Prefer a chat interface with context about you and your work?
Significant cocoon emission and photosphere duration stretching in GRB 211211A: a burst from a neutron star - black hole merger
The radiation mechanism (thermal photosphere or magnetic synchrotron) and the progenitor of gamma-ray burst (GRB) are under hot debate. Recently discovered, the prompt long-duration ($\sim$ 10 s, normally from the collapse of massive stars) property of GRB 211211A strongly conflicts with its association with a kilonova (normally from the merger …