• DOI:10.1088/0004-637X/743/2/184
• Corpus ID: 26948630

THE PAN-PACIFIC PLANET SEARCH. I. A GIANT PLANET ORBITING 7 CMa

@article{Wittenmyer2011THEPP,
  title={THE PAN-PACIFIC PLANET SEARCH. I. A GIANT PLANET ORBITING 7 CMa},
  author={Robert A. Wittenmyer and Michael Endl and Liang-Yao Wang and John Asher Johnson and Christopher G. Tinney and S. J. O’Toole},
  journal={The Astrophysical Journal},
  year={2011},
  volume={743}
}

• R. Wittenmyer, M. Endl, +3 authors S. O’Toole
• Published 3 November 2011
• Physics, Geology
• The Astrophysical Journal

We introduce the Pan-Pacific Planet Search, a survey of 170 metal-rich Southern Hemisphere subgiants using the 3.9 m Anglo-Australian Telescope. We report the first discovery from this program, a giant planet orbiting 7 CMa (HD 47205) with a period of 763 ± 17 days, eccentricity e = 0.14 ± 0.06, and msin i = 2.6 ± 0.6 MJup. The host star is a K giant with a mass of 1.5 ± 0.3 M☉ and metallicity [Fe/H] = 0.21 ± 0.10. The mass and period of 7 CMa b are typical of planets which have been found to orbit intermediate-mass stars (M* > 1.3 M☉). Hipparcos photometry shows this star to be stable to 0.0004 mag on the radial-velocity period, giving confidence that this signal can be attributed to reflex motion caused by an orbiting planet.