Search for supernova bursts in Super-Kamiokande IV

Abstract

Super-Kamiokande has been searching for neutrino bursts characteristic of core-collapse supernovae continuously, in real time, since the start of operations in 1996. The present work focuses on detecting more distant supernovae whose event rate may be too small to trigger in real time, but may be identified using an offline approach. The analysis of data collected from 2008 to 2018 found no evidence of distant supernovae bursts. This establishes an upper limit of 0.29 year${}^{-1}$ on the rate of core-collapse supernovae out to 100 kpc at 90% C.L.. For supernovae that fail to explode and collapse directly to black holes the limit reaches to 300 kpc.

References in corpus (4)

• Solar neutrino measurements in Super-Kamiokande-II
• Supernova Neutrino Light Curves and Spectra for Various Progenitor Stars: From Core Collapse to Proto-neutron Star Cooling
• On the rate of core collapse supernovae in the Milky Way
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Cited by in corpus (7)

• Multi-messenger Gravitational Lensing
• Combined Pre-Supernova Alert System with Kamland and Super-Kamiokande
• Observing Supernova Neutrino Light Curves with Super-Kamiokande. V. Distance Estimation with Neutrinos
• Development of a data overflow protection system for Super-Kamiokande to maximize data from nearby supernovae
• Long-term neutrino emission from a core-collapse supernova with axion-photon coupling
• Timing coincidence search for supernova neutrinos with optical transient surveys
• Individual Neutrino Masses From a Supernova