Speakers
Description
KM3NeT is a deep-sea neutrino telescope under construction in the Mediterranean Sea and currently taking data with a partial detector configuration. It consists of of two deep-sea water-Cherenkov detectors located at two different sites, sharing the same technology but designed to address different physics goals: ARCA (offshore Italy), optimised for the detection of high-energy cosmic neutrinos in the TeV-PeV range, and ORCA (offshore France), optimised for low-energy atmospheric neutrinos in the few-GeV range. Thanks to the multi-PMT design of their optical modules, both detectors are also sensitive to MeV neutrinos emitted by core-collapse supernovae, enabling neutrino astronomy across an energy range from a few MeV to a few PeV. This contribution presents the KM3NeT real-time multi-messenger program, as part of the multi-messenger effort to study transient astrophysical phenomena through the simultaneous observation of different cosmic messengers. Indeed, given their large field of view and almost 100% duty cycle, neutrino telescopes are ideally suited to the early notification of other multi-messenger facilities when interesting neutrino candidates are detected and to perform follow-up observations of external triggers. These goals are achieved by KM3NeT through the implementation of an online analysis system that continuously performs fast real-time processing of collected data, automatic follow-ups of received alerts, and identification of neutrino candidates.