Results 81 to 90 of about 60,551 (179)
Surprising Spin–Orbit Resonances of Rocky Planets
The Astrophysical JournalRecent works suggest that, in multiplanetary systems, a close-in exoplanet can sometimes avoid becoming tidally locked to its host star if it is captured into a secular spin–orbit resonance with a companion planet. In such a resonance, the planet remains
Henry D. A. Yuan +2 more
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Dynamics of the Kuiper Belt [PDF]
, 1999 Our current knowledge of the dynamical structure of the Kuiper Belt is reviewed here. Numerical results on long term orbital evolution and dynamical mechanisms underlying the transport of objects out of the Kuiper Belt are discussed.
Duncan, M., Levison, H., Malhotra, R.
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The Six-planet Resonant Chain of HD 110067
The Astrophysical Journal LettersHD 110067 is the brightest star known to have six transiting planets. Each adjacent pair of planets has a period ratio that is nearly equal to a ratio of small integers, suggesting the planets are in a chain of mean-motion resonances, but the limited ...
Caleb Lammers, Joshua N. Winn
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The Instability Mechanism of Compact Multiplanet Systems
The Astrophysical JournalTo improve our understanding of orbital instabilities in compact planetary systems, we compare suites of N -body simulations against numerical integrations of simplified dynamical models.
Caleb Lammers, Sam Hadden, Norman Murray
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Tides in Massive Binaries: Numerical Solutions and Semianalytical Comparisons
The Astrophysical JournalWe present a systematic comparison between the tidal secular evolution timescales predicted by the direct numerical method and those given by the commonly used semianalytic prescriptions implemented in 1D hydrostatic binary evolution codes.
Meng Sun +7 more
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A Unified, Physical Framework for Mean Motion Resonances
The Astrophysical JournalThe traditional approach to analyzing mean motion resonances (MMRs) is through the canonical perturbation theory. While this is a powerful method, its generality leads to complicated combinations of variables that are challenging to interpret and require
Daniel Tamayo, Samuel Hadden
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The Astrophysical JournalPlanetary systems exhibiting mean motion resonances (MMRs) offer unique opportunities to study the imprint of disk-induced migration on the orbital architectures of planetary systems. The HD 45364 system, discovered via the radial velocity (RV) method to
Ian Chow, Sam Hadden
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Analytical and Numerical Methods for Circumbinary Disk Dynamics. II. Inclined Disks
The Astrophysical JournalTo gain insight into the dynamical influence of a supermassive black hole binary on a circumbinary accretion disk, we investigate the binary and viscous torque densities throughout such a disk, with emphasis on the final density distribution ...
Michal Pirog +2 more
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Unexpected Near-Resonant and Metastable States of Young Multiplanet Systems
The Astrophysical JournalRecent observations suggest that the incidence of near-resonant planets declines as planetary systems age, making young planetary systems key signposts of early dynamical evolution.
Zhecheng Hu +6 more
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Intruder Alert: Breaking Resonant Chains with Planetesimal Flybys
The Astrophysical Journal LettersThe orbital architectures of compact “Kepler-multi” (KM) exoplanet systems record their complicated dynamical histories. The “breaking-the-chains” hypothesis proposes that compact systems typically form in chains of mean-motion resonances and ...
Jiaru Li +2 more
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