Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A

IceCube Collaboration, Fermi-LAT collaboration, MAGIC collaboration, AGILE, ASAS-SN, HAWC, H.E.S.S., INTEGRAL, Kanata, Kiso, and Subaru observing teams, Kapteyn, Liverpool telescope, Swift/NuSTAR, VERITAS, VLA/17B-403 team

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Abstract

Previous detections of individual astrophysical sources of neutrinos are limited to the Sun and the supernova 1987A, whereas the origins of the diffuse flux of high-energy cosmic neutrinos remain unidentified. On 22 September 2017, we detected a high-energy neutrino, IceCube-170922A, with an energy of e290 tera-electron volts. Its arrival direction was consistent with the location of a known g-ray blazar, TXS 0506+056, observed to be in a flaring state. An extensive multiwavelength campaign followed, ranging from radio frequencies to g-rays. These observations characterize the variability and energetics of the blazar and include the detection of TXS 0506+056 in very-high-energy g-rays. This observation of a neutrino in spatial coincidence with a g-ray-emitting blazar during an active phase suggests that blazars may be a source of high-energy neutrinos.

Original languageEnglish (US)
Article numbereaat1378
JournalScience
Volume361
Issue number6398
DOIs
StatePublished - Jul 13 2018

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neutrinos
rays
supernova 1987A
energy
blazars
arrivals
radio frequencies
astrophysics
sun
electrons

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IceCube Collaboration, Fermi-LAT collaboration, MAGIC collaboration, AGILE, ASAS-SN, HAWC, ... VLA/17B-403 team (2018). Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A. Science, 361(6398), [eaat1378]. https://doi.org/10.1126/science.aat1378
IceCube Collaboration ; Fermi-LAT collaboration ; MAGIC collaboration ; AGILE ; ASAS-SN ; HAWC ; H.E.S.S. ; INTEGRAL ; Kanata, Kiso, and Subaru observing teams ; Kapteyn ; Liverpool telescope ; Swift/NuSTAR ; VERITAS ; VLA/17B-403 team. / Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A. In: Science. 2018 ; Vol. 361, No. 6398.
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title = "Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A",
abstract = "Previous detections of individual astrophysical sources of neutrinos are limited to the Sun and the supernova 1987A, whereas the origins of the diffuse flux of high-energy cosmic neutrinos remain unidentified. On 22 September 2017, we detected a high-energy neutrino, IceCube-170922A, with an energy of e290 tera-electron volts. Its arrival direction was consistent with the location of a known g-ray blazar, TXS 0506+056, observed to be in a flaring state. An extensive multiwavelength campaign followed, ranging from radio frequencies to g-rays. These observations characterize the variability and energetics of the blazar and include the detection of TXS 0506+056 in very-high-energy g-rays. This observation of a neutrino in spatial coincidence with a g-ray-emitting blazar during an active phase suggests that blazars may be a source of high-energy neutrinos.",
author = "{IceCube Collaboration} and {Fermi-LAT collaboration} and {MAGIC collaboration} and AGILE and ASAS-SN and HAWC and H.E.S.S. and INTEGRAL and {Kanata, Kiso, and Subaru observing teams} and Kapteyn and {Liverpool telescope} and Swift/NuSTAR and VERITAS and {VLA/17B-403 team} and Aartsen, {M. G.} and M. Ackermann and J. Adams and Aguilar, {J. A.} and M. Ahlers and M. Ahrens and {Al Samarai}, I. and D. Altmann and K. Andeen and T. Anderson and I. Ansseau and G. Anton and C. Arg{\"u}elles and J. Auffenberg and S. Axani and H. Bagherpour and X. Bai and Barron, {J. P.} and Barwick, {S. W.} and V. Baum and R. Bay and Beatty, {J. J.} and {Becker Tjus}, J. and Becker, {K. H.} and S. Benzvi and D. Berley and E. Bernardini and Besson, {D. Z.} and G. Binder and D. Bindig and E. Blaufuss and S. Blot and C. Bohm and M. B{\"o}rner and F. Bos and S. B{\"o}ser and O. Botner and E. Bourbeau and J. Bourbeau and F. Bradascio and J. Braun and M. Brenzke and Bretz, {H. P.} and S. Bron and J. Brostean-Kaiser and A. Burgman and Busse, {R. S.} and T. Carver and E. Cheung and D. Chirkin",
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IceCube Collaboration, Fermi-LAT collaboration, MAGIC collaboration, AGILE, ASAS-SN, HAWC, H.E.S.S., INTEGRAL, Kanata, Kiso, and Subaru observing teams, Kapteyn, Liverpool telescope, Swift/NuSTAR, VERITAS & VLA/17B-403 team 2018, 'Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A', Science, vol. 361, no. 6398, eaat1378. https://doi.org/10.1126/science.aat1378

Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A. / IceCube Collaboration; Fermi-LAT collaboration; MAGIC collaboration; AGILE; ASAS-SN; HAWC; H.E.S.S.; INTEGRAL; Kanata, Kiso, and Subaru observing teams; Kapteyn; Liverpool telescope; Swift/NuSTAR; VERITAS; VLA/17B-403 team.

