The Search for Neutrinos from TXS 0506+056 with the ANTARES Telescope

Albert, A.; Andre, M.; Anghinolfi, M.; Anton, G.; Ardid, M.; Aubert, J. -J.; Aublin, J.; Avgitas, T.; Baret, B.; Barrios-Marti, J.; Basa, S.; Belhorma, B.; Bertin, V.; Biagi, S.; Bormuth, R.; Boumaaza, J.; Bourret, S.; Bouwhuis, M. C.; Branzas, H.; Bruijn, R.; Brunner, J.; Busto, J.; Capone, A.; Caramete, L.; Carr, J.; Celli, S.; Chabab, M.; El Moursli, R. C.; Chiarusi, T.; Circella, M.; Coelho, J. A. B.; Coleiro, A.; Colomer, M.; Coniglione, R.; Costantini, H.; Coyle, P.; Creusot, A.; Diaz, A. F.; Deschamps, A.; Distefano, C.; Palma, I. D.; Domi, A.; Dona, R.; Donzaud, C.; Dornic, D.; Drouhin, D.; Eberl, T.; Bojaddaini, I. E.; Khayati, N. E.; Elsasser, D.; Enzenhofer, A.; Ettahiri, A.; Fassi, F.; Felis, I.; Fermani, P.; Ferrara, G.; Fusco, L.; Gay, P.; Glotin, H.; Gregoire, T.; Ruiz, R. G.; Graf, K.; Hallmann, S.; Haren, H. V.; Heijboer, A. J.; Hello, Y.; Hernandez-Rey, J. J.; Hossl, J.; Hofestadt, J.; Illuminati, G.; Jong, M. D.; Jongen, M.; Kadler, M.; Kalekin, O.; Katz, U.; Khan-Chowdhury, N. R.; Kouchner, A.; Kreter, M.; Kreykenbohm, I.; Kulikovskiy, V.; Lachaud, C.; Lahmann, R.; Lefevre, D.; Leonora, E.; Lotze, M.; Loucatos, S.; Marcelin, M.; Margiotta, A.; Marinelli, A.; Martinez-Mora, J. A.; Mele, R.; Melis, K.; Migliozzi, P.; Moussa, A.; Navas, S.; Nezri, E.; Nunez, A.; Organokov, M.; Pavalas, G. E.; Pellegrino, C.; Piattelli, P.; Popa, V.; Pradier, T.; Quinn, L.; Racca, C.; Randazzo, N.; Riccobene, G.; Sanchez-Losa, A.; Saldana, M.; Salvadori, I.; Samtleben, D. F. E.; Sanguineti, M.; Sapienza, P.; Schussler, F.; Spurio, M.; Stolarczyk, T.; Taiuti, M.; Tayalati, Y.; Trovato, A.; Vallage, B.; Elewyck, V. V.; Versari, F.; Vivolo, D.; Wilms, J.; Zaborov, D.; Zornoza, J. D.; Zuniga, J.

doi:10.3847/2041-8213/aad8c0

The results of three different searches for neutrino candidates, associated with the IceCube-170922A event or from the direction of TXS 0506+056, by the ANTARES neutrino telescope, are presented. The first search refers to the online follow-up of the IceCube alert; the second is based on the standard time-integrated method employed by the Collaboration to search for point-like neutrino sources; the third uses information from the IceCube time-dependent analysis that reported bursting activity centered on 2014 December 13, as input for an ANTARES time-dependent analysis. The online follow-up and the time-dependent analysis yield no events related to the source. The time-integrated study performed over a period from 2007 to 2017 fits 1.03 signal events, which corresponds to a p-value of 3.4% (not considering trial factors). Only for two other astrophysical objects in our candidate list has a smaller p-value been found. When considering that 107 sources have been investigated, the post-trial p-value for TXS 0506+056 corresponds to 87%.