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T: Fachverband Teilchenphysik

T 59: Neutrino astronomy II

T 59.2: Vortrag

Mittwoch, 1. April 2020, 16:45–17:00, L-2.004

Real-time identification of transient neutrino sources — •Richard Naab for the IceCube collaboration — Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, D-15738, Zeuthen

The identification of the sources of astrophysical neutrinos is one of the main motivations behind the IceCube real-time follow-up programs. A high duty cycle and all sky coverage make the neutrino observatory at the South Pole an effective trigger for follow-up searches aiming at finding electromagnetic counterparts. Telescopes used for this usually have a limited sky coverage due to their small field of view and thus depend on trigger input.

There are two approaches to distinguish astrophysical neutrinos from atmospheric background. The first is to select single high-energy neutrinos assuming that the signal neutrino spectrum is harder compared to the background. The second is to search for neutrino events clustering in time and space. The latter approach is used by IceCube's optical follow-up programs, which aims to probe gamma-ray bursts and choked-jet supernovae as possible neutrino source candidates. In my talk I will outline the performance and prospects of improvement in sensitivity to transients, which flare on a timescale of 100 seconds.