Global Dynamics and Stability Limits for Planetary Systems around HD 12661, HD 38529, HD 37124, and HD 160691
نویسندگان
چکیده
منابع مشابه
Sub-Saturn Planetary Candidates of HD 16141 and HD 46375.
Precision Doppler measurements from the Keck High-Resolution Echelle Spectrograph reveal periodic Keplerian velocity variations in the stars HD 16141 and HD 46375. HD 16141 (G5 IV) has a period of 75.8 days and a velocity amplitude of 11 m s-1, yielding a companion having Msini=0.22 M(JUP) and a semimajor axis of a=0.35 AU. HD 46375 (K1 IV-V) has a period of 3.024 days and a velocity amplitude ...
متن کاملAbout the Extrasolar Multi-planet System around Hd 160691
We re-analyze the precision radial velocity (RV) observations of HD160691 (μ Ara) by the Anglo-Australian Planet Search Team. The star is supposed to host two Jovian companions (HD160691b, HD160691c) in longperiod orbits (∼ 630 days and ∼ 2500 days, respectively) and a hot-Neptune (HD160691d) in ∼ 9 days orbit. We perform a global search for the best fits in the orbital parameters space with a ...
متن کاملOn the Extrasolar Multi-planet System around Hd 160691
We re-analyze the precision radial velocity (RV) observations of HD160691 (μ Ara) by the Anglo-Australian Planet Search Team. The star is supposed to host two Jovian companions (HD160691b, HD160691c) in longperiod orbits (∼ 630 days and ∼ 2500 days, respectively) and a hot-Neptune (HD160691d) in ∼ 9 days orbit. We perform a global search for the best fits in the orbital parameters space with a ...
متن کاملResonances of low orders in the planetary system around the star HD 37124
The full set of published radial velocity data (52 measurements from Keck + 58 ones from ELODIE + 17 ones from CORALIE) for the star HD37124 is analysed. Two families of dynamically stable high-eccentricity orbital solutions for the planetary system were found. In the first one, the outer planets c and d are trapped in the 2/1 mean-motion resonance. The second family of solutions corresponds to...
متن کاملTrojan Pairs in the Hd 128311 and Hd 82943 Planetary Systems?
Two nearby stars, HD 128311 and HD 82943, are believed to host pairs of Jupiter-like planets involved in a strong first order 2:1 mean motion resonance. In this work we reanalyze available radial velocity (RV) measurements and demonstrate that it is also possible to explain the observed RV variations of the parents stars as being induced by a pair of Trojan planets. We show that these Trojan co...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2002
ISSN: 0004-637X,1538-4357
DOI: 10.1086/344706