Related papers: A ring accelerator? Unusual jet dynamics in the Ic…

Comprehensive Multimessenger Modeling of the Extreme Blazar 3HSP J095507.9+355101 and Predictions for IceCube

3HSP J095507.9+355101 is an extreme blazar which has been possibly associated with a high-energy neutrino (IceCube-200107A) detected one day before the blazar was found to undergo a hard X-ray flare. We perform a comprehensive study of the…

High Energy Astrophysical Phenomena · Physics 2020-09-01 Maria Petropoulou , Foteini Oikonomou , Apostolos Mastichiadis , Kohta Murase , Paolo Padovani , Georgios Vasilopoulos , Paolo Giommi

Does the spectral break in the IceCube diffuse neutrino spectrum originate from AGN evolution?

The enigmatic origin of the diffuse neutrino background detected by IceCube in the energy range from TeV to PeV remains one of the central open problems in high-energy astrophysics, and this puzzle is further deepened by the recent evidence…

High Energy Astrophysical Phenomena · Physics 2026-04-10 Caijin Xie , Zijian Qiu , Yudong Cui , Sujie Lin , Lili Yang

The IceCube-Gen2 Neutrino Observatory

The IceCube Neutrino Observatory opened the window on neutrino astronomy by discovering high-energy astrophysical neutrinos in 2013 and identifying the first compelling astrophysical neutrino source, the blazar TXS0506+056, in 2017. In this…

High Energy Astrophysical Phenomena · Physics 2021-11-17 Brian Clark

Photohadronic origin of $\gamma$-ray BL Lac emission: implications for IceCube neutrinos

The recent IceCube discovery of 0.1-1 PeV neutrinos of astrophysical origin opens up a new era for high-energy astrophysics. Although there are various astrophysical candidate sources, a firm association of the detected neutrinos with one…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Maria Petropoulou , Stavros Dimitrakoudis , Paolo Padovani , Apostolos Mastichiadis , Elisa Resconi

The variability of blazars throughout the electromagnetic spectrum

With their jet pointing towards us, blazars are ideal tools to study the physics and structure of extragalactic jets. Their powerful jets are cosmic particle accelerators and are alleged to be one of the production sites of the high-energy…

High Energy Astrophysical Phenomena · Physics 2025-11-25 Claudia M. Raiteri

Simulation and sensitivities for a phased IceCube-Gen2 deployment

The IceCube Neutrino Observatory opened the window on high-energy neutrino astronomy by confirming the existence of PeV astrophysical neutrinos and identifying the first compelling astrophysical neutrino source in the blazar TXS0506+056.…

High Energy Astrophysical Phenomena · Physics 2021-07-20 Brian Clark , Robert Halliday

Multi-messenger flare in the quasar PKS 0446+11

The physical mechanisms driving neutrino and electromagnetic flares in blazars remain poorly understood. We investigate a prominent multi-messenger flare in the quasar PKS 1424+240 to identify the processes responsible for its high-energy…

High Energy Astrophysical Phenomena · Physics 2026-05-06 Y. Y. Kovalev , M. F. Aller , A. K. Erkenov , J. L. Gómez , D. C. Homan , P. I. Kivokurtseva , Yu. A. Kovalev , M. L. Lister , P. V. de la Parra , A. V. Plavin , A. V. Popkov , A. B. Pushkarev , A. C. S. Readhead , E. Shablovinskaia , Yu. V. Sotnikova , O. I. Spiridonova , S. V. Troitsky , V. V. Vlasyuk

A Search for a Diffuse Flux of Astrophysical Muon Neutrinos with the IceCube 40-String Detector

The IceCube Neutrino Observatory is a 1 km$^{3}$ detector currently taking data at the South Pole. One of the main strategies used to look for astrophysical neutrinos with IceCube is the search for a diffuse flux of high-energy neutrinos…

High Energy Astrophysical Phenomena · Physics 2013-05-29 IceCube Collaboration , R. Abbasi , Y. Abdou , T. Abu-Zayyad , J. Adams , J. A. Aguilar , M. Ahlers , 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 , J. Braun , A. M. Brown , S. Buitink , 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 , T. Feusels , K. Filimonov , C. Finley , T. Fischer-Wasels , M. M. Foerster , B. D. Fox , A. Franckowiak , R. Franke , T. K. Gaisser , J. Gallagher , M. Geisler , 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. 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 , J. L. Kelley , 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 , T. Kuwabara , M. Labare , S. Lafebre , K. Laihem , H. Landsman , M. J. Larson , R. Lauer , J. Lünemann , 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 , 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

