A Search for Neutrino Emission from the Fermi Bubbles with the ANTARES Telescope

TL;DR

This study used the ANTARES neutrino telescope to search for neutrino emissions from the Fermi bubbles, setting upper limits on neutrino fluxes due to no significant detection.

Contribution

First to analyze ANTARES data for neutrino emission from the Fermi bubbles and establish flux upper limits based on observational data.

Findings

No significant neutrino excess detected

Upper limits set on neutrino flux in TeV range

Constraints on hadronic models of Fermi bubbles

Abstract

Analysis of the Fermi-LAT data has revealed two extended structures above and below the Galactic Centre emitting gamma rays with a hard spectrum, the so-called Fermi bubbles. Hadronic models attempting to explain the origin of the Fermi bubbles predict the emission of high-energy neutrinos and gamma rays with similar fluxes. The ANTARES detector, a neutrino telescope located in the Mediterranean Sea, has a good visibility to the Fermi bubble regions. Using data collected from 2008 to 2011 no statistically significant excess of events is observed and therefore upper limits on the neutrino flux in TeV range from the Fermi bubbles are derived for various assumed energy cutoffs of the source.