High energy neutrinos from interacting supernovae

by Dr Tetyana Pitik

Monday 19 Jun 2023, 14:30 → 15:30 Europe/Rome

Ex-ISEF/Building-Room D (GSSI)

Many observed luminous optical transients stemming from stellar explosions are believed to be fueled by the collision of ejected material with a dense circumstellar medium (CSM). This is the case of interacting supernovae, or Type IIn supernovae (SNe). The interaction of the SNe ejecta with the CSM results in a shock wave propagating in the dense circumstellar environment, which can efficiently generate thermal UV/optical emission and accelerate protons to multi-PeV energies. Such protons can undergo hadronic interactions and produce high-energy neutrinos. I will present the connection between the neutrino signal detectable at the IceCube Neutrino Observatory and the electromagnetic signal that is observable by optical surveys. Finally, I will discuss how detecting high-energy neutrinos can help constrain the large space of parameters characterizing interacting SNe.

 

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