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All-sky Search for Transient Astrophysical Neutrino Emission with 10 Years of IceCube Cascade Events

IceCube Collaboration; Abbasi, R.; Ackermann, M.; Adams, J.; Agarwalla, S. K.; Aguilar, J. A.; Ahlers, M.; Alameddine, J. M.; Amin, N. M.; Andeen, K.; Anton, G.; Argüelles, C.; Ashida, Y.; Athanasiadou, S.; Ausborm, L.; Axani, S. N.; Bai, X.; Balagopal V., A.; Baricevic, M.; ... mehr

Abstract:

Neutrino flares in the sky are searched for in data collected by IceCube between 2011 and 2021 May. This data set
contains cascade-like events originating from charged-current electron neutrino and tau neutrino interactions and
all-flavor neutral-current interactions. IceCube’s previous all-sky searches for neutrino flares used data sets
consisting of track-like events originating from charged-current muon neutrino interactions. The cascade data set is
statistically independent of the track data sets, and while inferior in angular resolution, the low-background nature
makes it competitive and complementary to previous searches. No statistically significant flare of neutrino emission
was observed in an all-sky scan. Upper limits are calculated on neutrino flares of varying duration from 1 hr to 100
days. Furthermore, constraints on the contribution of these flares to the diffuse astrophysical neutrino flux are
presented, showing that multiple unresolved transient sources may contribute to the diffuse astrophysical
neutrino flux.


Verlagsausgabe §
DOI: 10.5445/IR/1000171431
Veröffentlicht am 07.06.2024
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 20.05.2024
Sprache Englisch
Identifikator ISSN: 0004-637X, 1538-4357
KITopen-ID: 1000171431
Erschienen in The Astrophysical Journal
Verlag Institute of Physics Publishing Ltd (IOP Publishing Ltd)
Band 967
Heft 1
Seiten Art.-Nr.: 48
Vorab online veröffentlicht am 16.05.2024
Nachgewiesen in Dimensions
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