We study here the local minima, maxima, and saddle points of the augmented potential on the surface of a small celestial body with application to comet (67P) Churyumov–Gerasimenko. The isolines of the augmented potential on this surface are determined, in particular, those corresponding to the saddle points. The results are applied to reveal the correlation between the structure of the areas of possible motion on the comet surface and geographic objects on this surface previously defined in the course of the Rosetta mission.

中文翻译：

---

彗星 (67P) Churyumov–Gerasimenko 的峰、谷和低地

我们在这里研究小天体表面增强势的局部最小值、最大值和鞍点，并将其应用于彗星 (67P) Churyumov–Gerasimenko。确定该表面上增广势的等值线，特别是那些对应于鞍点的等值线。结果用于揭示彗星表面可能运动区域的结构与先前在罗塞塔任务过程中定义的该表面上的地理物体之间的相关性。