A time-independent search for neutrinos from galaxy clusters with IceCube
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(Published version)
Date
2022
Authors
Abbasi, R.
Ackermann, M.
Adams, J.
Aguilar, J.A.
Ahlers, M.
Ahrens, M.
Alispach, C.
Alves, A.A.
Amin, N.M.
An, R.
Editors
Keilhauer, B.
Kappes, A.
Kappes, A.
Advisors
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Conference paper
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Proceedings of Science, 2022 / Keilhauer, B., Kappes, A. (ed./s), vol.395, pp.1133-1-1133-11
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International Cosmic Ray Conference (ICRC) (12 Jul 2021 - 23 Jul 2021 : Berlin, Germany - Online)
Abstract
Clusters of galaxies — with their turbulent magnetic fields and abundant matter content — are a promising class of potential neutrino sources. Cosmic rays accelerated within the large-scale shocks, Active Galactic Nuclei (AGN), or both can be confined in galaxy clusters over cosmological timescales and produce a steady flux of neutrinos in secondary interactions. The IceCube Neutrino Observatory has detected a diffuse flux of high-energy astrophysical neutrinos. After ten years of operations, however, the origin of this flux remains largely unconstrained. In this work, we perform a stacked search for neutrinos, using a population of over one thousand galaxy clusters detected by the Planck Satellite via the Sunyaev-Zeldovich (SZ) effect up to a redshift z=1. We present the first results on the contribution of galaxy clusters to the diffuse neutrino flux and discuss the implications for various models of cosmic-ray acceleration in large-scale structures.
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© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).