Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert
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 th...
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| Format: | Article |
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American Association for the Advancement of Science (AAAS)
2021
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| Online adgang: | https://hdl.handle.net/1721.1/129378 |
| _version_ | 1826204276400062464 |
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| author | Arguelles Delgado, Carlos A Axani, Spencer Nicholas Collin, G. H. Conrad, Janet Marie Moulai, Marjon H. IceCube Collaboration |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Arguelles Delgado, Carlos A Axani, Spencer Nicholas Collin, G. H. Conrad, Janet Marie Moulai, Marjon H. IceCube Collaboration |
| author_sort | Arguelles Delgado, Carlos A |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T12:51:44Z |
| format | Article |
| id | mit-1721.1/129378 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T12:51:44Z |
| publishDate | 2021 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | dspace |
| spelling | mit-1721.1/1293782022-10-01T11:36:47Z Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert Arguelles Delgado, Carlos A Axani, Spencer Nicholas Collin, G. H. Conrad, Janet Marie Moulai, Marjon H. IceCube Collaboration Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Massachusetts Institute of Technology. Laboratory for Nuclear Science 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. 2021-01-11T21:25:26Z 2021-01-11T21:25:26Z 2018-07 2018-02 2019-03-15T16:29:08Z Article http://purl.org/eprint/type/JournalArticle 0036-8075 1095-9203 https://hdl.handle.net/1721.1/129378 Aartsen, Mark et al. “Neutrino Emission from the Direction of the Blazar TXS 0506+056 Prior to the IceCube-170922A Alert.” Science (July 2018): eaat2890. http://dx.doi.org/10.1126/science.aat2890 Science Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf American Association for the Advancement of Science (AAAS) arXiv |
| spellingShingle | Arguelles Delgado, Carlos A Axani, Spencer Nicholas Collin, G. H. Conrad, Janet Marie Moulai, Marjon H. IceCube Collaboration Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert |
| title | Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert |
| title_full | Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert |
| title_fullStr | Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert |
| title_full_unstemmed | Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert |
| title_short | Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert |
| title_sort | neutrino emission from the direction of the blazar txs 0506 056 prior to the icecube 170922a alert |
| url | https://hdl.handle.net/1721.1/129378 |
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