THE PAN-PACIFIC PLANET SEARCH. IV. TWO SUPER-JUPITERS IN A 3:5 RESONANCE ORBITING THE GIANT STAR HD 33844

Robert A. Wittenmyer; John Asher Johnson; R. P. Butler; Jonathan Horner; Liang Wang; Paul Robertson; M. I. Jones; J. S. Jenkins; R. Brahm; C. G. Tinney; M. W. Mengel; J. Clark

doi:10.3847/0004-637X/818/1/35

THE PAN-PACIFIC PLANET SEARCH. IV. TWO SUPER-JUPITERS IN A 3:5 RESONANCE ORBITING THE GIANT STAR HD 33844

Robert A. Wittenmyer, John Asher Johnson, R. P. Butler, Jonathan Horner, Liang Wang, Paul Robertson, M. I. Jones, J. S. Jenkins, R. Brahm, C. G. Tinney, M. W. Mengel, J. Clark

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28 Scopus citations

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	English
Article number	35
Journal	Astrophysical Journal
Volume	818
Issue number	1
DOIs	https://doi.org/10.3847/0004-637X/818/1/35
State	Published - 10 Feb 2016
Externally published	Yes

Keywords

planetary systems
stars: individual (HD 33844)
techniques: radial velocities

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10.3847/0004-637X/818/1/35

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Wittenmyer, R. A., Johnson, J. A., Butler, R. P., Horner, J., Wang, L., Robertson, P., Jones, M. I., Jenkins, J. S., Brahm, R., Tinney, C. G., Mengel, M. W., & Clark, J. (2016). THE PAN-PACIFIC PLANET SEARCH. IV. TWO SUPER-JUPITERS IN A 3:5 RESONANCE ORBITING THE GIANT STAR HD 33844. Astrophysical Journal, 818(1), Article 35. https://doi.org/10.3847/0004-637X/818/1/35

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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 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 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.",

keywords = "planetary systems, stars: individual (HD 33844), techniques: radial velocities",

author = "Wittenmyer, {Robert A.} and Johnson, {John Asher} and Butler, {R. P.} and Jonathan Horner and Liang Wang and Paul Robertson and Jones, {M. I.} and Jenkins, {J. S.} and R. Brahm and Tinney, {C. G.} and Mengel, {M. W.} and J. Clark",

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AU - Wittenmyer, Robert A.

AU - Johnson, John Asher

AU - Butler, R. P.

AU - Horner, Jonathan

AU - Wang, Liang

AU - Robertson, Paul

AU - Jones, M. I.

AU - Jenkins, J. S.

AU - Brahm, R.

AU - Tinney, C. G.

AU - Mengel, M. W.

AU - Clark, J.

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AB - 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 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.

KW - planetary systems

KW - stars: individual (HD 33844)

KW - techniques: radial velocities

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THE PAN-PACIFIC PLANET SEARCH. IV. TWO SUPER-JUPITERS IN A 3:5 RESONANCE ORBITING THE GIANT STAR HD 33844

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Keywords

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