Joint constraints on galactic diffuse neutrino emission from the ANTARES and IceCube neutrino telescopes
ANTARES collaboration; IceCube Collaboration; Gaggero, D.; Grasso, D.; van Haren, H. (2018). Joint constraints on galactic diffuse neutrino emission from the ANTARES and IceCube neutrino telescopes. Astrophys. J. Lett. 868: L20. https://doi.org/10.3847/2041-8213/aaeecf
In: The Astrophysical Journal: Letters. IOP Publishing: London. ISSN 2041-8205; e-ISSN 2041-8213, more
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| Author keywords |
cosmic rays; diffusion; Galaxy: disk; gamma rays: diffuse background; neutrinos |
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- ANTARES collaboration
- IceCube Collaboration
- Gaggero, D.
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| Abstract |
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${}_{\gamma }$ 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. |
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