Neutrino emission from BL Lac objects: the role of radiatively inefficient accretion flows

The origin of the astrophysical high-energy neutrinos discovered by IceCube is currently a major mystery. The recent detection of IceCube-170922A, a $\sim$300 TeV neutrino potentially correlated with the flaring $\gamma$-ray source TXS…

High Energy Astrophysical Phenomena · Physics 2018-12-19 C. Righi , F. Tavecchio , S. Inoue

A Search for Millimeter-Bright Blazars as Astrophysical Neutrino Sources

The powerful jets of blazars have been historically considered as likely sites of high-energy cosmic-ray acceleration. However, particulars of the launched jet and the locations of leptonic and hadronic jet loading remain unclear. In the…

High Energy Astrophysical Phenomena · Physics 2025-07-08 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 , S. N. Axani , R. Babu , X. Bai , J. Baines-Holmes , A. Balagopal V. , S. W. Barwick , S. Bash , V. Basu , R. Bay , J. J. Beatty , J. Becker Tjus , P. Behrens , J. Beise , C. Bellenghi , B. Benkel , S. BenZvi , D. Berley , E. Bernardini , D. Z. Besson , E. Blaufuss , L. Bloom , S. Blot , I. Bodo , F. Bontempo , J. Y. Book Motzkin , C. Boscolo Meneguolo , S. Böser , O. Botner , J. Böttcher , J. Braun , B. Brinson , Z. Brisson-Tsavoussis , R. T. Burley , D. Butterfield , M. A. Campana , K. Carloni , J. Carpio , S. Chattopadhyay , N. Chau , Z. Chen , D. Chirkin , S. Choi , B. A. Clark , A. Coleman , P. Coleman , G. H. Collin , A. Connolly , J. M. Conrad , R. Corley , D. F. Cowen , C. De Clercq , J. J. DeLaunay , D. Delgado , T. Delmeulle , S. Deng , P. Desiati , K. D. de Vries , G. de Wasseige , T. DeYoung , J. C. Díaz-Vélez , S. DiKerby , M. Dittmer , A. Domi , L. Draper , L. Dueser , D. Durnford , K. Dutta , M. A. DuVernois , T. Ehrhardt , L. Eidenschink , A. Eimer , P. Eller , E. Ellinger , D. Elsässer , R. Engel , H. Erpenbeck , W. Esmail , S. Eulig , J. Evans , P. A. Evenson , K. L. Fan , K. Fang , K. Farrag , A. R. Fazely , A. Fedynitch , N. Feigl , 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. Glaser , T. Glüsenkamp , J. G. Gonzalez , S. Goswami , A. Granados , D. Grant , S. J. Gray , S. Griffin , S. Griswold , K. M. Groth , D. Guevel , C. Günther , P. Gutjahr , C. Ha , C. Haack , A. Hallgren , L. Halve , F. Halzen , L. Hamacher , M. Ha Minh , M. Handt , K. Hanson , J. Hardin , A. A. Harnisch , P. Hatch , A. Haungs , J. Häußler , K. Helbing , J. Hellrung , L. Hennig , L. Heuermann , R. Hewett , N. Heyer , S. Hickford , A. Hidvegi , C. Hill , G. C. Hill , R. Hmaid , K. D. Hoffman , D. Hooper , S. Hori , K. Hoshina , M. Hostert , W. Hou , T. Huber , K. Hultqvist , K. Hymon , A. Ishihara , W. Iwakiri , M. Jacquart , S. Jain , O. Janik , M. Jeong , M. Jin , N. Kamp , D. Kang , X. Kang , A. Kappes , L. Kardum , T. Karg , M. Karl , A. Karle , A. Katil , M. Kauer , J. L. Kelley , M. Khanal , A. Khatee Zathul , A. Kheirandish , H. Kimku , J. Kiryluk , C. Klein , S. R. Klein , Y. Kobayashi , A. Kochocki , R. Koirala , H. Kolanoski , T. Kontrimas , L. Köpke , C. Kopper , D. J. Koskinen , P. Koundal , M. Kowalski , T. Kozynets , N. Krieger , J. Krishnamoorthi , T. Krishnan , K. Kruiswijk , E. Krupczak , A. Kumar , E. Kun , N. Kurahashi , N. Lad , C. Lagunas Gualda , L. Lallement Arnaud , M. Lamoureux , M. J. Larson , F. Lauber , J. P. Lazar , K. Leonard DeHolton , A. Leszczyńska , J. Liao , Y. T. Liu , M. Liubarska , C. Love , L. Lu , F. Lucarelli , W. Luszczak , Y. Lyu , J. Madsen , E. Magnus , K. B. M. Mahn , Y. Makino , E. Manao , S. Mancina , A. Mand , I. C. Mariş , S. Marka , Z. Marka , L. Marten , 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. Mitchell , L. Molchany , T. Montaruli , R. W. Moore , Y. Morii , A. Mosbrugger , M. Moulai , D. Mousadi , T. Mukherjee , R. Naab , M. Nakos , U. Naumann , J. Necker , L. Neste , M. Neumann , H. Niederhausen , M. U. Nisa , K. Noda , A. Noell , A. Novikov , A. Obertacke Pollmann , V. O'Dell , A. Olivas , R. Orsoe , J. Osborn , E. O'Sullivan , V. Palusova , H. Pandya , A. Parenti , N. Park , V. Parrish , E. N. Paudel , L. Paul , C. Pérez de los Heros , T. Pernice , J. Peterson , M. Plum , A. Pontén , V. Poojyam , Y. Popovych , M. Prado Rodriguez , B. Pries , R. Procter-Murphy , G. T. Przybylski , L. Pyras , C. Raab , J. Rack-Helleis , N. Rad , M. Ravn , K. Rawlins , Z. Rechav , A. Rehman , I. Reistroffer , E. Resconi , S. Reusch , C. D. Rho , W. Rhode , B. Riedel , A. Rifaie , E. J. Roberts , S. Robertson , M. Rongen , A. Rosted , C. Rott , T. Ruhe , L. Ruohan , J. Saffer , D. Salazar-Gallegos , P. Sampathkumar , A. Sandrock , G. Sanger-Johnson , M. Santander , S. Sarkar , J. Savelberg , P. Schaile , M. Schaufel , H. Schieler , S. Schindler , L. Schlickmann , B. Schlüter , F. Schlüter , N. Schmeisser , T. Schmidt , F. G. Schröder , L. Schumacher , S. Schwirn , S. Sclafani , D. Seckel , L. Seen , M. Seikh , S. Seunarine , P. A. Sevle Myhr , R. Shah , S. Shefali , N. Shimizu , B. Skrzypek , R. Snihur , J. Soedingrekso , A. Søgaard , D. Soldin , P. Soldin , G. Sommani , C. Spannfellner , G. M. Spiczak , C. Spiering , J. Stachurska , M. Stamatikos , T. Stanev , T. Stezelberger , T. Stürwald , T. Stuttard , G. W. Sullivan , I. Taboada , S. Ter-Antonyan , A. Terliuk , A. Thakuri , M. Thiesmeyer , W. G. Thompson , J. Thwaites , S. Tilav , K. Tollefson , S. Toscano , D. Tosi , A. Trettin , A. K. Upadhyay , K. Upshaw , A. Vaidyanathan , N. Valtonen-Mattila , J. Valverde , J. Vandenbroucke , T. Van Eeden , N. van Eijndhoven , L. Van Rootselaar , J. van Santen , J. Vara , F. Varsi , M. Venugopal , M. Vereecken , S. Vergara Carrasco , S. Verpoest , D. Veske , A. Vijai , J. Villarreal , C. Walck , A. Wang , E. Warrick , 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 , M. Wolf , G. Wrede , X. W. Xu , J. P. Yañez , Y. Yao , E. Yildizci , S. Yoshida , R. Young , F. Yu , S. Yu , T. Yuan , A. Zegarelli , S. Zhang , Z. Zhang , P. Zhelnin , P. Zilberman , A. D. Hincks , X. Ma , C. Vargas , C. Hervías-Caimapo , E. S. Battistelli , K. Huffenberger , S. Naess , J. Orlowski-Scherer , B. Partridge , Cristóbal Sifón , E. J. Wollack

Constraints on GRB Jet Properties from IceCube Upper Limits: Insights from GRB 221009A and GRB 240825A

The IceCube neutrino telescope has provided upper limits on neutrino emission from gamma ray bursts. These constraints provided by the IceCube detector have been instrumental in investigating the properties of the GRB jet and its emission…

