Status of the Real-time Multi-messenger Program of KM3NeT

• Main Authors: Lincetto, M., Dornic, D., Huang, F., Schnabel, J.
• Other Authors: Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), J. E. Ruiz, F. Pierfederici, and P. Teuben, eds.
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2020
• Subjects: neutrino: supernova; neutrino: atmosphere; neutrino: burst; KM3NeT; observatory; network; GeV; [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]; Orca
• Online Access: https://hal.science/hal-03830428; https://hal.science/hal-03830428/document; https://hal.science/hal-03830428/file/Status%20of%20the%20Real-time%20Multi-messenger%20Program%20of%20KM3NeT.pdf

International audience The KM3NeT research infrastructure in the Mediterranean Sea is a multi-purpose cubic-kilometre neutrino observatory hosting two detectors. ORCA is optimized to study atmospheric neutrinos between 1 and 100 GeV, while ARCA is primarily aimed at detecting cosmic neutrinos between several tens of GeV and PeV range. The real-time multi-messenger program of KM3NeT is oriented towards the study of astrophysical transients. It enables the bidirectional exchange of alerts for follow-up analyses as well as joint sub-threshold searches with a network of partner observatories. The prompt and open dissemination of the results to the astrophysical community is a key objective of the program. This contribution outlines the first developments of the KM3NeT multi-messenger infrastructure, covering two real-time analysis scenarios: the search for core-collapse supernova neutrino bursts and the search for astrophysical high-energy neutrinos. The data processing pipelines, the alert distribution systems and the perspectives for the KM3NeT integration in the global multi-messenger networks are described.