Related papers: An exploration of hadronic interactions in blazars…

High-Energy Gamma Rays and Neutrinos from Nearby Radio Galaxies

Multi-messenger data suggest that radio galaxies (i.e. non-blazar active galaxies) are perhaps the most likely class of sources for the diffuse flux of high-energy neutrinos reported by the IceCube Collaboration. In this study, we consider…

High Energy Astrophysical Phenomena · Physics 2018-11-30 Carlos Blanco , Dan Hooper

Time-dependent lepto-hadronic modeling of the emission from blazar jets with SOPRANO: the case of TXS 0506+056, 3HSP J095507.9+355101 and 3C 279

The observation of a very-high-energy neutrino by IceCube (IceCube-170922A) and its association with the flaring blazar TXS 0506+056 provided the first multimessenger observations of blazar jets, demonstrating the important role of protons…

High Energy Astrophysical Phenomena · Physics 2021-12-08 Sargis Gasparyan , Damien Bégué , Narek Sahakyan

Revisiting AGN as the Source of IceCube's Diffuse Neutrino Flux

The origin of the astrophysical neutrino flux reported by the IceCube Collaboration remains an open question. In this study, we use three years of publicly available IceCube data to search for evidence of neutrino emission from the blazars…

High Energy Astrophysical Phenomena · Physics 2021-03-17 Daniel Smith , Dan Hooper , Abigail Vieregg

Cosmic neutrino cascades from secret neutrino interactions

The first detection of high-energy astrophysical neutrinos by IceCube provides new opportunities for tests of neutrino properties. The long baseline through the Cosmic Neutrino Background (C$\nu$B) is particularly useful for directly…

High Energy Astrophysical Phenomena · Physics 2014-11-04 Kenny C. Y. Ng , John F. Beacom

On the direct correlation between gamma-rays and PeV neutrinos from blazars

We study the frequently used assumption in multi-messenger astrophysics that the gamma-ray and neutrino fluxes are directly connected because they are assumed to be produced by the same photohadronic production chain. An interesting…

High Energy Astrophysical Phenomena · Physics 2017-07-26 Shan Gao , Martin Pohl , Walter Winter

Neutrino Background Flux from Sources of Ultrahigh-Energy Cosmic-Ray Nuclei

Motivated by Pierre Auger Observatory results favoring a heavy nuclear composition for ultrahigh-energy (UHE) cosmic rays, we investigate implications for the cumulative neutrino background. The requirement that nuclei not be…

High Energy Astrophysical Phenomena · Physics 2016-03-14 Kohta Murase , John F. Beacom

Photohadronic Modelling of the 2010 Gamma-ray Flare from Mrk 421

Blazars are a subclass of active galactic nuclei (AGN) that have a relativistic jet with a small viewing angle towards the observer. Recent results based on hadronic scenarios have motivated an ongoing discussion of how a blazar can produce…

High Energy Astrophysical Phenomena · Physics 2021-01-07 A. Rosales de León , A. M. Brown , P. M. Chadwick

Neutrino analysis of the September 2010 Crab Nebula flare and time-integrated constraints on neutrino emission from the Crab using IceCube

We present the results for a search of high-energy muon neutrinos with the IceCube detector in coincidence with the Crab nebula flare reported on September 2010 by various experiments. Due to the unusual flaring state of the otherwise…

