian; Chruslinska, Martyna; Chua, Alvin J. K.; Church, Ross; Colpi, Monica; D'Orazio, Daniel; Danielski, Camilla; Davies, Melvyn B.; Dayal, Pratika; De Rosa, Alessandra; Derdzinski, Andrea; Destounis, Kyriakos; Dotti, Massi…

AstrofísicaACTIVE GALACTIC NUCLEICosmology and Nongalactic Astrophysics (astro-ph.CO)Physics and Astronomy (miscellaneous)Black holeAstronomyStellar remnantFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)TIDAL DISRUPTION EVENTSGeneral Relativity and Quantum CosmologyGravitational wavesMOCCA-SURVEY DATABASESettore FIS/05 - Astronomia e AstrofisicaStellar remnantsSoftware ScienceMulti-messengerGRAVITATIONAL-WAVE SOURCESInstrumentation and Methods for Astrophysics (astro-ph.IM)Extreme mass ratio in-spiralsSolar and Stellar Astrophysics (astro-ph.SR)High Energy Astrophysical Phenomena (astro-ph.HE)Black holes; Extreme mass ratio in-spirals; Gravitational waves; Multi-messenger; Stellar remnantsBlack holesData ScienceAstrophysics::Instrumentation and Methods for AstrophysicsExtreme mass ratio in-spiralAM-CVN STARSAstrophysics - Astrophysics of GalaxiesWHITE-DWARF BINARIESDOUBLE NEUTRON-STARSAstrophysics - Solar and Stellar Astrophysics[SDU]Sciences of the Universe [physics]Astrophysics of Galaxies (astro-ph.GA)AstronomiaMASSIVE BLACK-HOLEAstrophysics - High Energy Astrophysical PhenomenaAstrophysics - Instrumentation and Methods for AstrophysicsX-RAY BINARIESCOMMON-ENVELOPE EVOLUTIONGravitational waveAstrophysics - Cosmology and Nongalactic Astrophysics
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