Extended Data Fig. 3: Comparison between the model-predicted and observed location of the Eastern Arm for models with and without acceleration.
From: Radiation-driven acceleration in the expanding WR140 dust shell
All observations in which the Eastern Arm is visible are reproduced twice, one of which is overplotted with the outline of the model with acceleration and fitted to the location of the Eastern Arm (left panel of each pair) and the other without acceleration (right panel of each pair). The model without acceleration is fitted to the final epoch of observations. Lack of acceleration results in a misfit at earlier epochs.