High Energy Astrophysical Phenomena · Physics 2015-05-28 IceCube Collaboration , R. Abbasi , Y. Abdou , T. Abu-Zayyad , J. Adams , J. A. Aguilar , M. Ahlers , D. Altmann , K. Andeen , J. Auffenberg , X. Bai , M. Baker , S. W. Barwick , R. Bay , J. L. Bazo Alba , K. Beattie , J. J. Beatty , S. Bechet , J. K. Becker , K. -H. Becker , M. L. Benabderrahmane , S. BenZvi , J. Berdermann , P. Berghaus , D. Berley , E. Bernardini , D. Bertrand , D. Z. Besson , D. Bindig , M. Bissok , E. Blaufuss , J. Blumenthal , D. J. Boersma , C. Bohm , D. Bose , S. Böser , O. Botner , A. M. Brown , S. Buitink , K. S. Caballero-Mora , M. Carson , D. Chirkin , B. Christy , J. Clem , F. Clevermann , S. Cohen , C. Colnard , D. F. Cowen , M. V. D'Agostino , M. Danninger , J. Daughhetee , J. C. Davis , C. De Clercq , L. Demirörs , T. Denger , O. Depaepe , F. Descamps , P. Desiati , G. de Vries-Uiterweerd , T. DeYoung , J. C. Díaz-Vélez , M. Dierckxsens , J. Dreyer , J. P. Dumm , R. Ehrlich , J. Eisch , R. W. Ellsworth , O. Engdegård , S. Euler , P. A. Evenson , O. Fadiran , A. R. Fazely , A. Fedynitch , J. Feintzeig , T. Feusels , K. Filimonov , C. Finley , T. Fischer-Wasels , M. M. Foerster , B. D. Fox , A. Franckowiak , R. Franke , T. K. Gaisser , J. Gallagher , L. Gerhardt , L. Gladstone , T. Glüsenkamp , A. Goldschmidt , J. A. Goodman , D. Gora , D. Grant , T. Griesel , A. Groß , S. Grullon , M. Gurtner , C. Ha , A. Hajismail , A. Hallgren , F. Halzen , K. Han , K. Hanson , D. Heinen , K. Helbing , P. Herquet , S. Hickford , G. C. Hill , K. D. Hoffman , A. Homeier , K. Hoshina , D. Hubert , W. Huelsnitz , J. -P. Hülß , P. O. Hulth , K. Hultqvist , S. Hussain , A. Ishihara , J. Jacobsen , G. S. Japaridze , H. Johansson , J. M. Joseph , K. -H. Kampert , A. Kappes , T. Karg , A. Karle , P. Kenny , J. Kiryluk , F. Kislat , S. R. Klein , J. -H. Köhne , G. Kohnen , H. Kolanoski , L. Köpke , S. Kopper , D. J. Koskinen , M. Kowalski , T. Kowarik , M. Krasberg , T. Krings , G. Kroll , N. Kurahashi , T. Kuwabara , M. Labare , S. Lafebre , K. Laihem , H. Landsman , M. J. Larson , R. Lauer , J. Lünemann , B. Madajczyk , J. Madsen , P. Majumdar , A. Marotta , R. Maruyama , K. Mase , H. S. Matis , K. Meagher , M. Merck , P. Mészáros , T. Meures , E. Middell , N. Milke , J. Miller , T. Montaruli , R. Morse , S. M. Movit , R. Nahnhauer , J. W. Nam , U. Naumann , P. Nießen , D. R. Nygren , S. Odrowski , A. Olivas , M. Olivo , A. O'Murchadha , M. Ono , S. Panknin , L. Paul , C. Pérez de los Heros , J. Petrovic , A. Piegsa , D. Pieloth , R. Porrata , J. Posselt , C. C. Price , P. B. Price , G. T. Przybylski , K. Rawlins , P. Redl , E. Resconi , W. Rhode , M. Ribordy , A. Rizzo , J. P. Rodrigues , P. Roth , F. Rothmaier , C. Rott , T. Ruhe , D. Rutledge , B. Ruzybayev , D. Ryckbosch , H. -G. Sander , M. Santander , S. Sarkar , K. Schatto , T. Schmidt , A. Schönwald , A. Schukraft , A. Schultes , O. Schulz , M. Schunck , D. Seckel , B. Semburg , S. H. Seo , Y. Sestayo , S. Seunarine , A. Silvestri , A. Slipak , G. M. Spiczak , C. Spiering , M. Stamatikos , T. Stanev , G. Stephens , T. Stezelberger , R. G. Stokstad , A. Stössl , S. Stoyanov , E. A. Strahler , T. Straszheim , M. Stür , G. W. Sullivan , Q. Swillens , H. Taavola , I. Taboada , A. Tamburro , A. Tepe , S. Ter-Antonyan , S. Tilav , P. A. Toale , S. Toscano , D. Tosi , D. Turčan , N. van Eijndhoven , J. Vandenbroucke , A. Van Overloop , J. van Santen , M. Vehring , M. Voge , C. Walck , T. Waldenmaier , M. Wallraff , M. Walter , Ch. Weaver , C. Wendt , S. Westerhoff , N. Whitehorn , K. Wiebe , C. H. Wiebusch , D. R. Williams , R. Wischnewski , H. Wissing , M. Wolf , T. R. Wood , K. Woschnagg , C. Xu , X. W. Xu , G. Yodh , S. Yoshida , P. Zarzhitsky , M. Zoll

