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Solar system dynamics
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In this paper, the two-body problem and the restricted three body problem are considered. And the disturbing function is extended to include the spin-orbit coupling and the resonance perturbations.Abstract:
Preface 1 Structure of the solar system 2 The two-body problem 3 The restricted three-body problem 4 Tides, rotation and shape 5 Spin-orbit coupling 6 The disturbing function 7 Secular perturbations 8 Resonant perturbations 9 Chaos and long-term evolution 10 Planetary rings Appendix A Solar system data Appendix B Expansion of the disturbing function Indexread more
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One of the closest exoplanet pairs to the 3:2 mean motion resonance: K2-19b and c
David J. Armstrong,Alexandre Santerne,Dimitri Veras,S. C. C. Barros,Olivier Demangeon,Jorge Lillo-Box,James McCormac,Hugh P. Osborn,Maria Tsantaki,Jose-Manuel Almenara,Jose-Manuel Almenara,David Barrado,Isabelle Boisse,Aldo S. Bonomo,D. J. A. Brown,Giovanni Bruno,Javiera Rey Cerda,B. Courcol,Magali Deleuil,Rodrigo F. Díaz,A. P. Doyle,Guillaume Hébrard,James Kirk,K. W. F. Lam,Don Pollacco,A. S. Rajpurohit,Jessica Spake,S. R. Walker +27 more
TL;DR: In this paper, the authors search through two separate pipelines led to the independent discovery of K2-19b and c, a two-planet system of Neptune-sized objects (4.2 and 7.2 R-circle plus), orbiting a K dwarf extremely close to the 3: 2 mean motion resonance.
Journal ArticleDOI
Phase Light Curves for Extrasolar Jupiters and Saturns
Ulyana A. Dyudina,Ulyana A. Dyudina,Penny D. Sackett,Daniel Bayliss,Daniel Bayliss,Sara Seager,Carolyn C. Porco,Henry B. Throop,Luke Dones +8 more
TL;DR: In this article, the authors predict how a remote observer would see the brightness variations of giant planets similar to those in our solar system as they orbit their central stars, using measured anisotropic scattering properties of solar system giants.
Low-thrust trajectory optimization and interplanetary mission analysis using evolutionary neurocontrol
TL;DR: Inspired by natural archetypes, a novel smart method for global low-thrust trajectory optimization is presented that fuses artificial neural networks and evolutionary algorithms to so-called evolutionary neurocontrollers that are able to find spacecraft steering strategies that generate better trajectories closer to the global optimum.
Journal ArticleDOI
A search for additional planets in the nasa epoxi observations of the exoplanet system gj 436
Sarah Ballard,Jessie L. Christiansen,David Charbonneau,Drake Deming,Matthew J. Holman,Daniel C. Fabrycky,Michael F. A'Hearn,Dennis D. Wellnitz,Richard Barry,Marc J. Kuchner,Timothy A. Livengood,Tilak Hewagama,Tilak Hewagama,Jessica M. Sunshine,Don L. Hampton,Carey M. Lisse,Sara Seager,Joseph Veverka +17 more
TL;DR: In this paper, the authors present time series photometry of the M dwarf transiting exoplanet system GJ?436 obtained with the Extrasolar Planet Observation and Characterization (EPOCh) component of the NASA EPOXI mission.
Journal ArticleDOI
The scattering of small bodies in planetary systems: constraints on the possible orbits of cometary material
Amy Bonsor,Mark C. Wyatt +1 more
TL;DR: In this article, the authors present an analytical model to describe the process using the simplifying assumption that each particle's dynamics are dominated by a single planet at a time, and show that the scattering process can be considered as a series of three-body problems during which the Tisserand parameter with respect to the relevant planet is conserved.