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

Abstract

© The Authors, some rights reserved. 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.

Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC); USDOE Office of Science (SC). High Energy Physics (HEP)
Contributing Org.:
The IceCube Collaboration; Fermi-LAT; MAGIC; AGILE; ASAS-SN; HAWC; H.E.S.S.; INTEGRAL; Kanata; Kiso; Kapteyn; Liverpool Telescope; Subaru; Swift/NuSTAR; VERITAS; VLA/17B-403 teams
OSTI Identifier:
1473983
Alternate Identifier(s):
OSTI ID: 1532330; OSTI ID: 1673364
Report Number(s):
LA-UR-18-29828
Journal ID: ISSN 0036-8075
Grant/Contract Number:  
AC02-76SF00515; AC02-05CH11231; 89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Science
Additional Journal Information:
Journal Volume: 361; Journal ID: ISSN 0036-8075
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; Atomic, Nuclear and Particle Physics; Astronomy and Astrophysics

Citation Formats

Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A. United States: N. p., 2018. Web. doi:10.1126/science.aat1378.
Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A. United States. doi:https://doi.org/10.1126/science.aat1378
Fri . "Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A". United States. doi:https://doi.org/10.1126/science.aat1378. https://www.osti.gov/servlets/purl/1473983.
@article{osti_1473983,
title = {Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A},
author = {None, None},
abstractNote = {© The Authors, some rights reserved. 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.},
doi = {10.1126/science.aat1378},
journal = {Science},
number = ,
volume = 361,
place = {United States},
year = {2018},
month = {7}
}

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    • DOI: 10.1088/0067-0049/194/2/29

    The All-Sky Automated Survey for Supernovae (ASAS-SN) Light Curve Server v1.0
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