High-Energy Neutrino Production through Photopion Processes in Blazars

The measured spectral energy distribution and variability time scale are used to determine the radiation and magnetic-field energy densities in the relativistic plasma that forms the gamma-ray emitting jet in the blazar 3C 279. Assuming…

Astrophysics · Physics 2007-05-23 C. D. Dermer , A. Atoyan

Correlation of highly variable blazars with TeV IceCube track events

The first ever identification of a cosmic ray accelerator as the consequence of spacial and temporal correlation of IceCube event 170922A with flaring of a blazar TXS 0506+056 motivated us to look for other flaring blazars in Fermi-LAT 3FGL…

High Energy Astrophysical Phenomena · Physics 2020-02-06 R. Moharana , P. Majumdar , P. P. Basumallick , D. Bose , R. Prince , N. Gupta

Search for joint multimessenger signals from potential galactic cosmic-ray accelerators with HAWC and IceCube

The origin of high-energy galactic cosmic rays is yet to be understood, but some galactic cosmic-ray accelerators can accelerate cosmic rays up to PeV energies. The high-energy cosmic rays are expected to interact with the surrounding…

High Energy Astrophysical Phenomena · Physics 2025-04-18 R. Alfaro , C. Alvarez , J. C. Arteaga-Velázquez , D. Avila Rojas , H. A. Ayala Solares , R. Babu , E. Belmont-Moreno , K. S. Caballero-Mora , T. Capistrán , A. Carramiñana , S. Casanova , U. Cotti , J. Cotzomi , S. Coutiño de León , E. De la Fuente , D. Depaoli , N. Di Lalla , R. Diaz Hernandez , J. C. Díaz-Vélez , K. Engel , T. Ergin , K. L. Fan , K. Fang , N. Fraija , S. Fraija , J. A. García-González , F. Garfias , M. M. González , J. A. Goodman , S. Groetsch , J. P. Harding , S. Hernández-Cadena , I. Herzog , D. Huang , F. Hueyotl-Zahuantitla , P. Hüntemeyer , A. Iriarte , S. Kaufmann , J. Lee , H. León Vargas , A. L. Longinotti , G. Luis-Raya , K. Malone , J. Martínez-Castro , J. A. Matthews , P. Miranda-Romagnoli , J. A. Montes , E. Moreno , M. Mostafá , L. Nellen , N. Omodei , M. Osorio , Y. Pérez Araujo , E. G. Pérez-Pérez , C. D. Rho , D. Rosa-González , H. Salazar , D. Salazar-Gallegos , A. Sandoval , M. Schneider , J. Serna-Franco , A. J. Smith , Y. Son , O. Tibolla , K. Tollefson , I. Torres , R. Torres-Escobedo , R. Turner , F. Ureña-Mena , X. Wang , I. J. Watson , K. Whitaker , E. Willox , H. Wu , S. Yun-Cárcamo , H. Zhou , C. de León , R. Abbasi , M. Ackermann , J. Adams , S. K. Agarwalla , J. A. Aguilar , M. Ahlers , J. M. Alameddine , N. M. Amin , K. Andeen , C. Argüelles , Y. Ashida , S. Athanasiadou , L. Ausborm , S. N. Axani , X. Bai , A. Balagopal V. , M. Baricevic , S. W. Barwick , S. Bash , V. Basu , R. Bay , J. J. Beatty , J. Becker Tjus , J. Beise , C. Bellenghi , C. Benning , S. BenZvi , D. Berley , E. Bernardini , D. Z. Besson , E. Blaufuss , L. Bloom , S. Blot , F. Bontempo , J. Y. Book Motzkin , C. Boscolo Meneguolo , S. Böser , O. Botner , J. Böttcher , J. Braun , B. Brinson , J. Brostean-Kaiser , L. Brusa , R. T. Burley , D. Butterfield , M. A. Campana , I. Caracas , K. Carloni , J. Carpio , S. Chattopadhyay , N. Chau , Z. Chen , D. Chirkin , S. Choi , B. A. Clark , A. Coleman , G. H. Collin , A. Connolly , J. M. Conrad , P. Coppin , R. Corley , P. Correa , D. F. Cowen , P. Dave , C. De Clercq , J. J. DeLaunay , D. Delgado , S. Deng , A. Desai , P. Desiati , K. D. de Vries , G. de Wasseige , T. DeYoung , A. Diaz , J. C. Díaz-Vélez , P. Dierichs , M. Dittmer , A. Domi , L. Draper , H. Dujmovic , K. Dutta , M. A. DuVernois , T. Ehrhardt , L. Eidenschink , A. Eimer , P. Eller , E. Ellinger , S. El Mentawi , D. Elsässer , R. Engel , H. Erpenbeck , J. Evans , P. A. Evenson , K. Farrag , A. R. Fazely , A. Fedynitch , N. Feigl , S. Fiedlschuster , C. Finley , L. Fischer , D. Fox , A. Franckowiak , S. Fukami , P. Fürst , J. Gallagher , E. Ganster , A. Garcia , M. Garcia , G. Garg , E. Genton , L. Gerhardt , A. Ghadimi , C. Girard-Carillo , C. Glaser , T. Glüsenkamp , J. G. Gonzalez , S. Goswami , A. Granados , D. Grant , S. J. Gray , O. Gries , S. Griffin , S. Griswold , K. M. Groth , C. Günther , P. Gutjahr , C. Ha , C. Haack , A. Hallgren , L. Halve , F. Halzen , H. Hamdaoui , M. Ha Minh , M. Handt , K. Hanson , J. Hardin , A. A. Harnisch , P. Hatch , A. Haungs , J. Häußler , K. Helbing , J. Hellrung , J. Hermannsgabner , L. Heuermann , N. Heyer , S. Hickford , A. Hidvegi , C. Hill , G. C. Hill , K. D. Hoffman , S. Hori , K. Hoshina , M. Hostert , W. Hou , T. Huber , K. Hultqvist , M. Hünnefeld , R. Hussain , K. Hymon , A. Ishihara , W. Iwakiri , M. Jacquart , O. Janik , M. Jansson , G. S. Japaridze , M. Jeong , M. Jin , B. J. P. Jones , N. Kamp , D. Kang , W. Kang , X. Kang , A. Kappes , D. Kappesser , L. Kardum , T. Karg , M. Karl , A. Karle , A. Katil , U. Katz , M. Kauer , J. L. Kelley , M. Khanal , A. Khatee Zathul , A. Kheirandish , J. Kiryluk , S. R. Klein , A. Kochocki , R. Koirala , H. Kolanoski , T. Kontrimas , L. Köpke , C. Kopper , D. J. Koskinen , P. Koundal , M. Kovacevich , M. Kowalski , T. Kozynets , J. Krishnamoorthi , K. Kruiswijk , E. Krupczak , A. Kumar , E. Kun , N. Kurahashi , N. Lad , C. Lagunas Gualda , M. Lamoureux , M. J. Larson , S. Latseva , F. Lauber , J. P. Lazar , J. W. Lee , K. Leonard DeHolton , A. Leszczyńska , J. Liao , M. Lincetto , Y. T. Liu , M. Liubarska , E. Lohfink , C. Love , C. J. Lozano