Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert

Icecube Collaboration

doi:10.1126/science.aat2890

Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert

Icecube Collaboration

Physics and Astronomy

University of Canterbury
German Electron Synchrotron
Université libre de Bruxelles
University of Copenhagen
Oskar Klein Centre
University of Geneva
Friedrich-Alexander University Erlangen-Nürnberg
Marquette University
Pennsylvania State University
Massachusetts Institute of Technology
Universidade Estadual de Campinas
RWTH Aachen University
South Dakota School of Mines & Technology
University of Alberta
University of California at Irvine
Johannes Gutenberg University Mainz
University of California at Berkeley
Ohio State University
Ruhr University Bochum
University of Wuppertal
University of Rochester
University of Maryland, College Park
University of Kansas
Lawrence Berkeley National Laboratory
TU Dortmund University
Uppsala University
University of Wisconsin-Madison

Research output: Contribution to journal › Article › peer-review

1039 Scopus citations

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 3.5s 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.

Original language	English
Pages (from-to)	147-151
Number of pages	5
Journal	Science
Volume	361
Issue number	6398
DOIs	https://doi.org/10.1126/science.aat2890
State	Published - Jul 13 2018

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10.1126/science.aat2890

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@article{bc368f9e8d7c49a5a9355fdd43156629,

title = "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 3.5s 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.",

author = "\{Icecube Collaboration\} 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 B. Arsioli 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 J. Kiryluk",

year = "2018",

month = jul,

day = "13",

doi = "10.1126/science.aat2890",

language = "English",

volume = "361",

pages = "147--151",

journal = "Science",

issn = "0036-8075",

number = "6398",

}

TY - JOUR

T1 - Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert

AU - Icecube Collaboration

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 - Arsioli, B.

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 - Kiryluk, J.

PY - 2018/7/13

Y1 - 2018/7/13

N2 - 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 3.5s 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.

AB - 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 3.5s 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.

UR - https://www.scopus.com/pages/publications/85049849892

U2 - 10.1126/science.aat2890

DO - 10.1126/science.aat2890

M3 - Article

C2 - 30002248

AN - SCOPUS:85049849892

SN - 0036-8075

VL - 361

SP - 147

EP - 151

JO - Science

JF - Science

IS - 6398

ER -

Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert

Abstract

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