Orateur
Description
Fast Radio Bursts (FRBs) are millisecond-long electromagnetic emissions originating from extra-galactic sources, characterized by unprecedented energies in the radio domain. Their properties are consistent with the hypothesis of turbulent, highly magnetized, and dense media surrounding their sources. These sources are strong candidates for multi-messenger emissions, partly due to the huge energy involved in the bursts. In light of the multi-wavelength observation of the galactic magnetar SGR 1935+2154, which was associated with both a Hard X-ray Burst (XRB) and the FRB 20200428A detected in coincidence, several new models have emerged. Magnetars – young neutron stars with extremely intense magnetic fields – appear to be the most promising objects for FRB emissions. The emission of high-energy neutrinos from magnetars with similar characteristics as SGR 1935+2154 has been investigated, suggesting a potential multi-messenger emission involving a neutrino counterpart alongside the FRB. On this basis, an analysis has been conducted to investigate a neutrino-FRB correlation in the data from the KM3 Neutrino Telescope (KM3NeT) and the radio bursts published online. This analysis covers the wide KM3NeT energy range from GeV to PeV. This work presents the properties of FRB sources and examines neutrino emission models from magnetars in relation with FRB models. Finally, the results of the correlation search conducted in KM3NeT with around 900 days of neutrino data and 250 FRBs is provided, setting a limit on the neutrino fluxes for each FRB source.
| Affiliation | Subatech/Nantes |
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