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

PIERRE AUGER COLLABORATION; C. BONIFAZI

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS

IOP PUBLISHING LTD

Lugar: Londres; Año: 2019

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 thesky, from close to the Southern Celestial Pole up to 60◦in declination, with peak sensitiv-ities at declinations around∼ −53◦and∼+55◦, and an unmatched sensitivity for arrivaldirections in the Northern hemisphere. A search has been performed for highly-inclined airshowers induced by neutrinos of all flavours with no candidate events found in data takenbetween 1 Jan 2004 and 31 Aug 2018. Upper limits on the neutrino flux from point-likesteady sources have been derived as a function of source declination. An unrivaled sensitiv-ity is achieved in searches for transient sources with emission lasting over an hour or less, ifthey occur within the field of view corresponding to the zenith angle range between 60◦and95◦where the SD of the Pierre Auger Observatory is most sensitive to neutrinos.