Speaker
Description
Extreme high-energy peaked BL Lac objects (EHBLs) are an emerging class of Blazars with specific spectral properties, characterized by synchrotron emission peaking in the hard X-rays band and inverse compton emission peaking at TeV energies, possible sources energy extra-galactic neutrinos. The presence of a jet extending up to hundreds of Kiloparsec can guarantee the acceleration of CRs up to UHEs. The photopion interactions with seed synchrotron photons of such high energies are expected to produce neutrinos of several TeVs, thus nicely matching the energy window of the KM3NeT/ARCA, an underwater Cherenkov telescope dedicated to the study of cosmic neutrinos currently under construction in the Mediterranean Sea. While the detector is being steadily expanded to reach its full scientific potential, ARCA already started taking data in May 2021. I will discuss a search for astrophysical neutrino emission from Extreme Blazar with ARCA, focusing on possible time-correlations with their flaring status.
