Two New Candidate Planets in Eccentric Orbits

  title={Two New Candidate Planets in Eccentric Orbits},
  author={Geoffrey W. Marcy and R. Paul Butler and Steven S. Vogt and Debra A. Fischer and Michal Ostrowski Iowa State University and Anglo-Australian Observatory and Lick ObservatoryUC Santa Cruz and Uc Berkeley},
  journal={The Astrophysical Journal},
Doppler measurements of two G-type main-sequence stars, HD 210277 and HD 168443, reveal Keplerian variations that imply the presence of companions with masses (M sin i) of 1.28 and 5.04 MJ (where MJ is the mass of Jupiter) and orbital periods of 437 and 58 days, respectively. The orbits have large eccentricities of e = 0.45 and e = 0.54, respectively. All nine known extrasolar planet candidates with a = 0.2-2.5 AU have orbital eccentricities greater than 0.1, higher than that of Jupiter (e = 0… Expand
Doppler measurements of two G-type main-sequence stars, HD 210277 and HD 168443, reveal Keplerian variations that imply the presence of companions with masses (M sin i) of 1.28 and 5.04 M J (where isExpand
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