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Formation of Close-in Super-Earths by Giant Impacts: Effects of Initial Eccentricities and Inclinations of Protoplanets

  • Authors: Yuji Matsumoto and Eiichiro Kokubo

2017 The Astronomical Journal 154 27.

  • Provider: AAS Journals

Caption: Figure 4.

Number (N; panel (a)), angular momentum deficit (D; (b)), mass-weighted eccentricity (﹩\langle e{\rangle }_{M};﹩ (c)) and inclination (﹩\langle i{\rangle }_{M};﹩ (d)), and mean orbital separation normalized by the Hill radius (﹩{\rm{\Delta }}a/{r}_{{\rm{H}}};﹩(e)) of the final planets are plotted as a function of the initial eccentricity dispersion of protoplanets (﹩\langle {e}_{\mathrm{ini}}^{2}{\rangle }^{1/2}﹩). The error bars indicate the standard deviation. The filled symbols are the results of model N16 and the open symbols are those of model N8. The initial inclination dispersions are ﹩\langle {i}_{\mathrm{ini}}^{2}{\rangle }^{1/2}={10}^{-3.6}﹩ rad (red circles), ﹩\langle {i}_{\mathrm{ini}}^{2}{\rangle }^{1/2}={10}^{-2.5}﹩ rad (blue triangles), ﹩\langle {i}_{\mathrm{ini}}^{2}{\rangle }^{1/2}={10}^{-1.5}﹩ rad (green squares), and ﹩\langle {i}_{\mathrm{ini}}^{2}{\rangle }^{1/2}={10}^{-1}﹩ rad (orange diamonds).

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