The Korean Physical Society 06130 22, Teheran-ro 7-gil, Gangnam-gu, Seoul, Republic of Korea 610 Representation : Tae Won NOH TEL: 02-556-4737 FAX: 02-554-1643 E-mail : webmaster@kps.or.kr Copyright(C) KPS, All rights reserved.
30 May 2022 to 4 June 2022
Virtual Seoul
Asia/Seoul timezone

Constraints on the neutrino emission from the Galactic Ridge with the ANTARES detector

Not scheduled
5m
Virtual Seoul

Virtual Seoul

Poster Astrophysical neutrinos Poster

Description

Interactions of cosmic ray protons, atomic nuclei and electrons in the interstellar medium in the inner part of the Milky Way produce a gamma-ray flux from the Galactic Ridge (|l|<30°, |b|<2°). If the gamma-ray emission is dominated by proton and nucleus interactions, a comparable neutrino flux is expected from the same region.
Data collected by the ANTARES detector from 2007 to 2020 have been analysed to constrain the neutrino emission from the Galactic Ridge in the TeV energy range. Both track- and shower-like events have been considered and an ON-OFF analysis has been performed to estimate a possible excess of events in the ON region with respect to the expected background originating from atmospheric neutrinos. The results of the fit in terms of the neutrino flux normalisation and spectral index will be presented and compared to the Fermi-LAT measurements in the context of the model of common origin of gamma-rays and neutrinos from proton and nuclei interactions in the inner Galactic Disk.

Collaboration ANTARES

Primary authors

Dr Julien Aublin (Astroparticle and Cosmology laboratory Paris) Dr Federico Flippini Mr Mathieu Lamoureux (Astroparticle and Cosmology laboratory Paris) Andrii Neronov (Astroparticle and Cosmology Laboratory Paris) Denis Savchenko (Astroparticle and Cosmology laboratory Paris)

Presentation Materials

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