Extended Data Figure 2: Results of Monte Carlo simulations.
From: Significant and variable linear polarization during the prompt optical flash of GRB 160625B
For each of the four polarization epochs, we simulated and examined a large number of data sets with similar photometric properties and no intrinsic afterglow polarization. a, Results of 105 simulations for the first epoch (95–115 seconds). b, As for a, but for the second epoch (144–174 seconds). c, Results of 106 simulations for the third epoch (186–226 seconds). d, As for c, but for the fourth epoch (300–360 seconds). The observed values are shown by vertical arrows. The probability of obtaining by chance a polarization measurement as high as the observed value is also reported. Πmin, minimum polarization value.
