Constraints to a Galactic Component of the Ice Cube cosmic neutrino flux from ANTARES

Understand

The IceCube evidence for cosmic neutrinos in the high-energy starting events (HESE) sample has inspired a large number of hypothesis on their origin, mainly due to the poor precision on the measurement of the direction of showering events.

• The fact that most of HESE are downward going suggests a possible Galactic component.
• This could be originated either by a single point-like source or to a directional excess from an extended Galactic region.
• These hypotheses are reviewed and constrained, using the present available upper limits from the ANTARES neutrino telescope.