The Pan-Pacific Planet Search. IV. Two super-Jupiters in a 3:5 resonance orbiting the giant star HD33844
We report the discovery of two giant planets orbiting the K giant HD 33844 based on radial velocity data from three independent campaigns. The planets move on nearly circular orbits with semimajor axes ab=1.60±0.02 AU and ac=2.24±0.05 AU, and have minimum masses (m sin i) of Mb=1.96±0.12 Mjup and Mc=1.76±0.18 Mjup. Detailed N-body dynamical simulations show that the two planets remain on stable orbits for more than 106 years for low eccentricities, and are most likely trapped in a mutual 3:5 mean-motion resonance.
Caps Lock: Cruise control for 'Cool'!
- Number of posts : 3374
Location : Earth
Registration date : 2008-04-06
A pair of exoplanets for Christmas!
- dM star
- Number of posts : 1494
Location : Tau Ceti g - Mid Latitudes
Registration date : 2008-06-02
Permissions in this forum:You cannot reply to topics in this forum