Reconstruction of primordial power spectrum of curvature perturbation from the merger rate of primordial black hole binaries
Rampei Kimura, Teruaki Suyama, Masahide Yamaguchi, Ying-li Zhang
Abstract
Abstract The properties of primordial curvature perturbations on small scales are still unknown while those on large scales have been well probed by the observations of the cosmic microwave background anisotropies and the large scale structure. In this paper, we propose the reconstruction method of primordial curvature perturbations on small scales through the merger rate of binary primordial black holes, which could form from large primordial curvature perturbation on small scales.
Topics & Concepts
PhysicsPrimordial black holeCosmic microwave backgroundCurvatureAstrophysicsSpectral densityPerturbation (astronomy)Primordial fluctuationsAnisotropyBlack hole (networking)COSMIC cancer databaseGravitational waveUniverseCosmological perturbation theoryCosmic background radiationBinary numberBinary black holeCosmologyExtra dimensionsBig Bang (financial markets)Perturbation theory (quantum mechanics)AstronomyNon-GaussianityPlanckClassical mechanicsCosmology and Gravitation TheoriesBlack Holes and Theoretical PhysicsGalaxies: Formation, Evolution, Phenomena