Limits on point-like sources of ultra-high-energy neutrinos with the Pierre Auger Observatory

S. J. SCIUTTO; THE PIERRE AUGER COLLABORATION.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS

IOP PUBLISHING LTD

Lugar: Londres; Año: 2019 vol. 11 p. 1 - 23

1475-7516

With the Surface Detector array (SD) of the Pierre Auger Observatory we candetect neutrinos with energy between 1017eV and 1020eV from point-like sources across the sky, from close to the Southern Celestial Pole upto 60∘ in declination, with peak sensitivities at declinations around∼−53∘ and ∼+55∘, 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. Upperlimits on the neutrino flux from point-like steady sources have been derived asa function of source declination. An unrivaled sensitivity is achieved insearches for transient sources with emission lasting over an hour or less, ifthey occur within the field of view corresponding to the zenith angle rangebetween 60∘ and  95∘ where the SD of the Pierre Auger Observatoryis most sensitive to neutrinos.