Dynamical evidence for Phobos and Deimos as remnants of a disrupted common progenitor

  title={Dynamical evidence for Phobos and Deimos as remnants of a disrupted common progenitor},
  author={Amirhossein Bagheri and Amir Khan and Michael Efroimsky and M. I. Kruglyakov and Domenico Giardini},
  journal={Nature Astronomy},
The origin of the Martian moons, Phobos and Deimos, remains elusive. While the morphology and their cratered surfaces suggest an asteroidal origin1–3, capture has been questioned because of potential dynamical difficulties in achieving the current near-circular, near-equatorial orbits4,5. To circumvent this, in situ formation models have been proposed as alternatives6–9. Yet, explaining the present location of the moons on opposite sides of the synchronous radius, their small sizes and apparent… Expand

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