RINGO on the Liverpool Telescope has now measured the optical polarization of GRB 060418 (where a 2 sigma upper limit of P<8% was determined) and GRB 090102 (when a detection of P = 10 +/-1 % was made). We discuss the implications of these observations for the various competing models of GRB jet magnetization and describe a possible unified model that can explain both measurements.
|Title of host publication||Proceedings of The Shocking Universe Conference held in San Servolo, 2009|
|Publication status||Published - Dec 2009|
Steele, I. A., Mundell, C., Smith, R. J., Kobayashi, S., & Guidorzi, C. (2009). Early time optical polarization of GRB Afterglows: GRB 060418 and GRB 090102. In Proceedings of The Shocking Universe Conference held in San Servolo, 2009