2003/11/12 by J. Greiner, S. Klose, K. Reinsch +23
Physics and Astronomy · #astro-ph
paper · pdf · doi:10.1038/nature02077
published as Nature 426 (2003) 257-259 · Nature 426 (13. Nov. 2003), 2 figures
arxiv created 2003/11/12 · arxiv updated 2009/12/01
We report 31 polarimetric observations of the afterglow of GRB 030329 with high signal-to-noise and high sampling frequency. We establish the polarization light curve, detect sustained polarization at the percent level, and find significant variability of polarization degree and angle. The data imply that the afterglow magnetic field has small coherence length and is mostly random, probably generated by turbulence.