Multi-messenger emission from choked jets in collapsar
Abstract
The death of massive stars produces central accreting compact objects and sometimes relativistic jets. Not all jets escape the stellar envelope: unsuccessful, or choked, jets dissipate their energy into a pressurized cocoon, which expands and may break out as a mildly relativistic outflow. We investigate the plasma physics of collapsing massive stars hosting choked jets through relativistic, non-resistive magnetohydrodynamical simulations. We delineate the parameter space for jet choking and quantify the acceleration rate and efficiency of charged particles at strong shocks, which are potential sources of high-energy neutrinos and electromagnetic transients. Our study focuses on blue and red supergiant progenitors, both promising candidates for jet choking.
Cite
@article{arxiv.2604.27257,
title = {Multi-messenger emission from choked jets in collapsar},
author = {Zegarelli Angela and Pais Matteo and Peretti Enrico and Celli Silvia},
journal= {arXiv preprint arXiv:2604.27257},
year = {2026}
}
Comments
Contribution to the 2026 Very High Energy Phenomena in the Universe session of the 60th Rencontres de Moriond