Journal article
All-sky Search for Time-integrated Neutrino Emission from Astrophysical Sources with 7 yr of IceCube Data
The Astrophysical journal, v 835(2), p151
01 Feb 2017
Abstract
Since the recent detection of an astrophysical flux of high-energy neutrinos, the question of its origin has not yet fully been answered. Much of what is known about this flux comes from a small event sample of high neutrino purity, good energy resolution, but large angular uncertainties. In searches for point-like sources, on the other hand, the best performance is given by using large statistics and good angular reconstructions. Track-like muon events produced in neutrino interactions satisfy these requirements. We present here the results of searches for point-like sources with neutrinos using data acquired by the IceCube detector over 7 yr from 2008 to 2015. The discovery potential of the analysis in the northern sky is now significantly below E(nu)(2)d phi/dE(nu) = 10(-12) TeV cm(-2) s(-1), on average 38% lower than the sensitivity of the previously published analysis of 4 yr exposure. No significant clustering of neutrinos above background expectation was observed, and implications for prominent neutrino source candidates are discussed.
Metrics
Details
- Title
- All-sky Search for Time-integrated Neutrino Emission from Astrophysical Sources with 7 yr of IceCube Data
- Creators
- IceCube Collaboration (Collaboration)Maryon Ahrens - Stockholm UniversityChristian Bohm - FysikumJonathan P. Dumm - FysikumChad Finley - Stockholm UniversitySamuel Flis - FysikumKlas Hultqvist - Stockholm UniversityChristian Walck - Stockholm UniversityMichael Wolf - Stockholm UniversityMarcel Zoll - FysikumN Kurahashi - Drexel University, PhysicsB Relethford - Drexel UniversityM Richman - Drexel University
- Publication Details
- The Astrophysical journal, v 835(2), p151
- Publisher
- Institute of Physics (IOP)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000401145300012
- Scopus ID
- 2-s2.0-85012012745
- Other Identifier
- 991021883813604721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics