Bonn 2020 – scientific programme

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T: Fachverband Teilchenphysik

T 59: Neutrino astronomy II

T 59.4: Talk

Wednesday, April 1, 2020, 17:15–17:30, L-2.004

Neutrinos from Choked-Jet Supernovae — •Jannis Necker for the IceCube collaboration — DESY, Zeuthen, Germany

The past two decades have seen a revolution in astronomy as for the first time it became possible to gain information about astrophysical processes not only from (low energy) photons but also from other messengers such as gravitational waves and neutrinos. The IceCube observatory is a cubic kilometre neutrino detector array in the antarctic ice, looking for astrophysical, high-energy neutrinos. The collected data reveal a diffuse flux of these neutrinos over the whole sky, indicating an extragalactic origin. A possible contribution to this diffuse flux could stem from choked-jet core collapse supernovae, which occur when the jet emanating from a massive star's collapsing core gets stuck in the star's envelope. In this talk I will present preliminary results on a search for IceCube neutrinos from choked-jet supernovae candidates. The neutrino emission is expected during the supernova explosion time, which I estimate from optical light curves recorded by the Zwicky Transient Facility (ZTF), a large field-of-view optical observatory.