Correlation of IceCube neutrinos with 2MRS
August 08, 2019
January 28, 2020
The distribution of galaxies within the local (z < 0.1) universe is characterized by large scale anisotropic features. Observatories searching for the production of astrophysical neutrinos can take advantage of these to establish possible directional correlation between astrophysical neutrinos and galaxy distribution. Here, we present the results of an analysis of the correlation between IceCube neutrinos and galaxy density, as observed by the 2MASS Redshift Survey (2MRS), testing the hypothesis that neutrinos are produced in interactions between diffuse Ultra-High Energy Cosmic Rays (UHECR) and the matter distribution within galaxies. No such correlation was found and limits are placed on neutrino production from diffuse UHECR interacting with local matter.
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