Excitation of Inclinations in Ring - Satellite Systems
نویسندگان
چکیده
Resonant gravitational interactions between a ring and a satellite produce secular variations of their orbital inclinations. Interactions at vertical resonances, analogous to Lindblad resonances but involving inclinations instead of eccentricities, excite inclinations. There is no inclination analog of the corotation resonance. An equatorial ring changes the inclination of a nearby satellite in qualitatively the same way that a satellite in an equatorial orbit changes the inclination of a nearby ring. Viscous dissipation in a ring leads to an equilibrium value of its inclination. These results provide a basis for discussing the origins of the inclinations of planetary rings. Subject headings: celestial mechanicsplanets: satellitesplanets: Saturnplanets: Uranus
منابع مشابه
The Secular Evolution of a Close Ring–Satellite System: The Excitation of Spiral Bending Waves at a Nearby Gap Edge
The secular perturbations exerted by an inclined satellite orbiting in a gap in a broad planetary ring tends to excite the inclinations of the nearby ring particles, and the ring’s self–gravity can allow that disturbance to propagate away in the form of a spiral bending wave. The amplitude of this spiral bending wave is determined, as well as the wavelength, which shrinks as the waves propagate...
متن کاملPhysical Investigation of Space, Dosimetry of Space Ionizing Ray Effect (Van Allen belts, Galactic Cosmic Rays and Solar particles) and Plotting Dose Map for Satellite Circular Missions
One of the main factors for satellite design is simulating of total ionizing dose due to space ionizing rays in devices used in space. By measurement of induced dose based on available data in different altitudes, expenses of designing, satellite weight and amount of needed fuel will be reduced. Optimum design of satellite for protecting satellite against ionizing radiation has considerable eff...
متن کاملThe Secular Evolution of a Close Ring–Satellite System: The Excitation of Spiral Density Waves at a Nearby Gap Edge
The Lagrange planetary equations are used to study to secular evolution of a small, eccentric satellite that orbits within a narrow gap in a broad, selfgravitating planetary ring. These equations show that the satellite’s secular perturbations of the ring will excite a very long-wavelength spiral density wave that propagates away from the gap’s outer edge. The amplitude of these waves, as well ...
متن کاملPerformance of Multi-beam Satellite Systems With A New Bandwidth Sharing Algorithm
An efficient resource allocation is important to guarantee the best performance with a fair distribution of multi-beam satellite capacity to provide satellite multimedia and broadcasting services. In this way, available bandwidth and capacity problems in new satellite system likes Multi-Input-Multi-Output (MIMO), exploring new techniques for enhancing spectral efficiency in satellite communicat...
متن کاملOrbital resonances in the inner neptunian system II. Resonant history of Proteus, Larissa, Galatea, and Despina
We investigate the orbital history of the small neptunian satellites discovered by Voyager 2. Over the age of the Solar System, tidal forces have caused the satellites to migrate radially, bringing them through mean-motion resonances with one another. In this paper, we extend our study of the largest satellites Proteus and Larissa [Zhang, K., Hamilton, D.P., 2007. Icarus 188, 386–399] by adding...
متن کامل