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Constraints on neutrino emission from nearby galaxies using the 2MASS redshift survey and IceCube
Name
1911.11809.pdf
Description
Accepted version
Size
4.27 MB
Format
Adobe PDF
Checksum (MD5)
91ef7c31a83646d801af5c83e8e434b0
Date Issued
2020
Journal
Journal of Cosmology and Astroparticle Physics
Publisher
IOP Publishing
Version
Author's final manuscript
Abstract
© 2020 IOP Publishing Ltd and Sissa Medialab. The distribution of galaxies within the local universe is characterized by anisotropic features. Observatories searching for the production sites of astrophysical neutrinos can take advantage of these features to establish directional correlations between a neutrino dataset and overdensities in the galaxy distribution in the sky. The results of two correlation searches between a seven-year time-integrated neutrino dataset from the IceCube Neutrino Observatory, and the 2MASS Redshift Survey (2MRS) catalog are presented here. The first analysis searches for neutrinos produced via interactions between diffuse intergalactic Ultra-High Energy Cosmic Rays (UHECRs) and the matter contained within galaxies. The second analysis searches for low-luminosity sources within the local universe, which would produce subthreshold multiplets in the IceCube dataset that directionally correlate with galaxy distribution. No significant correlations were observed in either analyses. Constraints are presented on the flux of neutrinos originating within the local universe through diffuse intergalactic UHECR interactions, as well as on the density of standard candle sources of neutrinos at low luminosities.
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
10.1088/1475-7516/2020/07/042
