On the existence of an exterior toroidal region in the nonaligned pulsar magnetosphere

Details On the existence of an exterior toroidal region in the nonaligned pulsar magnetosphere On the existence of an exterior toroidal region in the nonaligned pulsar magnetosphere

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...288..665m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 288, Jan. 15, 1985, p. 665-671. Research supported by the University of Ill

Statistics

Computation

4

Pulsar Magnetospheres, Pulsars, Stellar Magnetic Fields, Stellar Models, Toroidal Plasmas, Computational Astrophysics, Electron Density (Concentration), Electron Plasma, Equations Of Motion, Magnetohydrodynamics, Plasma-Particle Interactions

Scientific paper

The magnetosphere of a pulsar with nonaligned rotation and magnetic axes is studied numerically by considering the motion of single charged particles in the radiation and static fields assumed to exist outside of the inner magnetosphere. The fields used consist of wave fields plus static electric and magnetic fields. Both radial and angular dependence, as well as the effect of radiation reaction, are included. Well-defined trapped orbits, localized somewhat beyond the light cylinder, are found for a physically interesting region of parameter space. These attracting orbits, centered on the rotational equator, have a position which is independent of initial conditions over a wide range. Properties of these orbits are used to develop a simple model of a toroidal electron plasma region outside the star plus inner magnetosphere. The number density of electrons in this region is found to range from about 1000 to 1,000,000 per cu cm. It is suggested that such a region may emit high-frequency, pulsed radiation.

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