Ponente
Descripción
The identification of gamma rays in coincidence with high-energy neutrinos plays a fundamental role in multi-messenger astronomy, as such observations are essential for constraining source localization, determining source classes, and investigating emission mechanisms. The present study evaluates the prospects of Cherenkov Telescope Array Observatory (CTAO) for detecting very-high-energy (VHE) gamma-ray counterparts of neutrino-emitting extragalactic sources.
The performance of CTAO is assessed under the “Alpha” configuration based on simulations of neutrino and gamma-ray emissions from both steady sources and flaring blazars. Detection probabilities for IceCube neutrino events are calculated for both the Northern and Southern CTAO sites, assuming 30-minute follow-up observations. The detectability of blazars is further analyzed for extended observation windows of 1 to 5 hours.
Additionally, preliminary results are presented for a parallel analysis based on the KM3NeT ARCA neutrino telescope. Due to its improved sensitivity to Southern Hemisphere sources, ARCA offers complementary capabilities that enhance the multi-messenger potential of CTAO when combined with next-generation neutrino observatories.
