Related papers: Probing the connection between IceCube neutrinos a…

Possible correlation between unabsorbed hard X-rays and neutrinos in radio-loud and radio-quiet AGN

The first high-energy neutrino source identified by IceCube was a blazar -- an active galactic nucleus driving a relativistic jet towards Earth. Jets driven by accreting black holes are commonly assumed to be needed for high-energy neutrino…

High Energy Astrophysical Phenomena · Physics 2024-10-30 Emma Kun , Imre Bartos , Julia Becker Tjus , Peter L. Biermann , Anna Franckowiak , Francis Halzen , Santiago del Palacio , Jooyun Woo

Upstream neutrino production and delayed jet emission in the blazar GB6 J1542+6129

We investigate the physical origin and location of high-energy neutrino emission in active galactic nuclei (AGN) using the blazar GB6 J1542+6129 as a case study, testing whether neutrinos are produced in compact regions near the black hole…

High Energy Astrophysical Phenomena · Physics 2026-05-04 Emma Kun , Imre Bartos , Breshna Hadi , Anna Göblyös , Julia Becker Tjus , Peter L. Biermann , Anna Franckowiak , Francis Halzen , Santiago del Palacio , Claudio Ricci

Search for Neutrinos from the Galactic 4FGL Sources with the Pion-bump Signature with IceCube

The IceCube Neutrino Observatory, located at the South Pole, covers a cubic kilometer of Antarctic ice, and is designed to detect astrophysical neutrinos in the TeV-PeV energy range. While IceCube has recently identified a diffuse flux of…

High Energy Astrophysical Phenomena · Physics 2025-08-01 Alejandra Granados , Rishi Babu , Mehr Un Nisa

Pinpointing Extragalactic Neutrino Sources in Light of Recent IceCube Observations

The IceCube Collaboration has recently reported the observation of a flux of high-energy astrophysical neutrinos. The angular distribution of events is consistent with an isotropic arrival direction of neutrinos which is expected for an…

High Energy Astrophysical Phenomena · Physics 2015-06-19 Markus Ahlers , Francis Halzen

Multi-Messenger Connections among High-Energy Cosmic Particles

The origin of high-energy cosmic neutrinos is one of the biggest mysteries in astroparticle physics. The fact that diffuse intensities of high-energy neutrinos, ultrahigh-energy cosmic rays, and GeV-TeV gamma rays are all comparable…

High Energy Astrophysical Phenomena · Physics 2019-12-17 Kohta Murase

Search for High-Energy Neutrino Emission from Galactic X-ray Binaries with IceCube

We present the first comprehensive search for high-energy neutrino emission from high- and low-mass X-ray binaries conducted by IceCube. Galactic X-ray binaries are long-standing candidates for the source of Galactic hadronic cosmic rays…

