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. 2007 Nov 9;318(5852):938-43.
doi: 10.1126/science.1151124.

Correlation of the highest-energy cosmic rays with nearby extragalactic objects

Pierre Auger CollaborationJ AbrahamP AbreuM AgliettaC AguirreD AllardI AllekotteJ AllenP AllisonC AlvarezJ Alvarez-MuñizM AmbrosioL AnchordoquiS AndringaA AnzaloneC AramoS ArgiròK ArisakaE ArmengaudF ArneodoF ArquerosT AschH AsoreyP AssisB S AtulugamaJ AublinM AveG AvilaT BäckerD BadagnaniA F BarbosaD BarnhillS L C BarrosoP BauleoJ BeattyT BeauB R BeckerK H BeckerJ A BellidoS BenzviC BeratT BergmannP BernardiniX BertouP L BiermannP BilloirO Blanch-BigasF BlancoP BlasiC BleveH BlümerM BohácováC BonifaziR BoninoM BoratavJ BrackP BrogueiraW C BrownP BuchholzA BuenoN G BuscaK S Caballero-MoraB CaiD V CaminR CarusoW CarvalhoA CastellinaO CatalanoG CataldiL Cazón-BoadoR CesterJ ChauvinA ChiavassaJ A ChinellatoA ChouJ ChyeP D J ClarkR W ClayE ColomboR ConceiçãoB ConnollyF ContrerasJ CoppensA CordierU CottiS CoutuC E CovaultA CreusotJ CroninS Dagoret-CampagneK DaumillerB R DawsonR M de AlmeidaC De DonatoS J de JongG De La VegaW J M de Mello JuniorJ R T de Mello NetoI De MitriV de SouzaL Del PeralO DelignyA Della SelvaC Delle FratteH DembinskiC Di GiulioJ C DiazC DobrigkeitJ C D'OlivoD DornicA DorofeevJ C Dos AnjosM T DovaD D'UrsoM A DuvernoisR EngelL EpeleM ErdmannC O EscobarA EtchegoyenP Facal San LuisH FalckeG FarrarA C FauthN FazziniA FernándezF FerrerS FerryB FickA FilevichA FilipcicI FleckR FonteC E FracchiollaW FulgioneB GarcíaD García GámezD Garcia-PintoX GarridoH GeenenG GelminiH GemmekeP L GhiaM GillerH GlassM S GoldG GolupF Gomez AlbarracinM Gómez BerissoR Gómez HerreroP GonçalvesM Gonçalves do AmaralD GonzalezJ G GonzalezM GonzálezD GóraA GorgiP GouffonV GrassiA GrilloC GrunfeldY GuardincerriF GuarinoG P GuedesJ GutiérrezJ D HagueJ C HamiltonP HansenD HarariS HarmsmaJ L HartonA HaungsT HauschildtM D HealyT HebbekerD HeckC HojvatV C HolmesP HomolaJ HörandelA HornefferM HorvatM HrabovskyT HuegeM IarloriA InsoliaF IonitaA ItalianoM KaducakK H KampertB KeilhauerE KempR M KieckhaferH O KlagesM KleifgesJ KleinfellerR KnapikJ KnappD-H KoangA KopmannA KriegerO KrömerD KümpelN KunkaA KusenkoG La RosaC LachaudB L LagoD LebrunP LebrunJ LeeM A Leigui de OliveiraA Letessier-SelvonM LeutholdI Lhenry-YvonR LópezA Lopez AgüeraJ Lozano BahiloM C MaccaroneC MacolinoS MalderaM MalekG MancarellaM E ManceñidoD MandatP MantschA G MariazziI C MarisD MartelloJ MartínezO Martínez BravoH J MathesJ MatthewsJ A J MatthewsG MatthiaeD MaurizioP O MazurT McCauleyM McEwenR R McNeilM C MedinaG Medina-TancoA MeliD MeloE MenichettiA MenschikovChr MeurerR MeyhandanM I MichelettiG MieleW MillerS MollerachM MonasorD Monnier RagaigneF MontanetB MoralesC MorelloE MorenoJ C MorenoC MorrisM MostafáM A MullerR MussaG NavarraJ L NavarroS NavasL NellenC Newman-HolmesD NewtonT Nguyen ThiN NierstenhöferD NitzD NosekL NozkaJ OehlschlägerT OhnukiA OlintoV M Olmos-GilbajaM OrtizS OstapchenkoL OteroD Pakk Selmi-DeiM PalatkaJ PallottaG ParenteE ParizotS ParlatiS PastorM PatelT PaulV PavlidouK PayetM PechJ PekalaR PelayoI M PepeL PerroneS PetreraP PetrincaY PetrovDieppham NgocDongpham NgocT N Pham ThiA PichelR PiegaiaT PierogM PimentaT PintoV PirronelloO PisantiM PlatinoJ PochonT A PorterP PriviteraM ProuzaE J QuelJ RautenbergS ReucroftB RevenuF A S RezendeJ RídkyS RiggiM RisseC RivièreV RiziM RobertsC RobledoG RodriguezD Rodríguez FríasJ Rodriguez MartinoJ Rodriguez RojoI Rodriguez-CaboG RosJ RosadoM RothB Rouillé-d'OrfeuilE RouletA C RoveroF SalamidaH SalazarG SalinaF SánchezM SantanderC E SantoE M SantosF SarazinS SarkarR SatoV ScheriniH SchielerF SchmidtT SchmidtO ScholtenP SchovánekF SchüsslerS J SciuttoM ScuderiA SegretoD SemikozM SettimoR C ShellardI SidelnikB B SiffertG SiglN Smetniansky De GrandeA SmialkowskiR SmídaA G K SmithB E SmithG R SnowP SokolskyP SommersJ SorokinH SpinkaR SquartiniE StrazzeriA StutzF SuarezT SuomijärviA D SupanitskyM S SutherlandJ SwainZ SzadkowskiJ TakahashiA TamashiroA TamburroO TascauR TcaciucD ThomasR TiconaJ TiffenbergC TimmermansW TkaczykC J Todero PeixotoB ToméA TonachiniD TorresiP TravnicekA TripathiG TristramD TscherniakhovskiM TuerosV TunnicliffeR UlrichM UngerM UrbanJ F Valdés GaliciaI ValiñoL ValoreA M van den BergV van ElewyckR A VázquezD VebericA VeigaA VelardeT VentersV VerziM VidelaL VillaseñorS VorobiovL VoyvodicH WahlbergO WainbergT WaldenmaierP WalkerD WarnerA A WatsonS WesterhoffG WieczorekL WienckeB WilczynskaH WilczynskiC WilemanM G WinnickH WuB WundheilerJ XuT YamamotoP YounkE ZasD ZavrtanikM ZavrtanikA ZechA ZepedaM ZiolkowskiB Kégl
Free article

Correlation of the highest-energy cosmic rays with nearby extragalactic objects

Pierre Auger Collaboration et al. Science. .
Free article

Erratum in

  • Science. 2008 Mar 7;319(5868):1336. Kégl, B [added]

Abstract

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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