Joint Constraints on Galactic Diffuse Neutrino Emission from the ANTARES and IceCube Neutrino Telescopes
Aug 10, 20187 pages
Published in:
- Astrophys.J.Lett. 868 (2018) 2, L20
- Published: Nov 20, 2018
e-Print:
- 1808.03531 [astro-ph.HE]
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Abstract: (IOP)
The existence of diffuse Galactic neutrino production is expected from cosmic-ray interactions with Galactic gas and radiation fields. Thus, neutrinos are a unique messenger offering the opportunity to test the products of Galactic cosmic-ray interactions up to energies of hundreds of TeV. Here we present a search for this production using ten years of Astronomy with a Neutrino Telescope and Abyss environmental RESearch (ANTARES) track and shower data, as well as seven years of IceCube track data. The data are combined into a joint likelihood test for neutrino emission according to the KRA model assuming a 5 PeV per nucleon Galactic cosmic-ray cutoff. No significant excess is found. As a consequence, the limits presented in this Letter start constraining the model parameter space for Galactic cosmic-ray production and transport.Note:
- 5 figures
- cosmic rays
- diffusion
- Galaxy: disk
- gamma rays: diffuse background
- neutrinos
- cosmic radiation: galaxy
- cosmic radiation: interaction
- cosmic radiation: spectrum
- cosmic radiation: production
- neutrino: production
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