Numerical simulation of Poynting-Robertson and collisional effects in the interplanetary dust cloud

Details Numerical simulation of Poynting-Robertson and collisional effects in the interplanetary dust cloud Numerical simulation of Poynting-Robertson and collisional effects in the interplanetary dust cloud

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....91..155t&link_type=abstract

Astronomy and Astrophysics, vol. 91, no. 1-2, Nov. 1980, p. 155-160.

Astronomy and Astrophysics

Astrophysics

7

Interplanetary Dust, Particle Collisions, Poynting-Robertson Effect, Collision Parameters, Computerized Simulation, Particle Trajectories

Scientific paper

A numerical simulation model is developed to investigate the combined influence of the Poynting-Robertson and collisional effects on the dynamical evolution of an interplanetary dust population. It is shown that collisional effects should be taken into account when the mean free collision time is of the order of or shorter than the Poynting-Robertson effect. The individual grains still spiral inwards, but collisions now act to make the statistical mean eccentricity and inclination of the orbits decrease at comparable rates with decreasing solar distance. This produces an expanding fan-shaped form of the interplanetary dust cloud.

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