In: Science, Vol. 361, No. 6398, eaat1378, 13.07.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A

AU - IceCube Collaboration

AU - Fermi-LAT collaboration

AU - MAGIC collaboration

AU - AGILE

AU - ASAS-SN

AU - HAWC

AU - H.E.S.S.

AU - INTEGRAL

AU - Kanata, Kiso, and Subaru observing teams

AU - Kapteyn

AU - Liverpool telescope

AU - Swift/NuSTAR

AU - VERITAS

AU - VLA/17B-403 team

AU - Aartsen, M. G.

AU - Ackermann, M.

AU - Adams, J.

AU - Aguilar, J. A.

AU - Ahlers, M.

AU - Ahrens, M.

AU - Al Samarai, I.

AU - Altmann, D.

AU - Andeen, K.

AU - Anderson, T.

AU - Ansseau, I.

AU - Anton, G.

AU - Argüelles, C.

AU - Auffenberg, J.

AU - Axani, S.

AU - Bagherpour, H.

AU - Bai, X.

AU - Barron, J. P.

AU - Barwick, S. W.

AU - Baum, V.

AU - Bay, R.

AU - Beatty, J. J.

AU - Becker Tjus, J.

AU - Becker, K. H.

AU - Benzvi, S.

AU - Berley, D.

AU - Bernardini, E.

AU - Besson, D. Z.

AU - Binder, G.

AU - Bindig, D.

AU - Blaufuss, E.

AU - Blot, S.

AU - Bohm, C.

AU - Börner, M.

AU - Bos, F.

AU - Böser, S.

AU - Botner, O.

AU - Bourbeau, E.

AU - Bourbeau, J.

AU - Bradascio, F.

AU - Braun, J.

AU - Brenzke, M.

AU - Bretz, H. P.

AU - Bron, S.

AU - Brostean-Kaiser, J.

AU - Burgman, A.

AU - Busse, R. S.

AU - Carver, T.

AU - Cheung, E.

AU - Chirkin, D.

PY - 2018/7/13

Y1 - 2018/7/13

N2 - Previous detections of individual astrophysical sources of neutrinos are limited to the Sun and the supernova 1987A, whereas the origins of the diffuse flux of high-energy cosmic neutrinos remain unidentified. On 22 September 2017, we detected a high-energy neutrino, IceCube-170922A, with an energy of e290 tera-electron volts. Its arrival direction was consistent with the location of a known g-ray blazar, TXS 0506+056, observed to be in a flaring state. An extensive multiwavelength campaign followed, ranging from radio frequencies to g-rays. These observations characterize the variability and energetics of the blazar and include the detection of TXS 0506+056 in very-high-energy g-rays. This observation of a neutrino in spatial coincidence with a g-ray-emitting blazar during an active phase suggests that blazars may be a source of high-energy neutrinos.

AB - Previous detections of individual astrophysical sources of neutrinos are limited to the Sun and the supernova 1987A, whereas the origins of the diffuse flux of high-energy cosmic neutrinos remain unidentified. On 22 September 2017, we detected a high-energy neutrino, IceCube-170922A, with an energy of e290 tera-electron volts. Its arrival direction was consistent with the location of a known g-ray blazar, TXS 0506+056, observed to be in a flaring state. An extensive multiwavelength campaign followed, ranging from radio frequencies to g-rays. These observations characterize the variability and energetics of the blazar and include the detection of TXS 0506+056 in very-high-energy g-rays. This observation of a neutrino in spatial coincidence with a g-ray-emitting blazar during an active phase suggests that blazars may be a source of high-energy neutrinos.

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U2 - 10.1126/science.aat1378

DO - 10.1126/science.aat1378

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IceCube Collaboration, Fermi-LAT collaboration, MAGIC collaboration, AGILE, ASAS-SN, HAWC et al. Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A. Science. 2018 Jul 13;361(6398). eaat1378. https://doi.org/10.1126/science.aat1378