Multiwavelength follow-up of a rare IceCube neutrino multiplet
- Author(s): Aartsen, MG
- Ackermann, M
- Adams, J
- Aguilar, JA
- Ahlers, M
- Ahrens, M
- Al Samarai, I
- Altmann, D
- Andeen, K
- Anderson, T
- Ansseau, I
- Anton, G
- Archinger, M
- Argüelles, C
- Auffenberg, J
- Axani, S
- Bai, X
- Barwick, SW
- Baum, V
- Bay, R
- Beatty, JJ
- Tjus, JB
- Becker, KH
- Benzvi, S
- Berley, D
- Bernardini, E
- Bernhard, A
- Besson, DZ
- Binder, G
- Bindig, D
- Blaufuss, E
- Blot, S
- Bohm, C
- Börner, M
- Bos, F
- Bose, D
- Böser, S
- Botner, O
- Braun, J
- Brayeur, L
- Bretz, HP
- Bron, S
- Burgman, A
- Carver, T
- Casier, M
- Cheung, E
- Chirkin, D
- Christov, A
- Clark, K
- Classen, L
- Coenders, S
- Collin, GH
- Conrad, JM
- Cowen, DF
- Cross, R
- Day, M
- De André, JPAM
- De Clercq, C
- Del Pino Rosendo, E
- Dembinski, H
- De Ridder, S
- Desiati, P
- De Vries, KD
- De Wasseige, G
- De With, M
- Deyoung, T
- Di Lorenzo, V
- Dujmovic, H
- Dumm, JP
- Dunkman, M
- Eberhardt, B
- Ehrhardt, T
- Eichmann, B
- Eller, P
- Euler, S
- Evenson, PA
- Fahey, S
- Fazely, AR
- Feintzeig, J
- Felde, J
- Filimonov, K
- Finley, C
- Flis, S
- Fösig, CC
- Franckowiak, A
- Friedman, E
- Fuchs, T
- Gaisser, TK
- Gallagher, J
- Gerhardt, L
- Ghorbani, K
- Giang, W
- Gladstone, L
- Glauch, T
- Glüsenkamp, T
- Goldschmidt, A
- et al.
Published Web Location
https://doi.org/10.1051/0004-6361/201730620Abstract
© ESO, 2017. On February 17, 2016, the IceCube real-time neutrino search identified, for the first time, three muon neutrino candidates arriving within 100 s of one another, consistent with coming from the same point in the sky. Such a triplet is expected once every 13.7 years as a random coincidence of background events. However, considering the lifetime of the follow-up program the probability of detecting at least one triplet from atmospheric background is 32%. Follow-up observatories were notified in order to search for an electromagnetic counterpart. Observations were obtained by Swift's X-ray telescope, by ASAS-SN, LCO and MASTER at optical wavelengths, and by VERITAS in the very-high-energy gamma-ray regime. Moreover, the Swift BAT serendipitously observed the location 100 s after the first neutrino was detected, and data from the Fermi LAT and HAWC observatory were analyzed. We present details of the neutrino triplet and the follow-up observations. No likely electromagnetic counterpart was detected, and we discuss the implications of these constraints on candidate neutrino sources such as gamma-ray bursts, core-collapse supernovae and active galactic nucleus flares. This study illustrates the potential of and challenges for future follow-up campaigns.
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