Extended Data Fig. 5: The fit of the afterglow plus engine-fed kilonova model to multiwavelength data.
From: A long-duration gamma-ray burst with a peculiar origin
a, Corner plot of the posterior probability distributions of the parameters. The red error bars represent the 1σ uncertainties. b, Afterglow-subtracted observations and best-fitting engine-fed kilonova model. The detections and upper limits of the afterglow-subtracted observations are shown with solid circles and downward arrows, respectively. The best-fit models in different bands are presented with solid lines.
