Searches for Neutrinos in the Direction of Radio-bright Blazars with the ANTARES Telescope

Albert A, Alves S, André M, Ardid M, Ardid S, Aubert JJ, Aublin J, Baret B, Basa S, Becherini Y, Belhorma B, Bendahman M, Benfenati F, Bertin V, Biagi S, Bissinger M, Boumaaza J, Bouta M, Bouwhuis MC, Brânzaş H, Bruijn R, Brunner J, Busto J, Caiffi B, Calvo D, Campion S, Capone A, Caramete L, Carenini F, Carr J, Carretero V, Celli S, Cerisy L, Chabab M, El Moursli RC, Chiarusi T, Circella M, Coelho JA, Coleiro A, Coniglione R, Coyle P, Creusot A, Cruz AS, Díaz AF, De Martino B, Distefano C, Di Palma I, Domi A, Donzaud C, Dornic D, Drouhin D, Eberl T, van Eeden T, van Eijk D, El Hedri S, El Khayati N, Enzenhöfer A, Fermani P, Ferrara G, Filippini F, Fusco L, Gagliardini S, García J, Oliver CG, Gay P, Geißelbrecht N, Glotin H, Gozzini R, Gracia Ruiz R, Graf K, Guidi C, Haegel L, Hallmann S, van Haren H, Heijboer AJ, Hello Y, Hernández-Rey JJ, Hößl J, Hofestädt J, Huang F, Illuminati G, James CW, Jisse-Jung B, de Jong M, de Jong P, Kadler M, Kalekin O, Katz U, Kouchner A, Kovalev YA, Kovalev YY, Kreykenbohm I, Kulikovskiy V, Lahmann R, Lamoureux M, Lazo A, Lefèvre D, Leonora E, Levi G, Le Stum S, Lopez-Coto D, Loucatos S, Maderer L, Manczak J, Marcelin M, Margiotta A, Marinelli A, Martínez-Mora JA, Migliozzi P, Moussa A, Muller R, Navas S, Nezri E, Fearraigh B, Oukacha E, Păun A, Păvălaş GE, Peña-Martínez S, Perrin-Terrin M, Pestel V, Piattelli P, Plavin A, Poirè C, Popa V, Pradier T, Pushkarev A, Randazzo N, Real D, Reck S, Riccobene G, Romanov A, Sánchez-Losa A, Saina A, Greus FS, Samtleben DF, Sanguineti M, Sapienza P, Schnabel J, Schumann J, Schüssler F, Seneca J, Spurio M, Stolarczyk T, Taiuti M, Tayalati Y, Tingay SJ, Troitsky S, Vallage B, Vannoye G, Van Elewyck V, Viola S, Vivolo D, Wilms J, Zavatarelli S, Zegarelli A, Zornoza JD, Zúñiga J, Hovatta T, Kiehlmann S, Liodakis I, Pavlidou V, Readhead AC (2024)

Publication Language: English

Publication Type: Journal article

Publication year: 2024

Journal

Book Volume: 964

Article Number: 3

Journal Issue: 1

DOI: 10.3847/1538-4357/ad1f5b

Abstract

Active galaxies, especially blazars, are among the most promising extragalactic candidates for high-energy neutrino sources. To date, ANTARES searches included these objects and used GeV–TeV γ-ray flux to select blazars. Here, a statistically complete blazar sample selected by their bright radio emission is used as the target for searches of origins of neutrinos collected by the ANTARES neutrino telescope over 13 yr of operation. The hypothesis of a neutrino–blazar directional correlation is tested by pair counting and a complementary likelihood-based approach. The resulting posttrial p-value is 3.0% (2.2σ in the two-sided convention). Additionally, a time-dependent analysis is performed to search for temporal clustering of neutrino candidates as a means of detecting neutrino flares in blazars. None of the investigated sources alone reaches a significant flare detection level. However, the presence of 18 sources with a pretrial significance above 3σ indicates a p = 1.4% (2.5σ in the two-sided convention) detection of a time-variable neutrino flux. An a posteriori investigation reveals an intriguing temporal coincidence of neutrino, radio, and γ-ray flares of the J0242+1101 blazar at a p = 0.5% (2.9σ in the two-sided convention) level. Altogether, the results presented here suggest a possible connection of neutrino candidates detected by the ANTARES telescope with radio-bright blazars.

Authors with CRIS profile

Involved external institutions

Aix-Marseille University / Aix-Marseille Université France (FR) University of València / Universitat de València Spain (ES) National Institute for Nuclear Physics / Istituto Nazionale di Fisica Nucleare (INFN) Italy (IT) The National Center for Nuclear Energy, Sciences and Techniques (CNESTEN) Morocco (MA) Université Paris Cité France (FR) Université de Strasbourg (UDS) France (FR) Polytechnic University of Valencia / Universidad Politécnica de Valencia Spain (ES) Foundation for Research and Technology-Hellas (FORTH) / Ίδρυμα Τεχνολογίας και Έρευνας Greece (GR) Turku University Hospital / Turun yliopistollinen keskussairaala (TYKS) Finland (FI) Mohammed First University / Université Mohammed Premier / جامعة محمد الأول Morocco (MA) FOM Foundation Netherlands (NL) National Institute for Laser, Plasma & Radiation Physics (INFLPR) Romania (RO) Institute of Research into the Fundamental Laws of the Universe / Institut de recherche sur les lois fondamentales de l'univers (IRFU) France (FR) Universidad de Granada Spain (ES) UMR Géoazur - Campus Azur du CNRS France (FR) International Centre for Radio Astronomy Research Australia (AU) Julius-Maximilians-Universität Würzburg Germany (DE) Mediterranean Institute of Oceanography (MIO) / Institut méditerranéen d'océanologie France (FR) Cadi Ayyad University / جامعة القاضي عياض‎ Morocco (MA) Royal Netherlands Institute for Sea Research (NIOZ) Netherlands (NL) Mohammed V University (UMVA) / جامعة محمد الخامس‎ Morocco (MA) Università degli Studi di Salerno Italy (IT) University of Toulon / Université de Toulon (UTLN) France (FR) Lebedev Physical Institute of the Russian Academy of Sciences (LPI RAS) / Физи́ческий институ́т имени П.Н.Ле́бедева Российской академии наук (ФИАН) Russian Federation (RU) National Research Nuclear University (Moscow Engineering Physics Institute, MEPhI) / Национальный исследовательский ядерный университет "МИФИ" Russian Federation (RU) California Institute of Technology (Caltech) United States (USA) (US) Polytechnic University of Catalonia / Universitat Politècnica de Catalunya · BarcelonaTech (UPC) / Universidad Politécnica de Cataluña Spain (ES)

How to cite

APA:

Albert, A., Alves, S., André, M., Ardid, M., Ardid, S., Aubert, J.J.,... Readhead, A.C. (2024). Searches for Neutrinos in the Direction of Radio-bright Blazars with the ANTARES Telescope. Astrophysical Journal, 964(1). https://doi.org/10.3847/1538-4357/ad1f5b

MLA:

Albert, A., et al. "Searches for Neutrinos in the Direction of Radio-bright Blazars with the ANTARES Telescope." Astrophysical Journal 964.1 (2024).

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