Speaker
Yo Kusafuka
(Institute for Cosmic Ray Research, the University of Tokyo)
Description
We present a new model for the TeV afterglow of GRB 221009A. The magnetic acceleration reproduces the rapid increase of the TeV flux in the very early phase. We consider the change in the radial structure of the circumstellar medium from homogeneous to wind-like to describe the breaks in the TeV light curve. Our results imply a highly magnetized ejecta with a significantly thick width, making the deceleration time around 400 s for observers. In our model, no early jet break is required.
Author
Yo Kusafuka
(Institute for Cosmic Ray Research, the University of Tokyo)
Co-author
Katsuaki Asano
(Institute for Cosmic Ray Research, the University of Tokyo)