Mariscal , L. Lu , F. Lucarelli , W. Luszczak , Y. Lyu , J. Madsen , E. Magnus , K. B. M. Mahn , Y. Makino , E. Manao , S. Mancina , W. Marie Sainte , I. C. Mariş , S. Marka , Z. Marka , M. Marsee , I. Martinez-Soler , R. Maruyama , F. Mayhew , F. McNally , J. V. Mead , K. Meagher , S. Mechbal , A. Medina , M. Meier , Y. Merckx , L. Merten , J. Micallef , J. Mitchell , T. Montaruli , R. W. Moore , Y. Morii , R. Morse , M. Moulai , T. Mukherjee , R. Naab , R. Nagai , M. Nakos , U. Naumann , J. Necker , A. Negi , L. Neste , M. Neumann , H. Niederhausen , K. Noda , A. Noell , A. Novikov , A. Obertacke Pollmann , V. O'Dell , B. Oeyen , A. Olivas , R. Orsoe , J. Osborn , E. O'Sullivan , H. Pandya , N. Park , G. K. Parker , E. N. Paudel , L. Paul , C. Pérez de los Heros , T. Pernice , J. Peterson , S. Philippen , A. Pizzuto , M. Plum , A. Pontén , Y. Popovych , M. Prado Rodriguez , B. Pries , R. Procter-Murphy , G. T. Przybylski , C. Raab , J. Rack-Helleis , M. Ravn , K. Rawlins , Z. Rechav , A. Rehman , P. Reichherzer , E. Resconi , S. Reusch , W. Rhode , B. Riedel , A. Rifaie , E. J. Roberts , S. Robertson , S. Rodan , G. Roellinghoff , M. Rongen , A. Rosted , C. Rott , T. Ruhe , L. Ruohan , D. Ryckbosch , I. Safa , J. Saffer , P. Sampathkumar , A. Sandrock , M. Santander , S. Sarkar , S. Sarkar , J. Savelberg , P. Savina , P. Schaile , M. Schaufel , H. Schieler , S. Schindler , B. Schlüter , F. Schlüter , N. Schmeisser , T. Schmidt , J. Schneider , F. G. Schröder , L. Schumacher , S. Sclafani , D. Seckel , M. Seikh , M. Seo , S. Seunarine , P. Sevle Myhr , R. Shah , S. Shefali , N. Shimizu , M. Silva , B. Skrzypek , B. Smithers , R. Snihur , J. Soedingrekso , A. Søgaard , D. Soldin , P. Soldin , G. Sommani , C. Spannfellner , G. M. Spiczak , C. Spiering , M. Stamatikos , T. Stanev , T. Stezelberger , T. Stürwald , T. Stuttard , G. W. Sullivan , I. Taboada , S. Ter-Antonyan , A. Terliuk , M. Thiesmeyer , W. G. Thompson , J. Thwaites , S. Tilav , C. Tönnis , S. Toscano , D. Tosi , A. Trettin , R. Turcotte , J. P. Twagirayezu , M. A. Unland Elorrieta , A. K. Upadhyay , K. Upshaw , A. Vaidyanathan , N. Valtonen-Mattila , J. Vandenbroucke , N. van Eijndhoven , D. Vannerom , J. van Santen , J. Vara , J. Veitch-Michaelis , M. Venugopal , M. Vereecken , S. Verpoest , D. Veske , A. Vijai , C. Walck , A. Wang , C. Weaver , P. Weigel , A. Weindl , J. Weldert , A. Y. Wen , C. Wendt , J. Werthebach , M. Weyrauch , N. Whitehorn , C. H. Wiebusch , D. R. Williams , L. Witthaus , A. Wolf , M. Wolf , G. Wrede , X. W. Xu , J. P. Yanez , E. Yildizci , S. Yoshida , R. Young , S. Yu , T. Yuan , Z. Zhang , P. Zhelnin , P. Zilberman , M. Zimmerman

