IceCubedetectedTeV-PeVneutrinosNeutrinoeventsignaturesIceCube:搜寻Blazars方向的中微子Coincidenceofahigh-fluenceblazaroutburstwithaPeVneutrinoIC170922A—muontrackneutrino多波段观测偶然性成协概率Neutrinospriorto170911AQuestionsSEDofTXS0506+056LeptonicmodelLepto-HadronicmodelPhotomeson(pγ)interactionPhotomeson(pγ)interactionppinteractionmodels=1.6:1(anti-)muonevent/80dayss=2.0:1(anti-)muonevent/3.2yrsIsotropic-equivalentneutrinoluminosity:1.2×1047erg/s(32TeV-3.6PeV)Isotropic-equivalentgamma-rayluminosity:0.28×1047erg/s(0.1-100GeV),Low-stateOriginoftheneutrinos?Where,How…Blazarsproduceadominantpartofdiffuseneutrinos?StackingConstraintsonBlazarsMultiplet&Auto-CorrelationConstraintsSummary