Speaker
Description
The Galactic Centre is a complex environment. It hosts many compact objects and the most massive clouds of molecular gas in our Galaxy. Neutral and charged pions are produced when cosmic rays from energetic sources collide with particles inside the molecular clouds. When the pions decay, the clouds glow in gamma-rays and neutrinos. Gamma-rays could be from other sources, but neutrinos are almost exclusively produced in hadronic interactions and are unabsorbed in propagations. They are thus unambiguous markers of hadronic processes. Observing these neutrinos will allow us to answer two of the mysteries about the Galactic Centre. One unresolved puzzle is the origin of PeV cosmic rays, and millisecond pulsars are considered one of the candidates. Another puzzle is the low star-formation rate of the molecular clouds at the Galactic Centre. In light of the development of the next generation of telescopes, such as KM3NeT, Baikal-GVD, and P-ONE, neutrinos will become a new tool for the study of the above problems. In this talk, we demonstrate how we can use neutrino observations to constrain the properties of Galactic Centre millisecond pulsars, as well as to trace the mass of the molecular gas.
