The Distribution of Ultrahigh-energy Cosmic Rays along the Supergalactic Plane Measured at the Pierre Auger Observatory

Thumbnail
Share this
Date
2025
Author
Abdul Halim A.
Abreu P.
Aglietta M.
Allekotte I.
Almeida Cheminant K.
Almela A.
Aloisio R.
Alvarez-Muñiz J.
Ammerman Yebra J.
Anastasi G.A.
Anchordoqui L.
Andrada B.
Andringa S.
Anukriti
Apollonio L.
Aramo C.
Araújo Ferreira P.R.
Arnone E.
Arteaga Velázquez J.C.
Assis P.
Avila G.
Avocone E.
Bakalova A.
Barbato F.
Bartz Mocellin A.
Bellido J.A.
Berat C.
Bertaina M.E.
Bhatta G.
Bianciotto M.
Biermann P.L.
Binet V.
Bismark K.
Bister T.
Biteau J.
Blazek J.
Bleve C.
Blümer J.
Bohácová M.
Boncioli D.
Bonifazi C.
Bonneau Arbeletche L.
Borodai N.
Brack J.
Brichetto Orchera P.G.
Briechle F.L.
Bueno A.
Buitink S.
Buscemi M.
Büsken M.
Bwembya A.
Caballero-Mora K.S.
Cabana-Freire S.
Caccianiga L.
Caruso R.
Castellina A.
Catalani F.
Cataldi G.
Cazon L.
Cerda M.
Cermenati A.
Chinellato J.A.
Chudoba J.
Chytka L.
Clay R.W.
Cobos Cerutti A.C.
Colalillo R.
Coleman A.
Coluccia M.R.
Conceição R.
Condorelli A.
Consolati G.
Conte M.
Convenga F.
Correia dos Santos D.
Costa P.J.
Covault C.E.
Cristinziani M.
Cruz Sanchez C.S.
Dasso S.
Daumiller K.
Dawson B.R.
de Almeida R.M.
de Jesús J.
de Jong S.J.
de Mello Neto J.R.T.
De Mitri I.
de Oliveira J.
de Oliveira Franco D.
de Palma F.
de Souza V.
de Souza de Errico B.P.
De Vito E.
Del Popolo A.
Deligny O.
Denner N.
Deval L.
di Matteo A.
Dobre M.
Dobrigkeit C.
D'Olivo J.C.
Domingues Mendes L.M.
Dorosti Q.
dos Anjos J.C.
dos Anjos R.C.
Ebr J.
Ellwanger F.
Emam M.
Engel R.
Epicoco I.
Erdmann M.
Etchegoyen A.
Evoli C.
Falcke H.
Farmer J.
Farrar G.
Fauth A.C.
Fazzini N.
Feldbusch F.
Fenu F.
Fernandes A.
Fick B.
Figueira J.M.
Filipčič A.
Fitoussi T.
Flaggs B.
Fodran T.
Fujii T.
Fuster A.
Galea C.
Galelli C.
García B.
Gaudu C.
Gemmeke H.
Gesualdi F.
Gherghel-Lascu A.
Ghia P.L.
Giaccari U.
Glombitza J.
Gobbi F.
Gollan F.
Golup G.
Gómez Berisso M.
Gómez Vitale P.F.
Gongora J.P.
González J.M.
González N.
Goos I.
Góra D.
Gorgi A.
Gottowik M.
Grubb T.D.
Guarino F.
Guedes G.P.
Guido E.
Gülzow L.
Hahn S.
Hamal P.
Hampel M.R.
Hansen P.
Harari D.
Harvey V.M.
Haungs A.
Hebbeker T.
Hojvat C.
Hörandel J.R.
Horvath P.
Hrabovský M.
Huege T.
Insolia A.
Isar P.G.
Janecek P.
Jilek V.
Johnsen J.A.
Jurysek J.
Kampert K.-H.
Keilhauer B.
Khakurdikar A.
Kizakke Covilakam V.V.
Klages H.O.
Kleifges M.
Knapp F.
Köhler J.
Kunka N.
Lago B.L.
Langner N.
Leigui de Oliveira M.A.
Lema-Capeans Y.
Letessier-Selvon A.
Lhenry-Yvon I.
Lopes L.
Lu L.
Luce Q.
Lundquist J.P.
Machado Payeras A.
Majercakova M.
Mandat D.
Manning B.C.
Mantsch P.
Marafico S.
Mariani F.M.
Mariazzi A.G.
Maris I.C.
Marsella G.
Martello D.
Martinelli S.
Martínez Bravo O.
Martins M.A.
