Abstract
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 {a}b\=1.60+/- 0.02 AU and {a}c=2.24+/- 0.05 AU, and have minimum masses (m sin i) of {M}b=1.96+/- 0.12 {M}{{Jup}} and {M}c=1.76+/- 0.18 {M}{{Jup}}. Detailed N-body dynamical simulations show that the two planets have remained on stable orbits for more than 106 years for low eccentricities and are most likely trapped in a mutual 3:5 mean motion resonance.
Original language | American English |
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Journal | The Astrophysical Journal |
Volume | 818 |
DOIs | |
State | Published - Jan 1 2016 |
Keywords
- Planetary Systems
- Stars: Individual (HD 33844)
- Techniques: Radial Velocities
Disciplines
- Physical Sciences and Mathematics
- Physics