Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/106162
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Type: Journal article
Title: All-sky search for time-integrated neutrino emission from astrophysical sourceswith 7 yr of IceCube Data
Author: Aartsen, M.
Abraham, K.
Ackermann, M.
Adams, J.
Aguilar, J.
Ahlers, M.
Ahrens, M.
Altmann, D.
Andeen, K.
Anderson, T.
Ansseau, I.
Anton, G.
Archinger, M.
Argüelles, C.
Auffenberg, J.
Axani, S.
Bai, X.
Barwick, S.
Baum, V.
Bay, R.
et al.
Citation: The Astrophysical Journal: an international review of astronomy and astronomical physics, 2017; 835(2):151-1-151-15
Publisher: IOP Publishing
Issue Date: 2017
ISSN: 0004-637X
1538-4357
Statement of
Responsibility: 
M. G. Aartsen ... G. C. Hill ... S. Robertson ... A. Wallace … B. J. Whelan ... et al. (IceCube Collaboration)
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 belowEn2df dEn = 10⁻¹²TeV cm⁻²s⁻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.
Keywords: astroparticle physics – galaxies: active – neutrinos
Rights: © 2017. The American Astronomical Society. All rights reserved.
DOI: 10.3847/1538-4357/835/2/151
Grant ID: ARC
Published version: http://dx.doi.org/10.3847/1538-4357/835/2/151
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