Search for a neutrino emission from the Fermi Bubbles with the ANTARES telescope

TL;DR

This study used the ANTARES neutrino telescope to search for neutrinos from the Fermi Bubbles, but found no evidence, leading to upper limits on neutrino fluxes and contributing to understanding cosmic neutrino sources.

Contribution

First analysis to search for neutrinos from the Fermi Bubbles using ANTARES data, setting upper limits on neutrino fluxes from this source.

Findings

No neutrino signal detected from Fermi Bubbles.

Upper limits established for neutrino fluxes.

Supports constraints on hadronic models of gamma-ray emission.

Abstract

ANTARES is the largest neutrino telescope in the Northern hemisphere. The main scientific goal is the search for cosmic neutrinos coming from galactic and extragalactic sources. Neutrinos are detected through the Cherenkov light emitted along the path of charged particles produced in neutrino interactions inside or in the vicinity of the detector. ANTARES is sensitive to all flavors though it is optimized for muon neutrinos. The detector has been taking data in its complete configuration since May 2008. Using data collected in the period 2007-2010, the first analysis devoted to the search for neutrinos from the Fermi Bubbles is presented. The Fermi Bubbles are characterized by gamma emission with a E^{-2} spectrum and a relatively constant intensity all over the space. According to a proposed hadronic mechanism for this gamma-ray emission, the Fermi Bubbles can be a source of high-energy neutrinos. No evidence of a neutrino signal is found in the ANTARES data. Therefore upper limits are calculated for neutrino fluxes with different energy cutoffs.