Neutrino Observations of LHAASO Sources: Present Constraints and Future Prospects

The Large High Altitude Air Shower Observatory (LHAASO) observed a dozen of gamma-ray sources with significant emission above 100 TeV, which may be strong candidates of PeVatrons. Neutrino observations are crucial to diagnose whether the…

High Energy Astrophysical Phenomena · Physics 2022-06-15 Tian-Qi Huang , Zhuo Li

Searching for VHE gamma-ray emission associated with IceCube astrophysical neutrinos using FACT, H.E.S.S., MAGIC, and VERITAS

The detection of an astrophysical flux of high-energy neutrinos by IceCube is a major step forward in the search for the origin of cosmic rays, as this emission is expected to originate in hadronic interactions taking place in or near…

High Energy Astrophysical Phenomena · Physics 2019-08-15 M. Santander , D. Dorner , J. Dumm , K. Satalecka , F. Schüssler

A Case for Radio Galaxies as the Sources of IceCube's Astrophysical Neutrino Flux

We present an argument that radio galaxies (active galaxies with mis-aligned jets) are likely to be the primary sources of the high-energy astrophysical neutrinos observed by IceCube. In particular, if the gamma-ray emission observed from…

High Energy Astrophysical Phenomena · Physics 2016-09-21 Dan Hooper

Origin of the high energy neutrino flux at IceCube

We discuss the spectrum of the different components in the astrophysical neutrino flux reaching the Earth and the possible contribution of each component to the high-energy IceCube data. We show that the diffuse flux from cosmic ray…

High Energy Astrophysical Phenomena · Physics 2018-01-10 J. M. Carceller , J. I. Illana , M. Masip , D. Meloni

Constraints on neutrino emission and hadronic flux from 1LHAASO catalog $\gamma$-ray sources

IceCube has detected neutrino emission from the Galactic Plane (GP) at a significance of $4.5\sigma$, though its origin remains uncertain. Utilizing ten years of IceCube muon-track data, we investigate potential correlations between the GP…

High Energy Astrophysical Phenomena · Physics 2026-02-26 Xue-Rui Ouyang , Yun-Feng Liang , Shi-Long Chen , Rong-Lan Li , Ming-Xuan Lu

Neutrino constraints and detection prospects from gamma-ray bursts with different jet compositions

The prompt emission mechanism of gamma-ray bursts (GRBs) is a long-standing open question, and GRBs have been considered as potential sources of high-energy neutrinos. Despite many years of search for the neutrino events associated with…

High Energy Astrophysical Phenomena · Physics 2024-11-26 Yang-Dong-Jun Ou , Hou-Jun Lü , Xue-Zhao Chang , Xiao-Xuan Liu , En-Wei Liang

The Impact of Southern-Hemisphere Radio Blazar Observations on Neutrino Astronomy

The origin of high-energy cosmic neutrinos detected by the IceCube observatory is a hotly debated topic in astroparticle physics. There is growing evidence that some of these neutrinos can be associated with active galactic nuclei (AGN) and…

High Energy Astrophysical Phenomena · Physics 2023-10-12 F. Rösch , P. Benke , M. Kadler , E. Ros , R. Ojha , P. G. Edwards , F. Eppel , J. Heßdörfer , J. Stevens

High-Energy Neutrino Emission from Blazars

Active galactic nuclei (AGN) with relativistic jets are the most powerful persistent astrophysical sources of electromagnetic radiation in the Universe. Blazars are the most extreme subclass of AGN with jets directed along the line of sight…

High Energy Astrophysical Phenomena · Physics 2022-01-19 Foteini Oikonomou

Search for neutrino sources from the direction of IceCube alert events

We search for additional neutrino emission from the direction of IceCube's highest energy public alert events. We take the arrival direction of 122 events with a high probability of being of astrophysical origin and look for steady and…

High Energy Astrophysical Phenomena · Physics 2023-07-31 Martina Karl