14–24 Jul 2025
CICG - International Conference Centre - Geneva, Switzerland
Europe/Zurich timezone
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Neutrino and electromagnetic signals from tidal disruption events: bridging the theory with observations

22 Jul 2025, 17:20
15m
Room C

Room C

Talk Neutrino Astronomy & Physics NU

Speaker

Chengchao Yuan (Deutsches Elektronen-Synchrotron DESY)

Description

This presentation covers recent results from the joint analysis of neutrino and electromagnetic cascade emissions from neutrino-coincident tidal disruption events (TDEs), using both an isotropic wind model and relativistic jets. We discuss constraints from Fermi gamma-ray upper limits on the size of the radiation zone and on the maximum energies of accelerated cosmic rays, and the resulting neutrino emissions. Additionally, we explore multi-wavelength modeling of jetted TDEs with luminous X-ray afterglows, incorporating jet and wind dynamics with time-dependent energy injection. We also examine the connection between neutrinos and their multi-wavelength counterparts, highlighting implications for future multi-messenger discoveries with IceCube, IceCube-Gen2, KM3NeT, and Fermi.

Author

Chengchao Yuan (Deutsches Elektronen-Synchrotron DESY)

Co-authors

Presentation materials

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