Amplitude and phase fluctuations of gravitational waves magnified by strong gravitational lensing
Masamune Oguri, Ryuichi Takahashi
Abstract
The authors derive analytic expressions for how small-scale density perturbations affect amplitude and phase fluctuations of gravitational waves that are magnified due to strong gravitational lensing. They show that small-scale structures can become observable for highly magnified gravitational waves and compute the effects of microlensing due to stars, primordial black holes, and fuzzy dark matter.
Topics & Concepts
PhysicsGravitational waveGravitational lensGravitational microlensingAmplitudeObservableGravitational redshiftWeak gravitational lensingStrong gravitational lensingAstrophysicsGravitational lensing formalismPhase (matter)Primordial black holeDark matterQuantum electrodynamicsClassical mechanicsStarsOpticsQuantum mechanicsBinary black holeGalaxyRedshiftPulsars and Gravitational Waves ResearchCosmology and Gravitation TheoriesGalaxies: Formation, Evolution, Phenomena