On the Origin of Massive Eccentric Planets

  title={On the Origin of Massive Eccentric Planets},
  author={Douglas N. C. Lin and Shigeru Ida},
  journal={The Astrophysical Journal},
  • D. Lin, S. Ida
  • Published 1997
  • Physics
  • The Astrophysical Journal
We propose a merger scenario for the newly discovered extrasolar planets around 70 Vir (Marcy & Butler) and HD 114762 (Latham, Stefanik, & Mazeh; Marcy & Butler). These planets have mass Mp sin i = 6.6 and 9MJ (where MJ is Jupiter's mass and i is the orbital inclination), orbital semimajor axis a = 0.43 and 0.34 AU, and eccentricity e = 0.38 and 0.35, respectively. Our scenario is based on the conventional formation model of giant planets (gas accretion onto solid cores) and the long-term… Expand
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