uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Time-Integrated Neutrino Source Searches with 10 Years of IceCube Data
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.ORCID iD: 0000-0003-1276-676x
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Show others and affiliations
Number of Authors: 3622020 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 124, no 5, article id 051103Article in journal (Refereed) Published
Abstract [en]

This Letter presents the results from pointlike neutrino source searches using ten years of IceCube data collected between April 6, 2008 and July 10, 2018. We evaluate the significance of an astrophysical signal from a pointlike source looking for an excess of clustered neutrino events with energies typically above similar to 1 TeV among the background of atmospheric muons and neutrinos. We perform a full-sky scan, a search within a selected source catalog, a catalog population study, and three stacked Galactic catalog searches. The most significant point in the northern hemisphere from scanning the sky is coincident with the Seyfert II galaxy NGC 1068, which was included in the source catalog search. The excess at the coordinates of NGC 1068 is inconsistent with background expectations at the level of 2.9 sigma after accounting for statistical trials from the entire catalog. The combination of this result along with excesses observed at the coordinates of three other sources, including TXS 0506 + 056, suggests that, collectively, correlations with sources in the northern catalog are inconsistent with background at 3.3 sigma significance. The southern catalog is consistent with background. These results, all based on searches for a cumulative neutrino signal integrated over the 10 years of available data, motivate further study of these and similar sources, including time-dependent analyses, multimessenger correlations, and the possibility of stronger evidence with coming upgrades to the detector.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2020. Vol. 124, no 5, article id 051103
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-406734DOI: 10.1103/PhysRevLett.124.051103ISI: 000511450000004PubMedID: 32083934OAI: oai:DiVA.org:uu-406734DiVA, id: diva2:1414309
Funder
Swedish Research CouncilSwedish National Infrastructure for Computing (SNIC)Knut and Alice Wallenberg FoundationSwedish Polar Research Secretariat
Note

For complete list of authors see http://dx.doi.org/10.1103/PhysRevLett.124.051103

Available from: 2020-03-12 Created: 2020-03-12 Last updated: 2020-03-12Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMed

Authority records BETA

Botner, OlgaBurgman, AlexanderHallgren, AllanPérez de los Heros, CarlosUnger, Elisabeth

Search in DiVA

By author/editor
Botner, OlgaBurgman, AlexanderHallgren, AllanPérez de los Heros, CarlosUnger, Elisabeth
By organisation
High Energy Physics
In the same journal
Physical Review Letters
Subatomic Physics

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf