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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
5852
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pubmed:dateCreated |
2007-11-9
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pubmed:abstractText |
Using data collected at the Pierre Auger Observatory during the past 3.7 years, we demonstrated a correlation between the arrival directions of cosmic rays with energy above 6 x 10(19) electron volts and the positions of active galactic nuclei (AGN) lying within approximately 75 megaparsecs. We rejected the hypothesis of an isotropic distribution of these cosmic rays with at least a 99% confidence level from a prescribed a priori test. The correlation we observed is compatible with the hypothesis that the highest-energy particles originate from nearby extragalactic sources whose flux has not been substantially reduced by interaction with the cosmic background radiation. AGN or objects having a similar spatial distribution are possible sources.
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pubmed:commentsCorrections |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
1095-9203
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pubmed:author |
pubmed-author:RoyMM,
pubmed-author:KempEE,
pubmed-author:GrassiVV,
pubmed-author:SatoRR,
pubmed-author:GillesRR,
pubmed-author:YamamotoTT,
pubmed-author:AlvarezCC,
pubmed-author:AllenJJ,
pubmed-author:HealyM DMD,
pubmed-author:RothMM,
pubmed-author:ThomasDD,
pubmed-author:FernándezAA,
pubmed-author:ShinM SMS,
pubmed-author:SarkarSS,
pubmed-author:SmithB EBE,
pubmed-author:TakahashiJJ,
pubmed-author:SánchezFF,
pubmed-author:MorelliMM,
pubmed-author:GutiérrezJJ,
pubmed-author:NavarroJ LJL,
pubmed-author:GoldM SMS,
pubmed-author:LeeJJ,
pubmed-author:RodriguezGG,
pubmed-author:OrtizMM,
pubmed-author:ChoyEE,
pubmed-author:ColomboEE,
pubmed-author:AllardDD,
pubmed-author:RobertsMM,
pubmed-author:GlassHH,
pubmed-author:NewtonDD,
pubmed-author:PaterWW,
pubmed-author:BeattyJJ,
pubmed-author:LópezRR,
pubmed-author:ContrerasFF,
pubmed-author:BlassJJ,
pubmed-author:SchmidtTT,
pubmed-author:MullerM AMA,
pubmed-author:HamiltonJ CJC,
pubmed-author:GonzálezMM,
pubmed-author:PepeI MIM,
pubmed-author:La RosaGG,
pubmed-author:GrilloAA,
pubmed-author:WatsonA AAA,
pubmed-author:HorvatMM,
pubmed-author:XuJJ,
pubmed-author:MartínezJJ,
pubmed-author:NitzDD,
pubmed-author:WalkerPP,
pubmed-author:AgliettaMM,
pubmed-author:MorenoEE,
pubmed-author:de SouzaVV,
pubmed-author:MorrisCC,
pubmed-author:SantanderMM,
pubmed-author:BergmannTT,
pubmed-author:CataldoMM,
pubmed-author:SchmidtFF,
pubmed-author:ConnollyBB,
pubmed-author:AbrahamJJ,
pubmed-author:MillerWW,
pubmed-author:PicherOO,
pubmed-author:UlrichRR,
pubmed-author:SuarezFF,
pubmed-author:YoungTT,
pubmed-author:BrownW CWC,
pubmed-author:SalazarHH,
pubmed-author:GuarinoFF,
pubmed-author:FerriCC,
pubmed-author:PechMM,
pubmed-author:EngelRR,
pubmed-author:BuchholzPP,
pubmed-author:GrunfeldCC,
pubmed-author:HansenPP,
pubmed-author:SutherlandM SMS,
pubmed-author:CarusoRR,
pubmed-author:KnappJJ,
pubmed-author:PaulTT,
pubmed-author:CordierAA,
pubmed-author:PerroneLL,
pubmed-author:UrbanMM,
pubmed-author:MatthewsJJ,
pubmed-author:MieliCC,
pubmed-author:RivièreCC,
pubmed-author:BuenoAA,
pubmed-author:UngerMM,
pubmed-author:RouletEE
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