Figure 10

Figure 10: A small body, represented by the black disk, is immersed in a background spacetime. The internal zone is defined by R ≪ 1, while the external zone is defined by R ≫ 𝜀. Since 𝜀 ≪ 1, there exists a buffer region defined by 𝜀 ≪ R ≪ 1. In the buffer region 𝜀∕R and R are both small.