Every Flare, Everywhere: An All-Sky Untriggered Search for Astrophysical Neutrino Transients Using IceCube Data
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(Published version)
Date
2022
Authors
Lucarelli, F.
Luszczak, W.
Abbasi, R.
Ackermann, M.
Adams, J.
Aguilar, J.A.
Ahlers, M.
Ahrens, M.
Alispach, C.
Alves, A.A.
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.1128-1-1128-11
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Conference Name
International Cosmic Ray Conference (ICRC) (12 Jul 2022 - 23 Jul 2022 : Berlin, Germany - Online)
Abstract
Recent results from IceCube regarding TXS 0506+056 suggest the presence of neutrino flares that are not temporally coincident with a significant corresponding gamma ray flare. Such flares are particularly difficult to identify, as their presence must be inferred from the temporal distribution of neutrino data alone. Here we present the results of using a novel method to search for all such flares across the entire neutrino sky in 10 years of IceCube data, using both Gaussian and box-shaped flare hypotheses. Unlike for past searches, that looked for only the most significant neutrino flare in the data at a given direction, here we implement an algorithm to combine information from multiple flares associated with a single source candidate. This represents the most detailed description of the neutrino sky to date, providing the location and intensity of all neutrino cluster candidates in both space and time. These results can be used to further constrain potential populations of transient neutrino sources, serving as a complement to existing time-integrated and time-dependent methods.
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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).