Constraints on anisotropic primordial non-Gaussianity from intrinsic alignments of SDSS-III BOSS galaxies
Toshiki Kurita, Masahiro Takada
Abstract
The authors employ a novel power-spectrum estimator to measure galaxy intrinsic alignments from Sloan Digital Sky Survey data. They showcase the method's usefulness, constraining the level of non-gaussianities in primordial cosmological structure perturbations.
Topics & Concepts
PhysicsNon-GaussianityGalaxyAstrophysicsMeasure (data warehouse)Spectral densityAnisotropySkyEstimatorStatistical physicsCosmic microwave backgroundComputer scienceQuantum mechanicsStatisticsData miningTelecommunicationsMathematicsGalaxies: Formation, Evolution, PhenomenaCosmology and Gravitation TheoriesAstronomy and Astrophysical Research