A search for neutrino bursts in the Galaxy at the Baksan Underground Scintillation Telescope

Abstract

The experiment on recording neutrino bursts operates since the mid-1980. As the target, we use two parts of the facility with the total mass of 240 tons. Over the period of June 30, 1980 to December 31, 2017, the actual observational time is 32.1 years. No candidate for the stellar core collapse has been detected during the observation period. An upper bound of the mean frequency of core collapse supernovae in our Galaxy is 0.072 year−1 (90% CL).