weak gravitational lensing - m. bartelmann, p. schneider

《weak gravitational lensing - m. bartelmann, p. schneider》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、WeakGravitationalLensingMatthiasBartelmannandPeterSchneiderMax-Planck-InstitutfurAstrophysik,P.O.Box1523,D–85740Garching,Germany¨AbstractWereviewtheoryandapplicationsofweakgravitationallensing.AftersummarisingFriedmann-Lemaˆıtrecosmologicalmodels,wepresentt

2、heformalismofgravitationallens-ingandlightpropagationinarbitraryspace-times.Wediscusshowweak-lensingeffectscanbemeasured.Theformalismisthenappliedtoreconstructionsofgalaxy-clustermassdistributions,gravitationallensingbylarge-scalematterdistributions,QSO-gal

3、axycorre-lationsinducedbyweaklensing,lensingofgalaxiesbygalaxies,andweaklensingofthecosmicmicrowavebackground.arXiv:astro-ph/9912508v123Dec1999PreprintsubmittedtoElsevierPreprint12July2006Contents1Introduction51.1GravitationalLightDeflection51.2WeakGravitati

4、onalLensing61.3ApplicationsofGravitationalLensing81.4StructureofthisReview102CosmologicalBackground122.1Friedmann-LemaˆıtreCosmologicalModels122.2DensityPerturbations242.3RelevantPropertiesofLensesandSources332.4CorrelationFunctions,PowerSpectra,andtheirPro

5、jections413GravitationalLightDeflection453.1GravitationalLensTheory453.2LightPropagationinArbitrarySpacetimes524PrinciplesofWeakGravitationalLensing584.1Introduction584.2GalaxyShapesandSizes,andtheirTransformation594.3LocalDeterminationoftheDistortion614.4Ma

6、gnificationEffects704.5MinimumLensStrengthforitsWeakLensingDetection744.6PracticalConsiderationforMeasuringImageShapes765WeakLensingbyGalaxyClusters865.1Introduction865.2ClusterMassReconstructionfromImageDistortions8725.3ApertureMassandMultipoleMeasures965.4

7、ApplicationtoObservedClusters1015.5Outlook1066WeakCosmologicalLensing1176.1LightPropagation;ChoiceofCoordinates1186.2LightDeflection1196.3EffectiveConvergence1226.4Effective-ConvergencePowerSpectrum1246.5MagnificationandShear1286.6Second-OrderStatisticalMeasu

8、res1296.7Higher-OrderStatisticalMeasures1446.8CosmicShearandBiasing1486.9NumericalApproachtoCosmicShear,CosmologicalParameterEstimates,andObservations1517QSOMagnificationBiasandLarge-ScaleStructure1567.