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Limits on point-like sources of ultra-high-energy neutrinos with the Pierre Auger Observatory
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arxiv 1906.07419 v2 pith:QNTKUJJJ submitted 2019-06-18 astro-ph.HE
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abstract
With the Surface Detector array (SD) of the Pierre Auger Observatory we can detect neutrinos with energy between $10^{17}\,$eV and $10^{20}\,$eV from point-like sources across the sky, from close to the Southern Celestial Pole up to $60^\circ$ in declination, with peak sensitivities at declinations around $\sim -53^\circ$ and $\sim+55^\circ$, and an unmatched sensitivity for arrival directions in the Northern hemisphere. A search has been performed for highly-inclined air showers induced by neutrinos of all flavours with no candidate events found in data taken between 1 Jan 2004 and 31 Aug 2018. Upper limits on the neutrino flux from point-like steady sources have been derived as a function of source declination. An unrivaled sensitivity is achieved in searches for transient sources with emission lasting over an hour or less, if they occur within the field of view corresponding to the zenith angle range between $60^\circ$ and $~95^\circ$ where the SD of the Pierre Auger Observatory is most sensitive to neutrinos.
Forward citations
Cited by 2 Pith papers
Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record
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The KM3NeT 220 PeV event: a neutrino messenger from the grand unification scale?
hep-ph 2026-07 unverdicted novelty 6.5 of 10
The KM3NeT 220 PeV event is read as X o u ū decay of a flavored onium relic at m_X=4.4e8 GeV, with lifetime fixing a mediator near 10^16 GeV under a single Higgs insertion.
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Search for Ultra-High-Energy Neutrinos at the Pierre Auger Observatory: New Triggers, Methods, and Constraints
astro-ph.HE 2025-07 conditional novelty 5.0 of 10
No ultra-high-energy neutrino candidates were found in Auger data from 2014 through 2021, tightening 90% confidence limits on diffuse and point-source fluxes in the 60-75 degree zenith band.
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