All-sky Search for Time-integrated Neutrino Emission from Astrophysical Sources with 7 yr of IceCube Data
By I. C. M. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, K. Andeen, T. Anderson and 298 more. 2016
259 citations recorded by the source corpus.
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 = 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.
View Paper: https://www.semanticscholar.org/paper/6595a782ff1521934bc9d49a1e6c76ba0ca55a0e
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- I. C. M. Aartsen
- M. Ackermann
- J. Adams
- J. Aguilar
- S. Boser
- A. Fedynitch
- M. Ahlers
- A. Keivani
Citations in the corpus
- Modelling the coincident observation of a high-energy neutrino and a bright blazar flare (2018, background): “The acceleration of nuclei during quiescence could result in weak neutrino emission, suggesting that other neutrinos from TXS0506+056 might be hidden in the IceCube data, despite the non-detection of other blazars (23).”
- The IceCube Realtime Alert System (2016, background): “The training is done separately for the northern and southern hemisphere to account for the different kinds of background encountered in each region, yielding a final event selection rate of 5 mHz, equally divided [29], and the lower panel compares different dec-lination bands within the GFU subsample.”