Orbital resonances and Poynting-Robertson drag

Details Orbital resonances and Poynting-Robertson drag Orbital resonances and Poynting-Robertson drag

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993icar..104..244w&link_type=abstract

Icarus (ISSN 0019-1035), vol. 104, no. 2, p. 244-254.

Physics

36

Drag, Interplanetary Dust, Orbital Resonances (Celestial Mechanics), Poynting-Robertson Effect, Radiation Pressure, Stellar Orbits, Orbit Perturbation, Particle Size Distribution, Three Body Problem

Scientific paper

The phenomenon of resonance trapping with Poynting-Robertson drag in the simplest case - the circular restricted three-body problem - is elucidated. Attention is given to what determines whether a grain of a given size passes through a given resonance or is trapped there, to how and why a trapped particle's orbit evolves with time, and to why Poynting-Robertson drag resonances are only temporary, while gas-drag resonances appear to be stable. The possibility of trapping a grain into resonance with a planet depends on the combination of the following parameters: the ratio of radiation pressure force to solar gravity, the mass of the perturbing planet normalized to the solar mass, an integer, and eccentricity. In general, the peak eccentricity and sometimes the threshold value are large enough so that crossing orbits and close approaches to the planet can inhibit capture and aid escape from resonance.

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