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Joint Constraints on Galactic Diffuse Neutrino Emission from the ANTARES and IceCube Neutrino Telescopes
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.ORCID iD: 0000-0002-2084-5866
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Number of Authors: 4592018 (English)In: Astrophysical Journal Letters, ISSN 2041-8205, E-ISSN 2041-8213, Vol. 868, no 2, article id L20Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
IOP PUBLISHING LTD , 2018. Vol. 868, no 2, article id L20
Keywords [en]
cosmic rays, diffusion, Galaxy: disk, gamma rays: diffuse background, neutrinos
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-371129DOI: 10.3847/2041-8213/aaeecfISI: 000450844500004OAI: oai:DiVA.org:uu-371129DiVA, id: diva2:1272716
Funder
Swedish Research CouncilKnut and Alice Wallenberg FoundationSwedish Polar Research SecretariatSwedish National Infrastructure for Computing (SNIC)
Note

For complete list of authors see http://dx.doi.org/10.3847/2041-8213/aaeecf

Available from: 2018-12-19 Created: 2018-12-19 Last updated: 2018-12-19Bibliographically approved

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Botner, OlgaHallgren, Allande los Heros, CarlosUnger, Lisa

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