Speaker
Description
The origin of high-energy neutrinos is still unknown, while gamma-ray bursts, the most powerful and luminous transients in the universe, remain a viable candidate. Even though IceCube observations stringently constrain the contribution from the typical long GRBs, the low-luminosity GRBS (LL GRBS) are promising candidates to be the main population of the diffuse neutrinos. In this work, we perform a comprehensive study of LL GRBs, particularly those that occurred during the IceCube experiment. We discuss the theoretical interpretation of LL GRBs, where we utilized the X-ray, gamma-ray, and neutrino observational data of the four LL GRBs to constrain the physical parameters of the LL GRB model. Our results have implications for the LL GRB contribution to diffuse neutrinos. In the future, more LL GRBs will be discovered. The real-time search of the coincidences between LL GRBs and high-energy neutrinos would provide direct evidence of LL GRBs21 as sources of neutrinos.
