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High-Energy Neutrinos and Gamma-Rays from Non-Relativistic Shock-Powered Transients by Fang, Ke; Metzger, Brian D.; Vurm, Indrek; Aydi, Elias; Chomiuk, Laura is a scholarly article available to read on EtoBox.

What is High-Energy Neutrinos and Gamma-Rays from Non-Relativistic Shock-Powered Transients about?

Shock interaction has been argued to play a role in powering a range of optical transients, including supernovae (particularly the superluminous class), classical novae, stellar mergers, tidal disruption events, and fast blue optical transients. These same shocks can accelerate relativistic ions, generating high-energy neutrino and gamma-ray emission via hadronic pion production. The recent discovery of time-correlated optical and gamma-ray emission in classical novae has revealed the important role of radiative shocks in powering these events, enabling an unprecedented view of the properties of ion acceleration, including its efficiency and energy spectrum, under similar physical conditions to shocks in extragalactic transients. Here we introduce a model for connecting the radiated optical fluence of non-relativistic transients to their maximal neutrino and gamma-ray fluence. We apply this technique to a wide range of extragalactic transient classes in order to place limits on their contributions to the cosmological high-energy gamma-ray and neutrino backgrounds. Based on a simple model for diffusive shock acceleration at radiative shocks, calibrated to novae, we demonstrate that

Author

Fang, Ke; Metzger, Brian D.; Vurm, Indrek; Aydi, Elias; Chomiuk, Laura

Published

2020

Language

EN