Did NANOGrav See a Signal from Primordial Black Hole Formation?
Ville Vaskonen, Hardi Veermäe
Abstract
We show that the recent NANOGrav result can be interpreted as a stochastic gravitational wave signal associated to formation of primordial black holes from high-amplitude curvature perturbations. The indicated amplitude and power of the gravitational wave spectrum agrees well with formation of primordial seeds for supermassive black holes.
Topics & Concepts
PhysicsPrimordial black holeAmplitudeSupermassive black holeAstrophysicsGravitational waveGravitational wave backgroundCurvatureBinary black holeOpticsGalaxyMathematicsGeometryCosmology and Gravitation TheoriesPulsars and Gravitational Waves ResearchBlack Holes and Theoretical Physics