Exploring the Properties of Choked Gamma-Ray Bursts with IceCube's High Energy Neutrinos

Understand

Long duration gamma-ray bursts (GRBs) have often been considered as the natural evolution of some core-collapse supernova (CCSN) progenitors.

• However, the fraction of CCSNe linked to astrophysical jets and their properties are still poorly constrained.
• While any successful astrophysical jet harbored in a CCSN should produce high energy neutrinos, photons may be able to successfully escape the stellar envelope only for a fraction of progenitors, possibly leading to the existence of high-luminosity, low-luminosity and not-electromagnetically bright ("choked") GRBs.
• By postulating a CCSN-GRB connection, we accurately model the jet physics within the internal-shock GRB model and assume scaling relations for the GRB parameters that depend on the Lorentz boost factor $\Gamma$.