Geometric Compatibility of IceCube TeV-PeV Neutrino Excess and its Galactic Dark Matter Origin
arXiv:1311.5864 · doi:10.1007/JHEP01(2016)161
Abstract
We perform a geometric analysis for the sky map of the IceCube TeV-PeV neutrino excess and test its compatibility with the sky map of decaying dark matter signals in our galaxy. Using both Kolmogorov-Smirnov and the likelihood-ratio tests, we have found that the observed event sky map prefers to have a combination of the galactic dark matter and a homogeneous background contributions, compared to a purely galactic dark matter origin. For the assumption that the galactic dark matter is responsible for all neutrino excess, the current data can also exclude a wide range of dark matter profiles except flatter profiles such as the isothermal one. We also consider several representative decaying dark matter spectra, which can provide a good fit to the observed spectrum at IceCube with a dark matter lifetime of around 12 orders of magnitude longer than the age of the universe.
7 pages, 9 figures
References in corpus (12)
- Observation of an anomalous positron abundance in the cosmic radiation
- Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector
- Observation of High-Energy Astrophysical Neutrinos in Three Years of IceCube Data
- Calculation of atmospheric neutrino flux using the interaction model calibrated with atmospheric muon data
- TeV-PeV Neutrinos from Low-Power Gamma-Ray Burst Jets inside Stars
- Constraints on the Galactic Halo Dark Matter from Fermi-LAT Diffuse Measurements
- Methods for point source analysis in high energy neutrino telescopes
- Are IceCube neutrinos unveiling PeV-scale decaying dark matter?
- Sub-PeV Neutrinos from TeV Unidentified Sources in the Galaxy
- Superheavy Particle Origin of IceCube PeV Neutrino Events
- Possible Interpretations of IceCube High-Energy Neutrino Events
- Reevaluation of the Prospect of Observing Neutrinos from Galactic Sources in the Light of Recent Results in Gamma Ray and Neutrino Astronomy
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