Fig. 12.
Density profiles of CSM as functions of velocity at the core collapse for the fiducial models. The broken lines (solid lines) correspond to the CSM erupted by the first injection (second injection). The gray line represents the relation ρ ∝ v−1.5, which we adopt as a fiducial slope in the case of eruptive mass loss (Kuriyama & Shigeyama 2020; Tsuna et al. 2020).
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