Würzburg 2018 – wissenschaftliches Programm
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EP: Fachverband Extraterrestrische Physik
EP 12: Astrophysics I - High-energy and Relativistic Astrophysics
EP 12.1: Vortrag
Donnerstag, 22. März 2018, 17:30–17:45, BSZ - Pabel HS
On the Detection Potential of Short Blazar Flares for Current Neutrino Telescopes — •Michael Kreter1, Matthias Kadler1, Felicia Krauss2, Karl Mannheim1, and Joern Wilms3 — 1Lehrstuhl für Astronomie, Universität Würzburg, Emil-Fischer-Strasse 31, 97074 Würzburg, Germany — 2Anton Pannekoek Institute for Astronomy, University of Amsterdam, Postbus 94249, 1090 GE Amsterdam, Netherlands — 3Dr. Remeis Sternwarte & ECAP,Universität Erlangen-Nürnberg, Sternwartstrasse 7, 96049 Bamberg, Germany
High-confidence associations of individual neutrinos with individual blazars could be achieved via spatially and temporally coincident detections of high-energy neutrinos (>100 TeV) from short blazar flares. It has been suggested that the current IceCube neutrino detector is sufficiently sensitive to detect neutrinos from such short flares. We test this prediction by calculating the expected number of neutrinos produced in the IceCube detector for the 50 brightest short blazar flares in the sky. We find that the fluence of most individual blazar flares is far too small to yield a substantial Poisson probability for the detection of one or more neutrinos with IceCube. The integrated fluence of the 50 highest-ranked flares yields only about 50% of Poisson probability for the detection of a single high-energy neutrino. For the most spectacular short blazar flares, however, Poisson probabilities of up to 2% are calculated, so that the possibility of associated neutrino detections in future data unblindings of IceCube and KM3NeT seems reasonable.