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Journal article
Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert
Science (American Association for the Advancement of Science), v 361(6398), pp 147-151
2018
PMID: 30002248
Featured in Collection : UN Sustainable Development Goals @ Drexel
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 3.5 sigma 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.
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Details
- Title
- Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert
- Creators
- Maryon Ahrens - Oskar Klein-centrum för kosmopartikelfysik (OKC)Christian Bohm - FysikumJonathan P. Dumm - Oskar Klein-centrum för kosmopartikelfysik (OKC)Chad Finley - Oskar Klein-centrum för kosmopartikelfysik (OKC)Samuel Flis - Oskar Klein-centrum för kosmopartikelfysik (OKC)Klas Hultqvist - Oskar Klein-centrum för kosmopartikelfysik (OKC)Erin O'Sullivan - Oskar Klein-centrum för kosmopartikelfysik (OKC)Christian Walck - Oskar Klein-centrum för kosmopartikelfysik (OKC)IceCube Collaboration
- Publication Details
- Science (American Association for the Advancement of Science), v 361(6398), pp 147-151
- Publisher
- American Association for the Advancement of Science (AAAS)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000438449200038
- Scopus ID
- 2-s2.0-85049849892
- Other Identifier
- 991019168502704721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics