Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 18: Neutrino Astronomy 1

T 18.7: Vortrag

Montag, 21. März 2022, 17:45–18:00, T-H31

Targeting luminous optical transients in the search for high-energy neutrinos — •Massimiliano Lincetto for the IceCube collaboration — Astronomisches Institut, Ruhr-Universität Bochum, Bochum, Germany

Years after the discovery of astrophysical neutrinos by the IceCube Neutrino Observatory, the dominant sources of the measured flux are still to be determined. Despite existing evidence in favour of blazars, multi-messenger considerations suggest the need of sources that do not produce high-energy gamma rays. Recent observations, following the detection of a high-energy neutrino in coincidence with a tidal disruption event, point to accreting black holes as promising candidate sources. With the rise of wide-field optical surveys such as the Zwicky Transient Facility, an unprecedented amount of optical transients is being observed on a regular basis. Among these, superluminous supernovae (SLSNe) stand out as the most luminous class. The power source behind such extreme phenomena is still unclear: magnetars, black hole accretion or CSM interaction have been proposed to explain their increased luminosity. In this contribution, the prospects for targeting SLSNe in a search for high energy neutrinos with IceCube data are presented, giving an overview of the candidate event catalogue and the proposed analysis methods.