Orbital migration of the planetary companion of 51 Pegasi to its present location

  title={Orbital migration of the planetary companion of 51 Pegasi to its present location},
  author={Douglas N. C. Lin and Peter H. Bodenheimer and Derek C. Richardson},
THE recent discovery1 and confirmation2 of a possible planetary companion orbiting the solar-type star 51 Pegasi represent a breakthrough in the search for extrasolar planetary systems. Analysis of systematic variations in the velocity of the star indicate that the mass of the companion is approximately that of Jupiter, and that it is travelling in a nearly circular orbit at a distance from the star of 0.05 AU (about seven stellar radii). Here we show that, if the companion is indeed a gas… 


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