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https://hdl.handle.net/2440/117727
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Type: | Journal article |
Title: | Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert |
Author: | Aartsen, M.G. Ackermann, M. Adams, J. Aguilar, J.A. Ahlers, M. Ahrens, M. Al Samarai, I. Altmann, D. Andeen, K. Anderson, T. Ansseau, I. Anton, G. Arguelles, C. Arsioli, B. Auffenberg, J. Axani, S. Bagherpour, H. Bai, X. Barron, J.P. Barwick, S.W. et al. |
Citation: | Science, 2018; 361(6398):147-151 |
Publisher: | American Association for the Advancement of Science |
Issue Date: | 2018 |
ISSN: | 0036-8075 1095-9203 |
Statement of Responsibility: | M.G. Aartsen … G.C. Hill .. A. Kyriacou … S. Robertson … A. Wallace … B.J. Whelan … [et al.] (The IceCube Collaboration) |
Abstract: | 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. |
Keywords: | IceCube Collaboration |
Rights: | © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. http://www.sciencemag.org/about/science-licenses-journal-article-reuseThis is an article distributed under the terms of the Science Journals Default License. |
DOI: | 10.1126/science.aat2890 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1126/science.aat2890 |
Appears in Collections: | Aurora harvest 8 Physics publications |
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