Organized by: Prof. Lu Lu

Events on Thursday, October 6th, 2016

High Energy Neutrinos from pulsar wind nebulae

Time: 3:30 pm - 4:30 pm

Place: 5280 Chamberlin Hall ***Note New Time****

Speaker: Dafne Guetta, ORT Braude College

Abstract: Several Pulsar Wind Nebulae (PWN) have been detected in the TeV band in the last years. This TeV emission can be fitted with a purely leptonic model making some assumptions on the Infrared backround around the PWN and on the magnetic field that most of the times is far from its equipartition value. We consider the possibility that part of this emission is due to an hadronic component implying the production of 1-100 TeV neutrinos. The IceCube high-energy neutrino telescope has been collecting data since 2006 and so far no neutrino event has been associated with a PWN. We use the non-detection of neutrinos to constrain the hadronic content of PWN independent of the hadronic model parameters. We also estimate the number of neutrino events expected from these sources in Antares and in KM3NeT and derive the constraints on the hadronic contribution to the TeV emission. Both Antares and KM3NeT have better potential than IceCube to detect neutrinos from PWNs as these sources are galactic.

Host: Francis Halzen

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