Mathes H.-J.
Matthews J.
Matthiae G.
Mayotte E.
Mayotte S.
Mazur P.O.
Medina-Tanco G.
Meinert J.
Melo D.
Menshikov A.
Merx C.
Michal S.
Micheletti M.I.
Miramonti L.
Mollerach S.
Montanet F.
Morejon L.
Morello C.
Mulrey K.
Mussa R.
Namasaka W.M.
Negi S.
Nellen L.
Nguyen K.
Nicora G.
Niechciol M.
Nitz D.
Nosek D.
Novotny V.
Nozka L.
Nucita A.
Núñez L.A.
Oliveira C.
Palatka M.
Pallotta J.
Panja S.
Parente G.
Paulsen T.
Pawlowsky J.
Pech M.
Pekala J.
Pelayo R.
Pereira L.A.S.
Pereira Martins E.E.
Perez Armand J.
Pérez Bertolli C.
Perrone L.
Petrera S.
Petrucci C.
Pierog T.
Pimenta M.
Platino M.
Pont B.
Pothast M.
Pourmohammad Shahvar M.
Privitera P.
Prouza M.
Puyleart A.
Querchfeld S.
Rautenberg J.
Ravignani D.
Reginatto Akim J.V.
Reininghaus M.
Ridky J.
Riehn F.
Risse M.
Rizi V.
Rodrigues de Carvalho W.
Rodriguez E.
Rodriguez Rojo J.
Roncoroni M.J.
Rossoni S.
Roth M.
Roulet E.
Rovero A.C.
Ruehl P.
Saftoiu A.
Saharan M.
Salamida F.
Salazar H.
Salina G.
Sanabria Gomez J.D.
Sánchez F.
Santos E.M.
Santos E.
Sarazin F.
Sarmento R.
Sato R.
Savina P.
Schäfer C.M.
Scherini V.
Schieler H.
Schimassek M.
Schimp M.
Schmidt D.
Scholten O.
Schoorlemmer H.
Schovánek P.
Schröder F.G.
Schulte J.
Schulz T.
Sciutto S.J.
Scornavacche M.
Segreto A.
Sehgal S.
Shivashankara S.U.
Sigl G.
Silli G.
Sima O.
Simkova K.
Simon F.
Smau R.
Šmída R.
Sommers P.
Soriano J.F.
Squartini R.
Stadelmaier M.
Stanič S.
Stasielak J.
Stassi P.
Strähnz S.
Straub M.
Suomijärvi T.
Supanitsky A.D.
Svozilikova Z.
Szadkowski Z.
Tairli F.
Tapia A.
Taricco C.
Timmermans C.
Tkachenko O.
Tobiska P.
Todero Peixoto C.J.
Tomé B.
Torrès Z.
Travaini A.
Travnicek P.
Trimarelli C.
Tueros M.
Unger M.
Vaclavek L.
Vacula M.
Valdés Galicia J.F.
Valore L.
Varela E.
Vásquez-Ramírez A.
Veberič D.
Ventura C.
Vergara Quispe I.D.
Verzi V.
Vicha J.
Vink J.
Vorobiov S.
Watanabe C.
Watson A.A.
Weindl A.
Wiencke L.
Wilczynski H.
Wittkowski D.
Wundheiler B.
Yue B.
Yushkov A.
Zapparrata O.
Zas E.
Zavrtanik D.
Zavrtanik M.
Gestores bibliográficos
Metadata
Show full item record
Abstract
Ultrahigh-energy cosmic rays are known to be mainly of extragalactic origin, and their propagation is limited by energy losses, so their arrival directions are expected to correlate with the large-scale structure of the local Universe. In this work, we investigate the possible presence of intermediate-scale excesses in the flux of the most energetic cosmic rays from the direction of the supergalactic plane region using events with energies above 20 EeV recorded with the surface detector array of the Pierre Auger Observatory up to 2022 December 31, with a total exposure of 135,000 km2 sr yr. The strongest indication for an excess that we find, with a posttrial significance of 3.1σ, is in the Centaurus region, as in our previous reports, and it extends down to lower energies than previously studied. We do not find any strong hints of excesses from any other region of the supergalactic plane at the same angular scale. In particular, our results do not confirm the reports by the Telescope Array Collaboration of excesses from two regions in the Northern Hemisphere at the edge of the field of view of the Pierre Auger Observatory. With a comparable integrated exposure over these regions, our results there are in good agreement with the expectations from an isotropic distribution. © 2025. The Author(s). Published by the American Astronomical Society.
URI
http://hdl.handle.net/11407/9105
Collections