Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ap%26ss.176..105z&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 176, no. 1, Feb. 1991, p. 105-121. University of Illinois-supported resear
Astronomy and Astrophysics
Astrophysics
3
Electromagnetic Radiation, Magnetically Trapped Particles, Particle Acceleration, Particle Trajectories, Pulsar Magnetospheres, Rotating Plasmas, Magnetic Dipoles, Magnetohydrodynamic Flow, Radiation Effects, Spheres
Scientific paper
The orbits of charged particles trapped by a central attractive Coulomb force in the region beyond the light-cylinder radius (rho) of a highly magnetized oblique rotating sphere are investigated theoretically. The derivation of the governing equations is outlined, and numerical results are presented in graphs. It is shown that, although none of the bounded attracting orbits in the outer region are periodic, the orbits for many values of the system parameters (including those typical of pulsars) have periodic trajectories in the rho-z plane; these orbits would result in the arrangement of particles along a three-dimensional curve, corotating with the magnetic field, beyond the light cylinder. The possibility that such trapped particles could be a source of pulsed radiation is discussed.
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