Würzburg 2018 – scientific programme

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T: Fachverband Teilchenphysik

T 24: Neutrinoastronomie II

T 24.10: Talk

Tuesday, March 20, 2018, 18:45–19:00, Philo-HS1

Constraints on the neutrino emission of short-lived transient sources from IceCube's follow-up program — •Nora Linn Strotjohann for the IceCube collaboration — Desy Zeuthen

IceCube's optical and X-ray follow-up program searches for short-lived transient neutrino sources by looking for several events that are consistent with a single source origin. Since the start of the program in 2008 only one neutrino triplet, i.e. three events within 100s and within 3.5 degrees of each other, was detected. This rate is consistent with the expected rate of chance coincidences of atmospheric events.

The lack of more such neutrino multiplets allows us to constrain the neutrino emission of short-lived transient neutrino source populations like gamma-ray bursts or choked-jet supernovae. This analysis does not rely on the detection of the sources via their electromagnetic emission which means that the limits also apply to photon-dark or unknown sources.