Stability of Satellites around Close-in Extrasolar Giant Planets

  title={Stability of Satellites around Close-in Extrasolar Giant Planets},
  author={Jason W. Barnes and David P. O'Brien},
  journal={The Astrophysical Journal},
  pages={1087 - 1093}
We investigate the long-term dynamical stability of hypothetical moons orbiting extrasolar giant planets. Stellar tides brake a planet's rotation and, together with tidal migration, act to remove satellites; this process limits the lifetimes of larger moons in extrasolar planetary systems. Because more massive satellites are removed more quickly than less massive ones, we are able to derive an upper mass limit for those satellites that might have survived to the present day. For example, we… 

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