Abstract
The Italian site for KM3NeT, located in the Ionian Sea about 100 km offshore Capo Passero, South East of Sicily, is dedicated to host (at least) two building blocks of the ARCA (Astronomy Research with Cosmics in the Abysses), comprising 230 Detection Units aiming at measurement of high-energy neutrino fluxes and discovery of their sources. The existing infrastructure is under upgrade within the framework of the IDMAR project jointly funded by Regione Siciliana and INFN. IDMAR at Capo Passero will be run in connection with the other abyssal infrastructure built by INFN 25 km offshore the town of Catania at 2100 m depth, hosting the Western Ionian Sea node of EMSO-ERIC.
Highlights
The Capo Passero site is equipped with a Main Electro Optical Cable (MEOC) capable to serve the Phase 1 of KM3NeT/ARCA, and a submarine network of Junction Boxes (JBs) and interlink electro-optical cables
A noticeable example is the discovery of abyssal vortexes in the area, revealed by data from current meters and CTD (Conductivity Temperature Depth) [2] which had been recorded by the NEMO Collaboration in multi-year observation campaigns
The operation of photo-sensors installed onboard a tower-like prototype of detection unit, allowed to study and determine the diel current-driven behaviour of bioluminescence at the Capo Passero Site [3]
Summary
The Capo Passero site is equipped with a Main Electro Optical Cable (MEOC) capable to serve the Phase 1 of KM3NeT/ARCA, and a submarine network of Junction Boxes (JBs) and interlink electro-optical cables. One of the two KM3NeT nodes (KM3NeT/ARCA) (www.km3net.org) is going to be deployed in the Western Ionian Sea, offshore the Sicilian Coast, about 100 km offshore the harbour of Capo Passero (Fig. 1).
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