Journal article
Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert
- 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.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Accepted manuscript, pdf, 2.6MB, Terms of use)
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- Publisher copy:
- 10.1126/science.aat2890
Authors
- Publisher:
- American Association for the Advancement of Science
- Journal:
- Science More from this journal
- Volume:
- 361
- Pages:
- 147-151
- Publication date:
- 2018-07-13
- Acceptance date:
- 2018-06-15
- DOI:
- EISSN:
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1095-9203
- ISSN:
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0036-8075
- Keywords:
- Pubs id:
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pubs:892249
- UUID:
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uuid:a48ed728-7640-4b10-a918-32f16a773bde
- Local pid:
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pubs:892249
- Source identifiers:
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892249
- Deposit date:
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2018-08-04
- ARK identifier:
Terms of use
- Copyright holder:
- IceCube Collaboration
- Copyright date:
- 2018
- Notes:
- Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. This is the accepted manuscript version of the article. The final version is available online from American Association for the Advancement of Science at: https://doi.org/10.1126/science.aat2890
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