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Aartsen, Mark; Ackermann, Markus; Al Samarai, Imen; Ansseau, Isabelle; Anton, Gisela; Bagherpour, Hadis; Bay, Ryan; Beatty, James; BenZvi, Segev; Berley, David; Bernardini, Elisa; Braun, Jim; Busse, Raffaela; Chirkin, Dmitry; Cowen, Doug; Cross, Robert; Dave, Pranav; de André, Joao Pedro A. M.; Díaz-Vélez, Juan Carlos; Fahey, Sam; Friedman, Elizabeth; Fritz, Alexander; Gaisser, Tom; Ghorbani, Kevin; Grant, Darren; Griffith, Zachary; Helbing, Klaus; Hickford, Stephanie; Hignight, Joshua; Japaridze, George; Jeong, Minjin; Karle, Albrecht; Keivani, Azadeh; Kheirandish, Ali; Kittler, Thomas; Koirala, Ramesh; Kolanoski, Hermann; Koepke, Lutz; Kopper, Claudio; Koschinsky, Jan Paul; Krings, Kai; Neilson, Naoko Kurahashi; Lanfranchi, Justin; Larson, Michael; Leuermann, Martin; Lozano Mariscal, Cristian Jesús; Luenemann, Jan; Madsen, James; Mancina, Sarah; Maunu, Ryan; Miarecki, Sandy; Micallef, Jessie; Momente, Giulio; Moulai, Marjon; Nahnhauer, Rolf; Neer, Garrett; Niederhausen, Hans; Nowicki, Sarah; Peiffer, Peter; Pepper, James; Plum, Matthias; Raab, Christoph; Raedel, Leif; Rameez, Mohamed; Rea, Immacolata Carmen; Relich, Matt; Rhode, Wolfgang; Richman, Mike; Ruhe, Tim; Sandrock, Alexander; Santander, Marcos; Satalecka, Konstancja; Schumacher, Lisa; Sclanfani, Stephen; Seckel, Dave; Soedingrekso, Jan; Stachurska, Juliana; Stamatikos, Michael; Stettner, Joeran; Stuttard, Thomas; Sullivan, Greg; Tenholt, Frederik; Toennis, Christoph; Toscano, Simona; Tselengidou, Maria; Turcati, Andrea; Unger, Lisa; Vandenbroucke, Justin; Vanheule, Sander; van Santen, Jakob; Vogel, Eric; Vraeghe, Matthias; Wallace, Alexander; Wallraff, Marius; Wandkowsky, Nancy; Waza, Aatif; Wood, Joshua; Yodh, Gaurang; Yoshida, Shigeru; Yuan, Tianlu
Science (American Association for the Advancement of Science), 07/2018, Letnik: 361, Številka: 6398Journal Article
A high-energy neutrino event detected by IceCube on 22 September 2017 was coincident in direction and time with a gamma-ray flare from the blazar TXS 0506+056. Prompted by this association, we investigated 9.5 years of IceCube neutrino observations to search for excess emission at the position of the blazar. We found an excess of high-energy neutrino events, with respect to atmospheric backgrounds, at that position between September 2014 and March 2015. Allowing for time-variable flux, this constitutes 3.5σ evidence for neutrino emission from the direction of TXS 0506+056, independent of and prior to the 2017 flaring episode. This suggests that blazars are identifiable sources of the high-energy astrophysical neutrino flux.