High Energy Astrophysical Phenomena · Physics 2022-10-25 R. Abbasi , M. Ackermann , J. Adams , J. A. Aguilar , M. Ahlers , M. Ahrens , J. M. Alameddine , A. A. Alves , N. M. Amin , K. Andeen , T. Anderson , G. Anton , C. Argüelles , Y. Ashida , S. Axani , X. Bai , A. Balagopal V. , S. W. Barwick , B. Bastian , V. Basu , S. Baur , R. Bay , J. J. Beatty , K. -H. Becker , J. Becker Tjus , J. Beise , C. Bellenghi , S. Benda , S. BenZvi , D. Berley , E. Bernardini , D. Z. Besson , G. Binder , D. Bindig , E. Blaufuss , S. Blot , M. Boddenberg , F. Bontempo , J. Borowka , S. Böser , O. Botner , J. Böttcher , E. Bourbeau , F. Bradascio , J. Braun , B. Brinson , S. Bron , J. Brostean-Kaiser , S. Browne , A. Burgman , R. T. Burley , R. S. Busse , M. A. Campana , E. G. Carnie-Bronca , C. Chen , Z. Chen , D. Chirkin , K. Choi , B. A. Clark , K. Clark , L. Classen , A. Coleman , G. H. Collin , J. M. Conrad , P. Coppin , P. Correa , D. F. Cowen , R. Cross , C. Dappen , P. Dave , C. De Clercq , J. J. DeLaunay , D. Delgado López , H. Dembinski , K. Deoskar , A. Desai , P. Desiati , K. D. de Vries , G. de Wasseige , M. de With , T. DeYoung , A. Diaz , J. C. Díaz-Vélez , M. Dittmer , H. Dujmovic , M. Dunkman , M. A. DuVernois , T. Ehrhardt , P. Eller , R. Engel , H. Erpenbeck , J. Evans , P. A. Evenson , K. L. Fan , A. R. Fazely , A. Fedynitch , N. Feigl , S. Fiedlschuster , A. T. Fienberg , C. Finley , L. Fischer , D. Fox , A. Franckowiak , E. Friedman , A. Fritz , P. Fürst , T. K. Gaisser , J. Gallagher , E. Ganster , A. Garcia , S. Garrappa , L. Gerhardt , A. Ghadimi , C. Glaser , T. Glauch , T. Glüsenkamp , J. G. Gonzalez , S. Goswami , D. Grant , T. Grégoire , S. Griswold , C. Günther , P. Gutjahr , C. Haack , A. Hallgren , R. Halliday , L. Halve , F. Halzen , M. Ha Minh , K. Hanson , J. Hardin , A. A. Harnisch , A. Haungs , D. Hebecker , K. Helbing , F. Henningsen , E. C. Hettinger , S. Hickford , J. Hignight , C. Hill , G. C. Hill , K. D. Hoffman , R. Hoffmann , K. Hoshina , F. Huang , M. Huber , T. Huber , K. Hultqvist , M. Hünnefeld , R. Hussain , K. Hymon , S. In , N. Iovine , A. Ishihara , M. Jansson , G. S. Japaridze , M. Jeong , M. Jin , B. J. P. Jones , D. Kang , W. Kang , X. Kang , A. Kappes , D. Kappesser , L. Kardum , T. Karg , M. Karl , A. Karle , U. Katz , M. Kauer , M. Kellermann , J. L. Kelley , A. Kheirandish , K. Kin , T. Kintscher , J. Kiryluk , S. R. Klein , A. Kochocki , R. Koirala , H. Kolanoski , T. Kontrimas , L. Köpke , C. Kopper , S. Kopper , D. J. Koskinen , P. Koundal , M. Kovacevich , M. Kowalski , T. Kozynets , E. Krupczak , E. Kun , N. Kurahashi , N. Lad , C. Lagunas Gualda , J. L. Lanfranchi , M. J. Larson , F. Lauber , J. P. Lazar , J. W. Lee , K. Leonard , A. Leszczyńska , Y. Li , M. Lincetto , Q. R. Liu , M. Liubarska , E. Lohfink , C. J. Lozano Mariscal , L. Lu , F. Lucarelli , A. Ludwig , W. Luszczak , Y. Lyu , W. Y. Ma , J. Madsen , K. B. M. Mahn , Y. Makino , S. Mancina , I. C. Mariş , I. Martinez-Soler , R. Maruyama , S. McCarthy , T. McElroy , F. McNally , J. V. Mead , K. Meagher , S. Mechbal , A. Medina , M. Meier , S. Meighen-Berger , J. Micallef , D. Mockler , T. Montaruli , R. W. Moore , R. Morse , M. Moulai , R. Naab , R. Nagai , U. Naumann , J. Necker , L. V. Nguyen , H. Niederhausen , M. U. Nisa , S. C. Nowicki , A. Obertacke Pollmann , M. Oehler , B. Oeyen , A. Olivas , E. O'Sullivan , H. Pandya , D. V. Pankova , N. Park , G. K. Parker , E. N. Paudel , L. Paul , C. Pérez de los Heros , L. Peters , J. Peterson , S. Philippen , S. Pieper , M. Pittermann , A. Pizzuto , M. Plum , Y. Popovych , A. Porcelli , M. Prado Rodriguez , B. Pries , G. T. Przybylski , C. Raab , J. Rack-Helleis , A. Raissi , M. Rameez , K. Rawlins , I. C. Rea , Z. Rechav , A. Rehman , P. Reichherzer , R. Reimann , G. Renzi , E. Resconi , S. Reusch , W. Rhode , M. Richman , B. Riedel , E. J. Roberts , S. Robertson , G. Roellinghoff , M. Rongen , C. Rott , T. Ruhe , D. Ryckbosch , D. Rysewyk Cantu , I. Safa , J. Saffer , S. E. Sanchez Herrera , A. Sandrock , M. Santander , S. Sarkar , S. Sarkar , K. Satalecka , M. Schaufel , H. Schieler , S. Schindler , T. Schmidt , A. Schneider , J. Schneider , F. G. Schröder , L. Schumacher , G. Schwefer , S. Sclafani , D. Seckel , S. Seunarine , A. Sharma , S. Shefali , N. Shimizu , M. Silva , B. Skrzypek , B. Smithers , R. Snihur , J. Soedingrekso , D. Soldin , C. Spannfellner , G. M. Spiczak , C. Spiering , J. Stachurska , M. Stamatikos , T. Stanev , R. Stein , J. Stettner , T. Stezelberger , T. Stürwald , T. Stuttard , G. W. Sullivan , I. Taboada , S. Ter-Antonyan , J. Thwaites , S. Tilav , F. Tischbein , K. Tollefson , C. Tönnis , S. Toscano , D. Tosi , A. Trettin , M. Tselengidou , C. F. Tung , A. Turcati , R. Turcotte , C. F. Turley , J. P. Twagirayezu , B. Ty , M. A. Unland Elorrieta , N. Valtonen-Mattila , J. Vandenbroucke , N. van Eijndhoven , D. Vannerom , J. van Santen , J. Veitch-Michaelis , S. Verpoest , C. Walck , W. Wang , T. B. Watson , C. Weaver , P. Weigel , A. Weindl , M. J. Weiss , J. Weldert , C. Wendt , J. Werthebach , M. Weyrauch , N. Whitehorn , C. H. Wiebusch , N. Willey , D. R. Williams , M. Wolf , G. Wrede , J. Wulff , X. W. Xu , J. P. Yanez , E. Yildizci , S. Yoshida , S. Yu , T. Yuan , Z. Zhang , P. Zhelnin

