The motion of charged dust particles in interplanetary space. I - The zodiacal dust cloud. II - Interstellar grains

Details The motion of charged dust particles in interplanetary space. I - The zodiacal dust cloud. II - Interstellar grains The motion of charged dust particles in interplanetary space. I - The zodiacal dust cloud. II - Interstellar grains

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979p%26ss...27.1269m&link_type=abstract

Planetary and Space Science, vol. 27, Oct. 1979, p. 1269-1292.

Physics

37

Charged Particles, Interplanetary Space, Interstellar Matter, Orbit Perturbation, Particle Motion, Zodiacal Dust, Distribution Functions, Equations Of Motion, Interplanetary Magnetic Fields, Orbital Resonances (Celestial Mechanics), Particle Size Distribution, Particle Trajectories, Stochastic Processes, Topology

Scientific paper

The problem of electromagnetic perturbations of charged dust particle orbits in interplanetary space was reexamined in the light of the large scale spatial and temporal interplanetary plasma and field topology. Using analytical and numerical solutions for particle propagation it was shown that: (1) stochastic variations induced by electromagnetic forces are unimportant for the zodiacal dust cloud except for the lowest masses, (2) systematic variations in orbit inclinations are unimportant if orbital radii are larger than 10 A.U., (3) systematic variations in orbital parameters induced by electromagnetic forces tend to shift the plane of symmetry of the zodiacal dust cloud towards the solar magnetic equatorial plane, and (4) inside 0.3 A.U. it is possible that dust particles may enter a region of magnetically resonant orbits for some time. It is concluded that numerical orbit calculation of dust particles show that one of the results of interaction of charged particles with the interplanetary magnetic field is the rotation of the orbit plane about the solar rotational axis.

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