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

M.G. Aartsen; M. Ackermann; J. Adams; J.A, Aguilar; Markus Tobias Ahlers; M. Ahrens; I.  Al samari; D. Altmann; K. Andeen; T. Anderson; I Ansseau; G. Anton; C. Arguells; J. Auffenberg; S. Axani; H. Bagherpour; X. Bai; J.P. Barron; S.W. Barwick; V. Baum; R. Bay; J.J. Beatty; J. Becker Tjus; K.H Becker; S. Benzvi; D. Berley; D. Jason Koskinen; Morten Ankersen Medici; Michael James Larson; Subir Sarkar; Thomas Simon Stuttard; M Rameez; E. Hansen; Etienne Bourbeau

doi:10.1126/science.aat1378

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

M.G. Aartsen, M. Ackermann, J. Adams, J.A, Aguilar, Markus Tobias Ahlers, M. Ahrens, I. Al samari, D. Altmann, K. Andeen, T. Anderson, I Ansseau, G. Anton, C. Arguells, J. Auffenberg, S. Axani, H. Bagherpour, X. Bai, J.P. Barron, S.W. Barwick, V. BaumR. Bay, J.J. Beatty, J. Becker Tjus, K.H Becker, S. Benzvi, D. Berley, D. Jason Koskinen, Morten Ankersen Medici, Michael James Larson, Subir Sarkar, Thomas Simon Stuttard, M Rameez, E. Hansen, Etienne Bourbeau

390 Citations (Scopus)

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 language	English
Journal	Science
Volume	361
Issue number	6398
Pages (from-to)	1-8
ISSN	0036-8075
DOIs	https://doi.org/10.1126/science.aat1378
Publication status	Published - 13 Jul 2018

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Aartsen, M. G., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M. T., Ahrens, M., Al samari, I., Altmann, D., Andeen, K., Anderson, T., Ansseau, I., Anton, G., Arguells, C., Auffenberg, J., Axani, S., Bagherpour, H., Bai, X., Barron, J. P., Barwick, S. W., ... Bourbeau, E. (2018). Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A. Science, 361(6398), 1-8. https://doi.org/10.1126/science.aat1378

Aartsen, MG, Ackermann, M, Adams, J, Aguilar, JA, Ahlers, MT, Ahrens, M, Al samari, I, Altmann, D, Andeen, K, Anderson, T, Ansseau, I, Anton, G, Arguells, C, Auffenberg, J, Axani, S, Bagherpour, H, Bai, X, Barron, JP, Barwick, SW, Baum, V, Bay, R, Beatty, JJ, Becker Tjus, J, Becker, KH, Benzvi, S, Berley, D, Koskinen, DJ, Medici, MA, Larson, MJ, Sarkar, S, Stuttard, TS, Rameez, M, Hansen, E & Bourbeau, E 2018, 'Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A', Science, vol. 361, no. 6398, pp. 1-8. https://doi.org/10.1126/science.aat1378

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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 = "M.G. Aartsen and M. Ackermann and J. Adams and J.A, Aguilar and Ahlers, {Markus Tobias} and M. Ahrens and {Al samari}, I. and D. Altmann and K. Andeen and T. Anderson and I Ansseau and G. Anton and C. Arguells and J. Auffenberg and S. Axani and H. Bagherpour and X. Bai and J.P. Barron and S.W. Barwick and V. Baum and R. Bay and J.J. Beatty and {Becker Tjus}, J. and K.H Becker and S. Benzvi and D. Berley and Koskinen, {D. Jason} and Medici, {Morten Ankersen} and Larson, {Michael James} and Subir Sarkar and Stuttard, {Thomas Simon} and M Rameez and E. Hansen and Etienne Bourbeau",

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

AU - Aartsen, M.G.

AU - Ackermann, M.

AU - Adams, J.

AU - Aguilar, J.A,

AU - Ahlers, Markus Tobias

AU - Ahrens, M.

AU - Al samari, I.

AU - Altmann, D.

AU - Andeen, K.

AU - Anderson, T.

AU - Ansseau, I

AU - Anton, G.

AU - Arguells, 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 - Koskinen, D. Jason

AU - Medici, Morten Ankersen

AU - Larson, Michael James

AU - Sarkar, Subir

AU - Stuttard, Thomas Simon

AU - Rameez, M

AU - Hansen, E.

AU - Bourbeau, Etienne

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.

U2 - 10.1126/science.aat1378

DO - 10.1126/science.aat1378

M3 - Journal article

C2 - 30002226

SN - 0036-8075

VL - 361

SP - 1

EP - 8

JO - Science

JF - Science

IS - 6398

ER -

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

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