Evidence for Astrophysical Muon Neutrinos from the Northern Sky with IceCube

Results from the IceCube Neutrino Observatory have recently provided compelling evidence for the existence of a high energy astrophysical neutrino flux utilizing a dominantly Southern Hemisphere dataset consisting primarily of nu_e and…

High Energy Astrophysical Phenomena · Physics 2016-08-08 IceCube Collaboration , M. G. Aartsen , K. Abraham , M. Ackermann , J. Adams , J. A. Aguilar , M. Ahlers , M. Ahrens , D. Altmann , T. Anderson , M. Archinger , C. Arguelles , T. C. Arlen , J. Auffenberg , X. Bai , S. W. Barwick , V. Baum , R. Bay , J. J. Beatty , J. Becker Tjus , K. -H. Becker , E. Beiser , S. BenZvi , P. Berghaus , D. Berley , E. Bernardini , A. Bernhard , D. Z. Besson , G. Binder , D. Bindig , M. Bissok , E. Blaufuss , J. Blumenthal , D. J. Boersma , C. Bohm , M. Börner , F. Bos , D. Bose , S. Böser , O. Botner , J. Braun , L. Brayeur , H. -P. Bretz , A. M. Brown , N. Buzinsky , J. Casey , M. Casier , E. Cheung , D. Chirkin , A. Christov , B. Christy , K. Clark , L. Classen , S. Coenders , D. F. Cowen , A. H. Cruz Silva , J. Daughhetee , J. C. Davis , M. Day , J. P. A. M. de André , C. De Clercq , H. Dembinski , S. De Ridder , P. Desiati , K. D. de Vries , G. de Wasseige , M. de With , T. DeYoung , J. C. Díaz-Vélez , J. P. Dumm , M. Dunkman , R. Eagan , B. Eberhardt , T. Ehrhardt , B. Eichmann , S. Euler , P. A. Evenson , O. Fadiran , S. Fahey , A. R. Fazely , A. Fedynitch , J. Feintzeig , J. Felde , K. Filimonov , C. Finley , T. Fischer-Wasels , S. Flis , T. Fuchs , T. K. Gaisser , R. Gaior , J. Gallagher , L. Gerhardt , K. Ghorbani , D. Gier , L. Gladstone , M. Glagla , T. Glüsenkamp , A. Goldschmidt , G. Golup , J. G. Gonzalez , J. A. Goodman , D. Góra , D. Grant , P. Gretskov , J. C. Groh , A. Groß , C. Ha , C. Haack , A. Haj Ismail , A. Hallgren , F. Halzen , B. Hansmann , K. Hanson , D. Hebecker , D. Heereman , K. Helbing , R. Hellauer , D. Hellwig , S. Hickford , J. Hignight , G. C. Hill , K. D. Hoffman , R. Hoffmann , K. Holzapfel , A. Homeier , K. Hoshina , F. Huang , M. Huber , W. Huelsnitz , P. O. Hulth , K. Hultqvist , S. In , A. Ishihara , E. Jacobi , G. S. Japaridze , K. Jero , M. Jurkovic , B. Kaminsky , A. Kappes , T. Karg , A. Karle , M. Kauer , A. Keivani , J. L. Kelley , J. Kemp , A. Kheirandish , J. Kiryluk , J. Kläs , S. R. Klein , G. Kohnen , H. Kolanoski , R. Konietz , A. Koob , L. Köpke , C. Kopper , S. Kopper , D. J. Koskinen , M. Kowalski , K. Krings , G. Kroll , M. Kroll , J. Kunnen , N. Kurahashi , T. Kuwabara , M. Labare , J. L. Lanfranchi , M. J. Larson , M. Lesiak-Bzdak , M. Leuermann , J. Leuner , J. Lünemann , J. Madsen , G. Maggi , K. B. M. Mahn , R. Maruyama , K. Mase , H. S. Matis , R. Maunu , F. McNally , K. Meagher , M. Medici , A. Meli , T. Menne , G. Merino , T. Meures , S. Miarecki , E. Middell , E. Middlemas , J. Miller , L. Mohrmann , T. Montaruli , R. Morse , R. Nahnhauer , U. Naumann , H. Niederhausen , S. C. Nowicki , D. R. Nygren , A. Obertacke , A. Olivas , A. Omairat , A. O'Murchadha , T. Palczewski , L. Paul , J. A. Pepper , C. Pérez de los Heros , C. Pfendner , D. Pieloth , E. Pinat , J. Posselt , P. B. Price , G. T. Przybylski , J. Pütz , M. Quinnan , L. Rädel , M. Rameez , K. Rawlins , P. Redl , R. Reimann , M. Relich , E. Resconi , W. Rhode , M. Richman , S. Richter , B. Riedel , S. Robertson , M. Rongen , C. Rott , T. Ruhe , B. Ruzybayev , D. Ryckbosch , S. M. Saba , L. Sabbatini , H. -G. Sander , A. Sandrock , J. Sandroos , S. Sarkar , K. Schatto , F. Scheriau , M. Schimp , T. Schmidt , M. Schmitz , S. Schoenen , S. Schöneberg , A. Schönwald , A. Schukraft , L. Schulte , D. Seckel , S. Seunarine , R. Shanidze , M. W. E. Smith , D. Soldin , G. M. Spiczak , C. Spiering , M. Stahlberg , M. Stamatikos , T. Stanev , N. A. Stanisha , A. Stasik , T. Stezelberger , R. G. Stokstad , A. Stößl , E. A. Strahler , R. Ström , N. L. Strotjohann , G. W. Sullivan , M. Sutherland , H. Taavola , I. Taboada , S. Ter-Antonyan , A. Terliuk , G. Tešić , S. Tilav , P. A. Toale , M. N. Tobin , D. Tosi , M. Tselengidou , E. Unger , M. Usner , S. Vallecorsa , J. Vandenbroucke , N. van Eijndhoven , S. Vanheule , J. van Santen , J. Veenkamp , M. Vehring , M. Voge , M. Vraeghe , C. Walck , M. Wallraff , N. Wandkowsky , C. Weaver , C. Wendt , S. Westerhoff , B. J. Whelan , N. Whitehorn , C. Wichary , K. Wiebe , C. H. Wiebusch , L. Wille , D. R. Williams , H. Wissing , M. Wolf , T. R. Wood , K. Woschnagg , D. L. Xu , X. W. Xu , Y. Xu , J. P. Yanez , G. Yodh , S. Yoshida , P. Zarzhitsky , M. Zoll

Probing high-energy interactions of atmospheric and astrophysical neutrinos

Astrophysical and atmospheric neutrinos are important probes of the powerful accelerators that produce cosmic-rays with EeV energies. Understanding these accelerators is a key goal of neutrino observatories, along with searches for…

High Energy Astrophysical Phenomena · Physics 2019-06-07 Spencer R. Klein

Concept Study for Observing Galactic Neutrinos in Neptune's Atmosphere

I discuss the feasibility of a conceptual space-based neutrino detector that utilizes the Ice Giants as Targets for Galactic Neutrinos. The purpose of this research stems from the concept of wanting to find a new method of observing the…

High Energy Astrophysical Phenomena · Physics 2022-10-13 Trent English , Nick Solomey

Recent IceCube Measurements Using High Energy Neutrinos

The IceCube Neutrino Observatory, located at the geographic South Pole, is a Cherenkov detector that continuously monitors a cubic kilometer of instrumented glacial ice for neutrino interactions in the sub-TeV to EeV energy range. Its…

High Energy Astrophysical Phenomena · Physics 2019-10-04 Hans Niederhausen

Active Galactic Nuclei and the Origin of IceCube's Diffuse Neutrino Flux

The excess of neutrino candidate events detected by IceCube from the direction of TXS 0506+056 has generated a great deal of interest in blazars as sources of high-energy neutrinos. In this study, we analyze the publicly available portion…

High Energy Astrophysical Phenomena · Physics 2019-02-20 Dan Hooper , Tim Linden , Abby Vieregg

Contribution of Secondary Neutrinos from Line-of-sight Cosmic Ray Interactions to the IceCube Diffuse Astrophysical Flux

In ten years of observations, the IceCube neutrino observatory has revealed a neutrino sky in tension with previous expectations for neutrino point source emissions. Astrophysical objects associated with hadronic processes might act as…

High Energy Astrophysical Phenomena · Physics 2021-06-24 Alina Kochocki , Volodymyr Takhistov , Alexander Kusenko , Nathan Whitehorn

High energy neutrinos from radio-quiet AGNs

Most active galactic nuclei (AGN) lack prominent jets, and show modest radio emission and significant X-ray emission which arises mainly from the galactic core, very near from the central black hole. We use a quantitative scenario of such…

Astrophysics · Physics 2009-11-10 Jaime Alvarez-Muñiz , Peter Meszaros

Diffuse Neutrino Intensity from the Inner Jets of Active Galactic Nuclei: Impacts of External Photon Fields and the Blazar Sequence

We study high-energy neutrino production in inner jets of radio-loud active galactic nuclei (AGN), taking into account effects of external photon fields and the blazar sequence. We show that the resulting diffuse neutrino intensity is…

High Energy Astrophysical Phenomena · Physics 2014-08-08 Kohta Murase , Yoshiyuki Inoue , Charles D. Dermer

Multi-Messenger Search for Neutrino and Gravitational-Wave Emissions from Binary Black Holes Near Active Galactic Nuclei

Binary black holes (BBHs) in the vicinity of Active Galactic Nuclei (AGNs) are particularly interesting systems from both a cosmological and astrophysical point of view. Matter and radiation fields within the dense AGN environment could…

High Energy Astrophysical Phenomena · Physics 2025-10-27 Leonardo Ricca , Matthias Vereecken , Christoph Raab , Mathieu Lamoureux , Giacomo Bruno , Gwenhaël De Wasseige

Multi-Physics of AGN Jets in the Multi-Messenger Era

Active galactic nuclei (AGN) with relativistic jets, powered by gas accretion onto their central supermassive black hole (SMBH), are unique laboratories for studying the physics of matter and elementary particles in extreme conditions that…

High Energy Astrophysical Phenomena · Physics 2019-03-13 B. Rani , M. Petropoulou , H. Zhang , F. D'Ammando , J. Finke , M. Baring , M. Böttcher , S. Dimitrakoudis , Z. Gan , D. Giannios , D. H. Hartmann , T. P. Krichbaum , A. P. Marscher , A. Mastichiadis , K. Nalewajko , R. Ojha , D. Paneque , C. Shrader , L. Sironi , A. Tchekhovskoy , D. J. Thompson , N. Vlahakis , T. M. Venters

Multi-Energy and Multi-Sample Searches for Neutrinos from GW Events

The IceCube Neutrino Observatory at the South Pole detects neutrinos of astrophysical origin via their interactions with ice. The main array is optimized for the detection of neutrinos with energies above 1 TeV. A much smaller infill array,…

High Energy Astrophysical Phenomena · Physics 2025-08-13 Aswathi Balagopal V. , Sam Hori , Justin Vandenbroucke

Cosmic Neutrinos and the Cosmic-Ray Accelerator TXS 0506+056

IceCube discovered a flux of cosmic neutrinos originating in extragalactic sources with an energy density close to that in gamma rays and cosmic rays. A multimessenger campaign triggered by the coincident observation of a gamma-ray flare…

High Energy Astrophysical Phenomena · Physics 2019-09-23 Francis Halzen

High-energy Neutrinos from Stellar Explosions in Active Galactic Nuclei Accretion Disks

Some catastrophic stellar explosions, such as supernovae (SNe), compact binary coalescences, and micro-tidal disruption events, are believed to be embedded in the accretion disks of active galactic nuclei (AGN). We show high-energy…

High Energy Astrophysical Phenomena · Physics 2021-08-23 Jin-Ping Zhu , Kai Wang , Bing Zhang

Radio-to-gamma-ray synchrotron and neutrino emission from proton-proton interactions in active galactic nuclei

We explore possible physical origin of correlation between radio wave and very-high-energy neutrino emission in active galactic nuclei (AGN), suggested by recently reported evidence for correlation between neutrino arrival directions and…

High Energy Astrophysical Phenomena · Physics 2021-02-03 Andrii Neronov , Dmitry Semikoz