Search for cosmic neutrino point sources and extended sources with 6-21 lines of KM3NeT/ARCA
R. Muller, A. Heijboer, Thijs van Eeden
Abstract
The identification of cosmic objects emitting high energy neutrinos provides new insights about the Universe and its active sources. The existence of cosmic neutrinos has been proven by the IceCube Neutrino Observatory, but the big question of which sources these neutrinos originate from remains largely unanswered. The KM3NeT detector for Astroparticle Research with Cosmics in the Abyss (ARCA), is currently being built in the Mediterranean Sea. It will have an instrumented volume of a cubic kilometre, and excel at identifying cosmic neutrino sources due to its unprecedented angular resolution (< 0.1 degree for muon neutrinos with E > 100 TeV). KM3NeT has a view of the sky complementary to IceCube, and is sensitive to neutrinos across a wide range of energies. Currently KM3NeT/ARCA is taking data with 21 detector lines. This contribution will present the results of point source and extended source searches with KM3NeT/ARCA with data from 2021 and 2022 taken with an evolving detector geometry.