Abstract
The gamma-ray burst (GRB) 060218 has ~ 108 times lower luminosity than typical long GRBs, and is associated with a supernova (SN). The radio afterglow displays no jet break, so that this burst might arise from a mildly-relativistic spherical outflow produced by the SN shock sweeping the stellar surface. Since this model is energetically difficult, we propose that the radio afterglow is produced by a non-relativistic phase of an initially collimated outflow (jet). Our jet model is supported by the detection of optical linear polarization in the SN component. We show analytically that the jet can penetrate a progenitor star. A possible engine of a neutron star is also discussed.
| Original language | English |
|---|---|
| Pages | 74-77 |
| Number of pages | 4 |
| Publication status | Published - 2006 Dec 1 |
| Externally published | Yes |
| Event | 16th Workshop on General Relativity and Gravitation in Japan, JGRG 2006 - Niigata, Japan Duration: 2006 Nov 27 → 2006 Dec 1 |
Conference
| Conference | 16th Workshop on General Relativity and Gravitation in Japan, JGRG 2006 |
|---|---|
| Country | Japan |
| City | Niigata |
| Period | 06/11/27 → 06/12/1 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics