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Peer-reviewed

High-energy Neutrino and Gamma-Ray Emission from Tidal Disruption Events

Kohta Murase, Shigeo S. Kimura, B. Theodore Zhang, Foteini Oikonomou, Maria Petropoulou

The Astrophysical Journal · 2020

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Summary

Abstract Tidal disruption events (TDE) have been considered as cosmic-ray and neutrino sources for a decade. We suggest two classes of new scenarios for high-energy multi-messenger emission from TDEs that do not have to harbor powerful jets. First, we investigate high-energy neutrino and gamma-ray production in the core region of a supermassive black hole. In particular, we show that ∼1–100 TeV neutrinos and MeV gamma rays can efficiently be produced in hot coronae around an accretion disk. We also study the consequences of particle acceleration in radiatively inefficient accretion flows (RIAFs). Second, we consider possible cosmic-ray acceleration by sub-relativistic disk-driven winds or interactions between tidal streams, and show that subsequent hadronuclear and photohadronic interactio

Source type
Peer-reviewed study
DOI
10.3847/1538-4357/abb3c0
Catalogue ID
SNmoic25z7-n9dsmx
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