Size of the final planetary orbit as a function of its initial value, r_p, and initial binary separation, a. A planet migrates all the time it is embedded in an NS disk with α = 10⁻². The curves show contours of the same size of the final planetary orbit marked by its value in AU. The masses are: M₁ = 5.0 M_⊙ and m_p = 30 m_⊕. The gray area at the upper left part of the figure shows the region of dynamically unstable planetary orbits calculated using Eq. (23). Migration contours are obtained by interpolation using the nodes taken with the step ∆a = 10 AU and ∆r_p = 1 AU with additional values r_p = 0.25,0.5,0.75,1.5 AU closer to the host star. The curve marked as “0.0” (red color) shows the planets that reached the TM distance, $r_{\text{p}}^{\text{fin}}$, by the moment of the disk decay.