Speaker
Description
One of the key open questions of high energy astrophysics is the nature of astrophysical particle accelerators. Neutrinos may hold the key to solving this mystery: if protons are being accelerated in addition to electrons in the source, neutrinos will be produced alongside their electromagnetic radiation, providing a clear signature for the type of particles involved. Using signatures from multiple messenger particles, including neutrinos, gamma-rays, and gravitational waves, can provide meaningful constraints on particle acceleration in those sources. In 2013, the IceCube Neutrino Observatory first announced the detection of a TeV - PeV flux of astrophysical neutrinos, although the source of the vast majority of those neutrinos remains unknown. In this talk, I will discuss an analysis for IceCube neutrinos from extreme BL Lac objects, where recent modeling efforts of the full electromagnetic spectrum can be used to provide a neutrino expectation for the search. Results from the neutrino search will provide important constraints to understanding particle acceleration mechanisms in these sources. I will also give an outlook for a new Canadian-led neutrino detector, the Pacific Ocean Neutrino Experiment (P-ONE), which will be deploying its first line soon and will have good sensitivity to Galactic neutrino sources.