High Energy Astrophysical Phenomena · Physics 2026-02-16 Chiranjeet Pradhan , Khushboo Sharma , Abhijit Roy , Jagdish C. Joshi

High-energy neutrinos from reverse shocks in choked and successful relativistic jets

Highly relativistic jets are a key element of current gamma-ray burst models, where the jet kinetic energy is converted to radiation energy at optically thin shocks. High-energy neutrinos are also expected, from interactions of protons…

Astrophysics · Physics 2008-11-26 Shunsaku Horiuchi , Shin'ichiro Ando

Low-latency neutrino follow-up combining diverse IceCube selections

Neutrino observations are crucial for multi-messenger astronomy, but currently limited by effective area and atmospheric background. However, while other telescopes must point their limited field of view, IceCube can perform full-sky…

High Energy Astrophysical Phenomena · Physics 2025-07-14 Christoph Raab , Sam Hori , Steve Sclafani , Jessie Thwaites

IceCube search for high-energy neutrinos produced in the precursor stages of gamma-ray bursts

While gamma-ray bursts (GRBs) were once believed to be a dominant source of astrophysical neutrinos, the lack of any significant correlation between high-energy photons and neutrinos has resulted in stringent limits on their neutrino…

High Energy Astrophysical Phenomena · Physics 2019-08-20 Paul Coppin , Nick van Eijndhoven

Hard X-ray emission from blazars associated with high-energy neutrinos

Bright blazars were found to be prominent neutrino sources, and a number of IceCube events were associated with them. Evaluating high-energy photon emission of such blazars is crucial for better understanding of the processes and regions…

High Energy Astrophysical Phenomena · Physics 2024-06-04 A. V. Plavin , R. A. Burenin , Y. Y. Kovalev , A. A. Lutovinov , A. A. Starobinsky , S. V. Troitsky , E. I. Zakharov

Blazar -- IceCube neutrino association revisited

The reported association of high-energy neutrino event IceCube-170922A and blazar TXS 0506+056 has sparkled discussion about blazars as sources of cosmic neutrinos. In this paper, we use publicly released IceCube data and blazar locations…

High Energy Astrophysical Phenomena · Physics 2020-05-14 Jia-Wei Luo , Bing Zhang

The jet-cloud interacting radio galaxy PKS B2152-699. I. Structures revealed in new deep radio and X-ray observations

PKS B2152-699 has radio power characteristic of sources that dominate radio feedback. We present new deep ATCA, Chandra and optical observations, and test the feedback model. We report the first high-resolution observations of the radio…

High Energy Astrophysical Phenomena · Physics 2015-06-05 D. M. Worrall , M. Birkinshaw , A. J. Young , K. Momtahan , R. A. E. Fosbury , R. Morganti , C. N. Tadhunter , G. Verdoes Kleijn

Detection Prospects for GeV Neutrinos from Collisionally Heated Gamma-ray Bursts with IceCube/DeepCore

Jet heating via nuclear collisions may be the main mechanism for gamma-ray burst (GRB) emission. Besides producing the observed gamma-rays, collisional heating must generate 10-100 GeV neutrinos, implying a close relation between the…

High Energy Astrophysical Phenomena · Physics 2015-06-12 Imre Bartos , Andrei Beloborodov , Kevin Hurley , Szabolcs Marka

Deconstructing blazars: A different scheme for jet kinematics in flat-spectrum AGN

Recent VLBI studies of the morphology and kinematics of individual BL Lac objects (S5 1803+784, PKS 0735+178, etc.) have revealed a new paradigm for the pc-scale jet kinematics of these sources. Unlike the apparent superluminal outward…

Cosmology and Nongalactic Astrophysics · Physics 2012-01-18 Marios Karouzos , Silke Britzen , Arno Witzel , Anton J. Zensus , Andreas Eckart

The Stochastic Dissipation Model for the Steady State Neutrino and Multi-Wavelength Emission of TXS 0506+056

The blazar TXS 0506+056 has been suggested to be a potential high-energy neutrino source thanks to the observations of IceCube, which found outburst-like neutrino emissions during 2014-2015 and 2017 in the transient emission search, and a…

High Energy Astrophysical Phenomena · Physics 2025-09-19 Zhen-Jie Wang , Ruo-Yu Liu , Xiang-Yu Wang