The Astrophysical Journal · 1996 · 30 citations · 0 references
Natural SciencesAstronomyPhysicsAstrophysicsCosmologyGamma-ray AstronomyCosmological ParametersExtragalactic Gamma-ray AstronomyGamma-ray BurstsGamma-ray SourcesObservational CosmologyFriedmann - Lemaître - Robertson - Walker CosmologyFriedmann-lemaître-robertson-walker ModelsGamma-ray Burst EnergeticsGamma-ray Burst Luminosity FunctionsGamma-ray Burst ObservationsLuminosity Function EvolutionParameter Space AnalysisParameter Space Exploration
We discuss detailed fits of the BATSE and PVO gamma-ray burst peak- flux distributions with Friedmann models taking into account possible density evolution and standard candle or power-law luminosity functions. A χ^2^ analysis is used to estimate the goodness of the fits, and we derive the significance level of limits on the density evolution and luminosity function parameters. Cosmological models provide a good fit over a range of parameter space that is physically reasonable.