Extended Data Fig. 2: Orbital and azimuthal variation of dust production rate in the geometric model.
From: Radiation-driven acceleration in the expanding WR140 dust shell

(a) Dust production rate as a function of orbital phase near periastron. Dust is not produced at all other orbital phases. (b) Dust production rate as a function of azimuthal angle (about the WR–O star axis) relative to the trailing edge. The 1σ uncertainty regions in both plots are shaded.