Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 18: Neutrino Astronomy 1

T 18.2: Vortrag

Montag, 21. März 2022, 16:30–16:45, T-H31

High-Energy Neutrinos From Accretion Flares — •Jannis Necker for the IceCube collaboration — DESY, Zeuthen, Deutschland

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. Recent observations suggest a contribution to this diffuse flux from accretion flares, radiation outbursts from Super-Massive Black Holes that accrete at an enhanced rate. In this contribution I will present results from a stacking analysis looking for IceCube neutrinos from these accretion flares.