Multimessenger Analysis Strategy for Core-Collapse Supernova Search: Gravitational Waves and Low-energy Neutrinos

Understand

Core-collapse supernovae are fascinating astrophysical objects for multimessenger studies.

• Gravitational waves (GWs) are expected to play a role in the supernova explosion mechanism, but their modelling is also challenging due to the stochastic nature of the dynamics and the vast possible progenitors, and moreover, the GW detection from these objects is still elusive with the already advanced detectors.
• Low-energy neutrinos will be emitted enormously during the core-collapse explosion and can help for the gravitational wave counterpart search.
• In this work we develop a multi-messenger strategy to search for such astrophysical objects by exploiting a global network of both low-energy neutrino and gravitational wave detectors.